31 How To Label Graphs

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How to label a chart. This example shows how to add a title and axis labels to a chart by using the title xlabel and ylabel functions.

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The vertical bar or column graph remember graphs allow for comparisons bar graphs allow you to make more than one comparison using the same graph.

How to label graphs. For example in the pie chart below without the data labels it would be difficult to tell that coffee was 38 of total sales. In the mathematical discipline of graph theory a graph labelling is the assignment of labels traditionally represented by integers to edges andor vertices of a graph. You can put words into images more easily by making a labelled chart complete with a.

Data labels make a chart easier to understand because they show details about a data series or its individual data points. Dont forget to include units of measure called scale so readers can understand each quantity represented by those axes. Create simple line plot.

Formally given a graph a vertex labelling is a function of to a set of labels. To properly label a graph you should identify which variable the x axis and y axis each represent. Here i decided to compare both session number and gender on the same graph note on the graph i labeled the x axis and the y axis.

A graph with such a function defined is called a vertex labeled graphlikewise an edge labelling is a function of to a set of labels. Finally add a title to the graph usually in the form y axis variable vs. It also shows how to customize the appearance of the axes text by changing the font size.

Add title and axis labels to chart. Labelling a chart is one of the best ways to organize and give emphasis to the contents and interpretation of a particular chart.

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