+ All Categories
Home > Documents > DATA VISUALIZATION GUIDE - Lancet...

DATA VISUALIZATION GUIDE - Lancet...

Date post: 16-Jul-2020
Category:
Upload: others
View: 4 times
Download: 0 times
Share this document with a friend
30
DATA VISUALIZATION GUIDE Make the most of each graph type Use cases and pro tips Alternative options for each graph Helping You Choose the Best Visualizations for Maximum Data Impact v. 1.1, April 2014
Transcript
Page 1: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

1

DATAVISUALIZATION

GUIDE

Make the most of each graph type

Use cases and pro tips

Alternative options for each graph

Helping You Choose the Best Visualizations for Maximum Data Impact

v. 1.1, April 2014

Page 2: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

2 3

MAKE YOUR DATA CLEAR AND ACTIONABLE.

TABLE OF CONTENTS

Area chart ............................................................................................ 4

Bar graph ............................................................................................. 6

Box plot ............................................................................................... 8

Bubble graph .................................................................................... 10

Bubble grid ....................................................................................... 12

Combination chart ............................................................................ 14

Cylinder ............................................................................................ 16

Data cloud ......................................................................................... 18

Funnel ................................................................................................ 20

Gantt chart ........................................................................................ 22

Gauge ................................................................................................ 24

Graph matrix ..................................................................................... 26

Heat map ........................................................................................... 28

HiLow stock/candlestick ................................................................... 30

Histogram .......................................................................................... 32

Line chart ........................................................................................... 34

Map .................................................................................................... 36

Microchart ......................................................................................... 38

Network ............................................................................................. 40

Pareto chart ....................................................................................... 42

Pie chart ............................................................................................. 44

Polar chart/radar chart ..................................................................... 46

Scatter plot ........................................................................................ 48

Thermometer .................................................................................... 50

Waterfall ............................................................................................ 52

Weighted list ..................................................................................... 54

Create the most effective data visualizations for your business

needs and goals with this Data Visualization Guide from Lancet.

Whether you’re new to data visualization or relatively seasoned,

this catalog of examples gives you a jump-start on choosing the

right graph and honing it to perfection.

From the familiar bar chart to more complex visualizations like

network charts and polar charts, we show you 26 graph types,

built and formatted by the Lancet design experts, with pro tips

to help you gain maximum business benefit.

We hope you find this guide useful, and feel free to contact us

to learn more!

Lancet Data Sciences

info@lancetdatasciences.com952.230.7360www.lancetdatasciences.com/dashboards

Page 3: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

4 5

100K

90K

80K

70K

60K

50K

40K

30K

20K

10KOct - 12

Books

Nov - 12 Dec - 12 Jan - 13 Feb - 13 Mar - 13

Jewelry Electronics

AREA CHARTDescription

• Based on a line chart, showing layers• Shows how categories overlap• Displays comparisons through overlapping areas

Pro Tips• Useful to show volume comparisons over time• Use a stacked area to show distribution of related

measures over time• Good for trend displays

Avoid• Opaque colors• Too many metrics• Measurements that are too close in value (making it

difficult to distinguish a difference)

Use Case• Tracking multiple revenue streams over time, showing

total volume as well as distribution

Alternative / Related Visualizations• Line chart• Bar chart• Histogram• Combination: area-line / area-bar• Polar chart / radar chart

The use of distinguishable colors and semi-transparent fills allow the end-user to quickly see trends of independent values and how they compare to the other values within the same visualization.

Units Sold by Category

Page 4: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

6 7

Green Beans

Cucumbers

Carrots

Potatoes

Tomatoes

0% 7% 14% 21% 28% 35%

32%

28%

19%

15%

6%

Produce Dry GoodsDairy

$0

$12,000

$24,000

$36,000

$48,000

$60,000

#5034 #4022 #1024 #2032 #1340 #2340 #6001

BAR GRAPHDescription

• Shows values of specific categories• Compares absolute values of multiple items• Easy to interpret and compare

Pro Tips• Use stacked bar graph when comparing parts of a whole• Use to compare percentage to total of multiple items

Avoid• Graphing items with a broad numerical scale• Using too many contrasting colors• Showing zero (0) on the scale if it is not needed• Clustering a large number of items for comparison

Use Case• Comparing categories that are related to one another

(e.g. retail departments)

Alternative / Related Visualizations• Combination: bar-area / bar-line• HiLow stock / candlestick• Histogram• Gantt• Data cloud• Graph matrix• Microcharts• Cylinder• Thermometer• Pareto chart

Sorting a horizontal bar graph in a descending order allows the end-user to quickly ascertain the percentage share of one item compared to the rest.

