# Categorical Graphs

## Key Questions

• Overall, I think the decision to use a bar or pie chart is a personal choice. If you are using graphs as part of a presentation, focus on the overall story you are trying to share with the graphical charts and images.

Below is the abbreviated guideline I use in evaluating whether to use a bar or pie chart:

• Bar Chart when noting trended performance (e.g., say, over time)
• Pie Chart when showing distribution of the whole

Example :
Let's say you want to track how you spend your money. And this month you spent $1,000. If you want to illustrate how you spent the$1,000 by category (e.g., food, clothing, gasoline), then a pie chart may make the most sense. However, if you want to display the trend for monthly spend over time (e.g., the past 6 months), then a bar chart may be more optimal.

Important characteristics of a "Pie Chart"

#### Explanation:

Before build a "Pie Chart" we need to have some important things.
we need to have:

TOP 5 IMPORTANT ELEMENTS

1. Two or more data.
2. Choose perfect colors to see easly our data.
3. Put a head title in front of our chart.
4. Put a legend in your chart (left or right)
5. Add a sentence that describe the chart, at the bottom of our chart. (short one)

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