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So we have learned how to draw up a judge and a doughnut jar.

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And I have told you that we should.

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A white pie charts and donor charts.

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Let me add that my point in this we do.

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So here's a really pie chart showing the market chart of four different suppliers.

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My question to you is can you identify which is the biggest supplier from this graph.

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So most people say that supplier B is the biggest one which is this one.

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And if you have to estimate the proportion of market share of their supplier probably 40 percent 35

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percent or something like that.

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So that's the point I'm trying to make.

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First it is very difficult to find out which is the biggest supplier.

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And secondly it is very difficult to find out what is the actual contribution of each supplier by just

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looking at the size of each slice of the pie.

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Let me show you the better way of drawing this graph

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Do you notice the difference.

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The same information which would be depicted using that pie chart is depicted here.

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And it is very clear and efficient.

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You can see that supply it is actually the biggest supplier instead of supplier B.

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When you look at the 3D version of a pie chart one of the issues in a 3D vision is to make it look 3-D.

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This part is made smaller to make it look farther.

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In fact this slice of the pie is larger than this slice of the pie.

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Also maybe by using data labels you could identify which was bigger.

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But but this bar chart is making it very easy for our eyes to compare the end point.

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So it is making it helpful to not just find out which segment is the largest but also how incrementally

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larger each segment is from the other so whenever you're thinking of creating a pie chart take a pause

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and ask yourself like always draw a bar chart along with a pie chart and compare which one of these

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is conveying your message more clearly.

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I am pretty sure that always a bar chart is the graph to go ahead and you will not lose any information

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while transforming a pie chart into a bar chart.

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The second graph that we learned was a donor jug and this is the chart that you should not use.

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As I told you that it is difficult for our eyes to compare these angular distances in a pie chart.

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Similarly in this donor chart it is difficult for our eyes to compare these outlines.

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Moreover if you have a number of categories or sections in a art it makes it even more difficult.

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If you add another category to this that will increase the Italians to another level.

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So just as pie chart try to avoid donor charts.

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If you have multiple categories go with a bar chart with multiple cities too.

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Although we have told you how to draw a pie chart and do not chart when you have the option of drawing

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one try to avoid it and draw a bar chart.

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If you are given a pie chart and a donor chart and you have to take a decision build on it take extra

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caution and look at the data so that your clear which category is contributing homage.