A stacked bar graph is a great way to visualize the whole a of data element, as well as the components that make up its aggregation.

Vegetable Sales by %

Revenue by Store

Page 5: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

8 9

BOX PLOTDescription

• Shows distribution of data including minimum, maximum, median, and percentiles

Pro Tip• Use when a baseline exists for comparison

Avoid• If there isn’t a high variance in data fluctuation

Use Case• Measuring student testing across school districts

Alternative / Related Visualizations• HiLow stock / candlestick• Stacked bar chart• Combination bar-and-line chart

Student Test Scores Across Districts

100

90

80

70

60

50

40

30

20

10

0191 252 192 200

School Districts

Test

Sco

res

199 194 659 195

The box shape within the box plot represents the top three quartiles of a particular data element. The top part of the box is the first quartile, the bottom part is the third quartile and the line represents the median or second quartile. The whiskers, or high and low marks of the box plot, commonly represent the highest and lowest numbers of a data element.

In this example, the end-user can see that School District 200 has the most students that tested in the top three quartiles, while its median score is also the highest.

Page 6: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

10 11

BUBBLE GRAPHDescription

• Lets users easily analyze three different metrics with bubbles of varying sizes

• Used to perform analyses involving key business ratios

Pro Tips• If data supports it, enable drill down to view more

granularity (e.g. drill down from states to counties, etc.)• Color by category and drill down sub-category• When appropriate and if the bubble graph visualization

supports it, add time as an added dimension

Avoid• Using if there is not enough screen real estate

Use Case• Showing birth, mortality, and total population by

continent then by country

Alternative / Related Visualizations• Bubble grid• Heat map• Scatter plot• Weighted list• Graph matrix• Network

0 1 2 3 4 5 6 7

30

40

50

60

70

80

90

Fertility Rate (births per woman)

Life

Exp

ecta

ncy

(yea

rs) Africa

Americas

Asia

Europe

Oceania

0 1 2 3 4 5 6 7

30

40

50

60

70

80

90

Fertility Rate (births per woman)

Life

Exp

ecta

ncy

(yea

rs)

Americas: ArgentinaLife expectancy: 70Fertility Rate: 4Population: 28,369,799

0 1 2 3 4 5 6 7

30

40

50

60

70

80

90

Fertility Rate (births per woman)

Life

Exp

ecta

ncy

(yea

rs) Africa

Americas

Asia

Europe

Oceania

0 1 2 3 4 5 6 7

30

40

50

60

70

80

90

Fertility Rate (births per woman)

Life

Exp

ecta

ncy

(yea

rs)

Americas: ArgentinaLife expectancy: 70Fertility Rate: 4Population: 28,369,799

The beauty of a bubble graph is that the end-user can gain a lot of insight by showing only three related metrics.

Drilling into a bubble allows the end-user to see the components that make up the larger aggregate figure. This type of analysis enables the end-user to find outliers and ask further questions about the figures.

Life Expectancy and Fertility Rate by Continent and Country

Page 7: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

12 13

BUBBLE GRIDDescription

• Helps identify correlations quickly• Color and size of the bubbles identifies where the item

lies on the spectrum between two metrics (e.g. color by profit, size by revenue)

Pro Tips• Ensure data has a wide variance, otherwise bubbles will be

too similar in size

Avoid• Coloring that is difficult to discern for those with color

blindness

Use Case• Measuring performance of product categories across

different regions

Alternative / Related Visualizations• Scatter plot• Heat map• Weighted list• Data cloud

Books

Movies

Music

NW SW NC C S NE SE Web

$179,526$15,222 $351,441

Size: RevenueColor: Profit

Category: MoviesRegion: CentralRevenue: $2,500,899Profit: $275,000Profit Margin: 11%

The color and shape contrast in the bubble grid let the end-user quickly visualize and compare two metrics across multiple dimensions.

