GroIMP can create a histogram over a column of a dataset, to use this the histogram bins have to be defined.

It is possible to have histograms for multiple columns in the same plot in different colors.

To define the histogramBins the function setHistogramBins is used with the following arguments:

1. The column which is suppose to be used (identified numerically starting with 0)
2. The minimum value
3. The maximum value
4. The number of buckets.

For example:

dataset("your_dataset").setHistogramBins(0,0.5,1.0,8)

To create a histogram in rgg the chart command with the additional parameter HISTOGRAM is used:

chart(dataset("your_dataset"),HISTOGRAM);