Plotting histograms
Histograms are a very popular method of discovering the frequency distribution of a set of continuous data. In a histogram, data scientists usually show the quantitative variable along the x axis and frequency of that variable along the y axis. A few key features of histograms that make it very useful are as follows:
- Only numerical data can be plotted
- Huge datasets can easily be plotted
- The x axis is usually used as bins or intervals of quantitative variables
- In this recipe, we will see how to plot histograms using GRAL
Getting ready
- To use GRAL to plot histograms, we need the example applications provided with the library in the form of Jar files. These example applications can be downloaded from http://trac.erichseifert.de/gral/wiki/Download ...
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