Department Performance — Regions

Page 8: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

14 15

COMBINATION CHARTDescription

• Graph that depicts any combination of bar, line, and area graphs

Pro Tips• Good for showing year-over-year comparisons• Use proper color variances with combination of graph types• Great when using a dual axis

Avoid• If the difference in scale between elements is too large• If one graph type commonly covers another (e.g. bar

covers lines)

Use Case• Measuring total website traffic compared to traffic coming

from search engines

Alternative / Related Visualizations• Pareto chart• Bar chart• Line chart• Area chart

Dual axis and combination charts like these convey the power and value of combining and trending multiple related metrics of different numerical properties and scale.

Website Traffic Analysis

Page 9: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

16 17

CYLINDERDescription

• Shape is effective for displaying progress toward a goal, or total volume

Pro Tips• If stacking items in the cylinder, use monochromatic

shading to depict a relationship

Avoid• Using unless there is a specific reason for this visualization;

use a more common visualization, like a bar chart, when applicable

Use Case• A non-profit could use a cylinder to show actual progress

against fundraising goals• The stacked visualization is useful to demonstrate the

source of each portion of the funds

Alternative / Related Visualizations• Gauge• Thermometer• Bar chart• Funnel

$0

$5,000

$10,000

$15,000

$20,000

$25,000

$30,000

$35,000

$40,000

$45,000

$50,000

$55,000

$60,000

The use of semi-transparency and a darker fill color give the illusion of volume within a container. This is a necessary feature for making this visualization effective.

Capital Campaign Fundraiser - Goal $60,000

Page 10: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

18 19

DATA CLOUDDescription

• Displays data elements as text and is sized accordingly to the value of the metric

Pro Tips• Use colors to depict which items are performing against

milestones and benchmarks, in addition to other metrics

Avoid• Using if there is similar volume in usage between items as

there will be little difference in resulting size

Use Case• Showing popularity of trending topics in the media

Alternative / Related Visualizations• Network• Heat map• Scatter plot• Bar chart

ChinaHealthSyria

ObamacareNSAGovernment Shutdown

ObamaIndiaLou Reed

ImmigrationKrugman

Education

Social Q’s New York

Trending Topics in the News

Sized by number of social media shares

Larger keywords quickly grab the attention of the end-user, while varying and alternating the colors increase legibility.

Page 11: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

20 21

FUNNELDescription

• Provides a quick, meaningful view of the incremental phases within the data

• Helps to identify potential problem areas

Pro Tips• Ensure phases are in incremental order from highest to lowest

Avoid• Using if there are no incremental phases • Using when data values are too close to one another

Use Case• Measuring different phases of a sales cycle, starting from

an initial approach to closing the sale

Alternative / Related Visualizations• Cylinder• Stacked bar chart• Waterfall• Pie chart• Polar chart / radar chart

117

Closing Ratio: 33.6%

156

202

254

284

348

Prospects Initial Appointments Qualify Prospect Presentation

Address Prospect’s Objectives Close and Sign Customer

Use the inherit shape and properties of a funnel in order to effectively utilize this visualization. Funnels have a natural filtration effect to them. This is important to remember when using this visualization.

Sales Prospects and Closing Rate

Page 12: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

22 23

GANTT CHARTDescription

• Type of bar chart that illustrates a project schedule• Shows tasks, dependencies, and milestones

Pro Tips• Color code types of tasks, phases, difficulty of workload,

and more — for easy visual reference

Avoid• Using on a project with an exceptionally large number of

tasks — information can get lost

Use Case• Used often in information technology and business

services for tracking project tasks and goals

Alternative / Related Visualizations• None

Showing tasks and dates in a matrix layout is a very easy thing for the end-user to understand. Adding stylistic components through color and design transforms something simple into something simple and appealing.

Market Research

Define Specifications

Overall Architecture

Project Planning

Detail Design

Software Development

Test Plan

Testing and QA

User Documentation

Aug 16 23

Missed CompleteOff Track

30 13 20 27 11 18 25 8 15 22Sep 6 Oct 4 Nov 1

Project Schedule

On Track

Page 13: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

24 25

GAUGEDescription

• Great to measure a single metric• Useful when it has a metric selector to change the value

shown in the gauge• Simple status indicator displays a needle that moves

within a range of numbers

Pro Tips• Make the measurement goal visually obvious• Use colors to show varying levels of performance• Use a scale that accurately represents the goal

Avoid• Using different scales when comparing multiple gauges• Using more than one needle per gauge

Use Case• A sales force may use a gauge to depict how close they

are to hitting goals and benchmarks

Alternative / Related Visualizations• Thermometer• Cylinder• Bar chart

$8,000,000 $16,000,000

$0 $24,000,000

Target:$20,000,000

WEST CENTRAL EAST

For a gauge to be effective, it is important to measure against benchmarks or goals. Furthermore, measure across different elements of a dimension, like specific geographic regions vs. the aggregate of all regions.

