Hi,
i think there is a mistake in histogram function of discriptive package.
The histogram must have to be modify by frequence/amp.
this part begining on line 636:
/* frequency table */
fr: float(continuous_freq(m,my_nclasses)),
if member(my_frequency, ['relative, 'percent])
then fr: [first(fr), second(fr) / apply("+", second(fr))],
if my_frequency = 'percent
then fr[2]: fr[2] * 100.0,
amp: fr[1][2]-fr[1][1],
must be replaced by
/* frequency table */
fr: float(continuous_freq(m,my_nclasses)),
amp: fr[1][2]-fr[1][1],
if member(my_frequency, ['relative, 'percent])
then fr: [first(fr), second(fr) / apply("+",
second(fr))/amp],
if my_frequency = 'percent
then fr[2]: fr[2] * 100.0,
It doesn't change the histogram but it is necessary to plot probability-
density on the graph.
Dominique SOUDIERE
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