Accepts one or more vectors of numbers and groups into class intervals as a frequency plot.

ch.Freq vec

Example

ch.Set('Style' 'Boxed')('Head' 'Frequency Plot')
ch.Set 'classint' 5
ch.Freq 0.05×(+/?200 20½100)
PG„ch.Close

The class interval defaults to 1, but will be increased automatically to keep the total number of ‘buckets’ below 40. You can interleave multiple datasets here by calling ch.Freq with a multi-column argument or setting the ‘categorise by’ property. This is often a good way to check overlapping distributions, for example a set of samples before and after a ‘10% extra’ special offer.

See also ...
Frequency Plot style