Actual Revenue vs. Target Revenue

Page 14: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

26 27

GRAPH MATRIXDescription

• Quickly analyze trends across multiple dimensions• Like microcharts, it offers a high-level view of a metric over

multiple categories

Pro Tips• Use like graph types across the matrix to identify true

comparisons• Use line or bubble graphs for optimal visualization

Avoid• Using unnecessary elements that may prevent

identification of the patterns

Use Case• Measuring healthcare member demographics and

utilization over time

Alternative / Related Visualizations• Bar chart• Line chart• Area chart• Microchart

The effective use of simplicity and clean layout allows the end-user to easily analyze trends across different dimensions. Patterns emerge that would otherwise need to be determined through a combination of visualizations.

Lifetime Member Utilization

Page 15: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

28 29

HEAT MAPDescription

• Enables understanding of the impact of several factors simultaneously

• Metrics are represented by the size and color of each labeled rectangle

• Highly interactive: can pivot to remove attributes to create new comparisons, format colors, refresh to its original state, view deleted items, and use search functionality

Pro Tip• Use red, yellow, and green to indicate performance• Use monochromatic banding when performance isn’t

being measured

Avoid• Using unnecessary elements that may prevent

identification of the patterns• Using when metrics are unrelated• Using when metrics have too great or too small a variance

Use Case• Often used by the financial services Industry to review

portfolios

Alternative / Related Visualizations• Dual-axis combination graph when data has a high variance• Weighted list to view in a more linear fashion• Data cloud• Network

By using monochromatic shading, the user isn’t as inclined to see “good” or “bad” in the cells as much as they are to see volume of density of specific data elements.

Using a red-yellow-green gradient is a natural way to portray negative and positive indicators within a visualization.

Healthcare Gender & Age Demographics

Financial Portfolio by Region

Page 16: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

30 31

HILOW STOCK/CANDLESTICKDescription

• Shows minimum and maximum with the fluctuation in between

Pro Tip• Use when there is a large number of data points to create

a more beneficial analysis

Avoid• If there is not a high variance in data fluctuation

Use Case• Showing how stocks open, close, and fluctuate over a

given time period

Alternative / Related Visualizations• Box plot• Histogram• Line chart

20

40

60

80

100

120

140

0Jan 7 Jan 11 Jan 15 Jan 19 Jan 23 Jan 27

CloseHigh

Open

Low

Color and plot shapes are an intuitive way to show growth and trends over time.

Widgets, Inc. High Low Stock Trend

Page 17: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

32 33

HISTOGRAMDescription

• Plots density, frequency, and probability of a continuous variable

Pro Tip• Use single color for bars

Avoid• Unnecessary labels

Use Case• Visually depicting units sold over time for a particular item category

Alternative / Related Visualizations• Bar chart• Line chart• Area chart• Microchart

The most important aspect of a histogram is its shape and trend. Labels take a backseat to the flow of the visualization.

Units Sold

Page 18: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

34 35

LINE CHARTDescription

• Series of data points connected by curved or straight line segments• Shows trending over time• Good for quick interpretation and comparison

Pro Tips• Use different shapes of markers and colors to distinguish

one series from another• Use subtle horizontal grid lines for the y-axis to avoid

distracting from the data points• Use different line styles to show baselines, benchmarks,

goals, etc.• If showing a trend is more important than showing

detailed values, use minimal styling to create a “sparkline” type of visualization

Avoid• Using markers when comparing multiple items over many

data points• Comparing multiple items with similar values

Use Case• Comparing multiple measures over time

Alternative / Related Visualizations• Area chart• Bar chart• Polar chart / radar chart• Graph matrix• Combination: line-area / line-bar• Pareto chart• Microchart

Varying color and plot shapes allows the end-user to easily cypher one series from the next, even when the values are close in scale.

Jan-13

50%

40%

30%

20%

10%

0%Feb-13 Mar-13

Gross Margin %

Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 Oct-13 Nov-13 Dec-13

BooksMusic Movies

Page 19: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

36 37

MAPDescription

• View by geographies or with overlaid bubbles, sized according to metric data for effortless overview of geography comparison (e.g. state map, country map, store layout, etc.)

