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Good graph

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Good graph

1. 1. Good Graphs
2. 2. A picture is worth thousand words
3. 3. Chart or a Graph <ul><li>Remember, give a Graph / Chart only if </li></ul><ul><ul><ul><li>You want avoid thousand words </li></ul></ul></ul><ul><ul><ul><li>Clarify not confuse </li></ul></ul></ul><ul><ul><ul><li>Influence the viewer </li></ul></ul></ul><ul><ul><ul><li>Convey a bigger picture </li></ul></ul></ul><ul><ul><ul><li>Less is more with graphs </li></ul></ul></ul>
4. 4. How to create a good graph <ul><li>Ascertain the purpose of the chart. </li></ul><ul><li>Identify the variables and their relationships. </li></ul><ul><li>Zero in on to the chart type that best suits to visualize the data to show the big picture </li></ul><ul><li>Check – does it show a big picture ? </li></ul><ul><li>Think from the audience view point </li></ul><ul><li>Hence the need is to know what is a good chart and understand types of charts to present data </li></ul>
5. 5. Components - X axis <ul><li>Y Axis – Customary to use dependant variables. </li></ul><ul><li>Must be labeled to show range </li></ul><ul><li>Title of Y Axis must be clear </li></ul>
6. 6. Components – Y axis <ul><li>X axis – Customary to use independent variables like time, months, qtrs, years etc. </li></ul><ul><li>Must be labeled to show range </li></ul><ul><li>Title of X axis must provided if the variables on the x axis are not very obvious </li></ul>
7. 7. Components - Title <ul><li>A meaningful title that explains what the graph is all about </li></ul>
8. 8. Components – data labels Data labels are values for easy understanding of data
9. 9. Components - Legend Legend is the key to the data plotted
10. 10. Good vs. Bad Graphs <ul><li>Good graphs will: </li></ul><ul><ul><li>Give a clear visual display of the point you are trying to make </li></ul></ul><ul><li>Bad graphs will: </li></ul><ul><ul><li>Confuse the reader </li></ul></ul><ul><ul><li>Does not make any sense </li></ul></ul><ul><ul><li>Misinterpret data Visually </li></ul></ul>
11. 11. Types of Simple Graphs <ul><li>Line Charts </li></ul><ul><li>Area Charts </li></ul><ul><li>Column Charts </li></ul><ul><li>Bar Charts </li></ul><ul><ul><li>Segmented Bar / Column Charts </li></ul></ul><ul><ul><li>100% Segmented Bar/Column Charts </li></ul></ul><ul><li>Pie Charts </li></ul><ul><li>Doughnut Charts </li></ul>