good graph
Post on 13-Sep-2014
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DESCRIPTION
How to draw a Good GraphTRANSCRIPT
A picture is worth thousand words
4 Stages of Life
Chart or a Graph
Remember, give a Graph / Chart only if
You want avoid thousand words Clarify not confuse Influence the viewer Convey a bigger picture Less is more with graphs
How to create a good graph
Ascertain the purpose of the chart.Identify the variables and their relationships.Zero in on to the chart type that best suits to visualize the data to show the big pictureCheck – does it show a big picture ? Think from the audience view point
Hence the need is to know what is a good chart and understand types of charts to present data
Components – X axis
Sales of East Zone by QTR - 2009
20.427.4
90
20.430.6
38.6 34.6 31.6
0102030405060708090
100
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
Quarters in 2009
Sale
s in
Rup
ees
EastWest
• X axis – Customary to use independent variables like time, months, qtrs, years etc.
• Must be labeled to show range
• Title of X axis must provided if the variables on the x axis are not very obvious
Components - Y axis
Sales of East Zone by QTR - 2009
20.427.4
90
20.430.6
38.6 34.6 31.6
0102030405060708090
100
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
Quarters in 2009
Sale
s in
Rup
ees
EastWest
• Y Axis – Customary to use dependent variables.
• Must be labeled to show range• Title of Y Axis must be clear
Components - Title
Sales of East Zone by QTR - 2009
20.427.4
90
20.430.6
38.6 34.6 31.6
0102030405060708090
100
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
Quarters in 2009
Sale
s in
Rup
ees
EastWest
A meaningful title that explains what the graph is
all about
Components – data labels
Sales of East Zone by QTR - 2009
20.427.4
90
20.430.6
38.6 34.6 31.6
0102030405060708090
100
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
Quarters in 2009
Sale
s in
Rup
ees
EastWest
Data labels are values for easy understanding of data
Components - Legend
Sales of East Zone by QTR - 2009
20.427.4
90
20.430.6
38.6 34.6 31.6
0102030405060708090
100
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
Quarters in 2009
Sale
s in
Rup
ees
EastWest
Legend is the key to the data plotted
Good vs. Bad Graphs
Good graphs will:
Give a clear visual display of the point you are trying to make
Bad graphs will:
Confuse the readerDoes not make any senseMisinterpret data Visually
Types of Simple Graphs
Line Charts
Area Charts
Column Charts
Bar Charts Segmented Bar / Column Charts 100% Segmented Bar/Column Charts
Pie Charts
Doughnut Charts