Pro Tips• Color code shapes to depict performance comparison• Consider differently-styled map pins to show different

categories (e.g. round, square, triangular pin, etc.)

Avoid• Using an entire map if only a specific subset needs to

be presented (e.g. use only the Northeast instead of the entire U.S. map)

Use Case• Healthcare system plotting different locations based on

service types (e.g. clinic uses square pin, hospital uses round pin, etc.)

• Color coding counties based on presidential election results

Alternative / Related Visualizations• None

Different map pin styles allow the user to differentiate one type of health provider from another.

Using existing color paradigms, like political

affiliation, is a natural and intuitive way for the end-user to gain deeper

understanding of your visualization.

Using gradients that follow the color wheel is an effective way to show density, especially on a map visualization.

Healthcare Providers

Election Results by US County

Population Density

Page 20: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

38 39

Regional Revenue Tracking

Southwest

Southeast

South

Northwest

Northeast

Mid-Atlantic

Central

$10,234

$34,000

$53,200

$28,635

$42,019

$15,287

$37,298

20%

17%

32%

27%

28%

31%

18%

$89,000

$102,198

$130,187

$83,209

$183,298

$93,207

$108,000

Region Revenue 12 Month Trend Revenue TargetUnits Sold Current Month

Revenue% of Previous

YearRevenue

YTDMin: 1200Max: 2870

Low Medium High

Min: 987Max: 3024

Min: 1189Max: 4198

Min: 832Max: 1645

Min: 1567Max: 4870

Min: 732Max: 2570

Min: 857Max: 2013

MICROCHARTDescription

• Fits several intuitive chart formats into one area in combinations and formats of your choice (e.g. sparkline, bullet, and bar charts)

• View metric performance over time, specific values, comparison-to-goal data, and more — at a glance

• Small in design and dense in data

Pro Tips• Great to measure KPI trending• Best used for trending over time

Avoid• When needing to depict more than a summary-level

presentation

Use Case• Tracking KPIs across different geographies or product

categories

Alternative / Related Visualizations• Bar chart• Line chart• Area chart• Histogram• Graph matrix

Combining several small visualizations into one is not an easy thing to do. The visualization can become clogged and appear busy. This microchart shows that it is possible to combine several visualizations while still providing valuable insight and maintaining legibility.

The histogram part of the microchart allows the end-user to visualize the trend of a metric, as well as see it’s high and low in plain text.

This bullet chart works much like a box plot, with the exception that it doesn’t need to show quartiles. The dark gray indicates a low range of values, the middle gray indicates a medium range of values, and the light gray indicates a high range of values. The solid, vertical line represents a goal or benchmark, while the blue bar indicates the actual value of the metric. This example shows that the metric fell short of its goal and is within the medium range of acceptable values.

A line graph that is minimalistic in style is often called a “sparkline.” This sparkline enables the end-user to see the trend

of the metric without distracting them with additional clutter.

Min: 1200Max: 2870

Page 21: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

40 41

NETWORKDescription

• Great to depict relationships between related items, using nodes (circles) of varying sizes and lines of varying thickness that represent the relationships between the nodes

• Size of nodes and thickness of lines represent metric values

Pro Tip• Use colors to distinguish relationships and patterns

Avoid• Using if there are only small sets of data • If relationship connections are irrelevant

Use Cases• Retail stores demonstrating customer buying habits,

especially in terms of combinations (e.g. “customers also bought” visualizations)

• Tracking airline flight path metrics• Viewing relationships on LinkedIn or other social media

Alternative / Related Visualizations• Heat map• Graph matrix• Scatter plot

Showing product affinity and buying relationships effectively can be a daunting challenge. The network visualization is a great way to solve this problem. By both color coding and adding weight to the affinity lines, the end-user can quickly grasp relationships and their performance in relation to one another.

