groupHist: Histogramm for classes

In berryFunctions: Function Collection Related to Plotting and Hydrology

Description Usage Arguments Details Value Author(s) See Also Examples

View source: R/groupHist.R

Description

Improvement of tapply(x, g, hist) with x and g taken from a data.frame

Usage

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groupHist(df, x, g, xlab = "", ylab = "", las = 1, main = NULL,
  unit = NA, ...)

Arguments

Details

Uses split to categorize into groups.

Value

NULL, used for plotting

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2015

See Also

hist, tapply

Examples

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groupHist(chickwts, weight, "feed", col=2)
groupHist(chickwts, "weight", "feed", col=2, unit="grams at age 6 weeks")
groupHist(chickwts, weight, feed, col=2, breaks=20, main="Hi there")
groupHist(iris, Petal.Width, Species)