Product Affinity

Page 22: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

42 43

0

10

20

30

40

50

60

0%

20%

40%

60%

80%

100%

iPhone Samsung HTC Motorola Nokia LG

Num

ber o

f Ret

urns

% o

f Tot

al R

etur

ns

Note on MetricsAxis Y1: Actual AmountsAxis Y2: Running Percent = Running Amount/Total Amount

PARETO CHARTDescription

• Contains both a bar and a line graph• Values are represented by descending bars• Running % to total is represented by the line• Depicts percent to the total while displaying actual values

Pro Tips• Use to compare percentage to total of multiple items• Use subtle horizontal grid lines for the y-axis to avoid

distracting from the data points• Use different line styles to show baselines, benchmarks,

goals, etc.• If showing a trend is more important than showing

detailed values, use minimal styling to create a “sparkline” type of visualization

Avoid• Using too many contrasting colors• Graphing items with a broad numerical scale• Showing zero (0) on the scale if it is not needed• Clustering a large number of items for comparison• Using data markers when comparing multiple items over

many data points

Use Case• A retail store graphing the most commonly returned items based on defects

Alternative / Related Visualizations• Pie chart• Stacked bar chart

This valuable and easy to understand visualization is great for showing the age-old “80-20 rule.” By graphing absolute values on the bars and calculating a running percent to total on the line, the end-user can see where the 80-20 split occurs.

Smart Phone Returns From Defects

Page 23: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

44 45

PIE CHARTDescription

• Shows proportions of categories to the whole

Pro Tips• Be aware of chart size when determining number of

categories for comparison• Be aware of color combinations; avoid distracting colors• Show percentage to the total as well as the actual values

Avoid• Using if data contains multiple categories of similar size• Using when there are too many categories to compare

(for example, do not exceed five or six)

Use Case• Comparing census demographics in a specified geography

Alternative / Related Visualizations• Polar chart / radar chart• Stacked bar chart• Stacked area chart• Funnel• Cylinder

White - 333

19%

6%

25%37%

13%

African American - 225

American Indian - 54

Asian - 114

Hispanic - 117

This example of a pie chart does a great job at both showing the percentage share of a pie slice, as well as its absolute value. The use of color from blue to green is a natural color progression and as a result, easy for the end-user to follow.

Population by Ethnicity

Page 24: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

46 47

POLAR CHART/RADAR CHARTDescription

• Grid lines emanate from a center point, representing larger values for each additional outer line

• Data markers on the grid lines are connected by straight lines, resulting in shapes that visually depict data concentrations

Pro Tip• Shade with a semi-transparent color to show overlap

Avoid• Unless data is exceptionally suited for this representation• If data is consistently the same• Using if data contains numerous categories

Use Cases• Plotting common retail figures for various product

categories within a store• Showing multiple figures and their share in relation to one

another over an extended period of time

Alternative / Related Visualizations• Pie chart• Scatter plot• Bubble grid

This example quickly illustrates the relationship between two metrics across multiple categories. A larger, more spread-out shape would show that a metric is performing quite well. A smaller, condensed shape would illustrate that the metric could likely do better.

This type of visualization is a

great way to show the share of multiple

metrics over time. Florence Nightingale

provided the most famous example of

this visualization, diagramming the

causes of mortality in the military field

hospital where she worked.

Unit Performance by Product Category

Page 25: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

48 49

SCATTER PLOTDescription

• Shows two metrics in a set of data• Plots one metric on each axis• Shows the effect of one metric on the other• Shows concentration as well as outliers within a large dataset

Pro Tip• Useful for a large body of data containing two related metrics

Avoid• Trying to depict precise reporting

Use Case• A healthcare organization plotting patient utilization rates

versus claim cost

Alternative / Related Visualizations• Bubble grid• Microchart• Interactive bubble graph• Polar chart / radar chart• Heat map

Util

izat

ion

%

Claim Cost

75%

65%

55%

45%

35%

25%

15%

5%

$5,000 $10,000 $15,000

Scatter plots are an excellent way to show patterns and groupings of things. On the flip side of that coin, it is also a great way to show outliers or data points that don’t group with others. This type of analysis allows the end-user to look further into these data points and analyze why they are different from the rest.

Patient Utilization Rates / Claim Costs

Page 26: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

50 51

THERMOMETERDescription

• Like gauge and cylinder, the thermometer visualization is effective for measuring the progress of a single metric toward a goal

• Arguably better than a gauge because the goal is at the top rather than at the side

Pro Tips• Use threshold color to indicate performance

Avoid• Using only red due to its negative connotation

Use Case• Tracking department sales goal in a retail environment

Alternative / Related Visualizations• Bar chart• Cylinder• Gauge

The classic thermometer shape makes it intuitive for the end-user to see how a metric can grow.

March Jewelry Sales Goal Progress

$10K

$20K

$30K

$40K

$50K

$60K

$70K

$80K

$90K

$100K

$110K

$120K

Page 27: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

52 53

$0

$28,000

$56,000

$84,000

$112,000

$140,000

Revenue Damaged LaborCosts

MaterialCosts

Refurbished Sales

Profit

$125k ($10k)

($30k)

($15k)

$34k $104k

WATERFALLDescription

• This visualization is great for “what if” analyses (e.g. how sales could affect returns)

• Shows how different aspects of the business positively or negatively affect the bottom line

Pro Tips• Specify color for positive and negative values across metrics• Use for theorizing possible outcomes

Avoid• Using as a true predictive analytic tool

Use Case• A company adjusting their income and cost stream

projections in order to see how it would affect their bottom line

Alternative / Related Visualizations• Funnel

The use of different colors supports the ebb and flow of the descending and ascending bars. Typically, one might use green to indicate growth and red to indicate loss.

July Shoe Sales

Page 28: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

54 55

Midwest Unemployment Rate and Population

WEIGHTED LISTDescription

• Combines the visual impact of a heat map with the intuitive, linear nature of a table

Pro Tips• Use red, yellow, and green to indicate performance• Use monochromatic banding when performance isn’t

being measured

Avoid• Using with a long list that would be better presented in

the compact nature of a heat map to avoid scrolling• Two-color transitions unless using monochromatic banding• Using when metrics are unrelated• Using when metric variance is too high or too low

Use Case• Measuring population and unemployment rate for a

geographic region

Alternative / Related Visualizations• Heat map• Data cloud• Bubble grid• Scatter plot

State UnemploymentRate Population

North Dakota

South Dakota

Nebraska

Iowa

Minnesota

Kansas

Michigan

Wisconsin

Indiana

Ohio

Illinois

2.7%

3.7%

3.9%

4.6%

4.8%

5.6%

6.5%

7.5%

7.5%

8.9%

9.0%

699,628

833,354

1,855,525

3,074,186

5,379,139

2,885,905

5,726,398

6,537,334

11,544,225

12,875,255

9,883,360

Many end-users love tables. By adding color to show performance, and proportionally-sized rectangles to indicate size, the end-user can gain additional insight to the figures — without losing the linear, easy-to-follow layout of a table.

Page 29: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

56 57

LEARN MORE!ABOUT LANCET

ABOUT THE LANCET DESIGN TEAM

This guide is only the tip of the iceberg when it comes to

visualization best practices that can enhance your business

strategies.

Learn more via our blog, www.lancetdatasciences.com/blog

Including:

• Details that can make or break the impact of your visualization

• Your target audience: three things you cannot afford to forget

• Common errors that make you look like a rookie

The Business Intelligence (BI) specialists at Lancet℠ help IT

professionals and business leaders with strategic leadership,

hands-on project implementation and professional services

across the entire lifecycle of the BI program. Solve your most

complex challenges using the experience and knowledge of the

Lancet team to provide options and deliver solutions.

• Focused on BI since 1997• Recipient of numerous vendor, partner and

industry awards• Hundreds of successful BI projects completed• Over 1 million hours of services delivered• More than 100 consultants serving clients worldwide

The Lancet Design Team is a group of design professionals

dedicated to the craft of designing and implementing web and

mobile Business Intelligence dashboards. Their role is to deliver

concept and production dashboards that exceed industry

expectations for usability, user adoption and general appeal.

THE LANCET GUIDE SERIESData Visualization Guide

Guide to Basic Analytical TechniquesDashboard and Mobile Survival GuidePlatform Administration Field Guide

Download at:lancetdatasciences.com/lancet-bi-guide-series

COMING SOON

Page 30: DATA VISUALIZATION GUIDE - Lancet Indialancetindia.com/.../lancet-data-visualization-guide-read.pdf · 2015-02-12 · 1 DATA VISUALIZATION GUIDE Make the most of each graph type Use

58

11980 Portland Avenue South • Burnsville, Minnesota 55337 • 952.230.7360 • www.lancetdatasciences.com

Los Angeles | Minneapolis | Charlotte | New York | Bangalore

Contact Lancet for design consulting, custom visualizations or dashboard development.

Learn more:

www.lancetdatasciences.com/dashboards

Maximizing Return on Data ®

[email protected] | 952.230.7360


Recommended