multi.hist {psych} | R Documentation |
Given a matrix or data.frame, produce histograms for each variable in a "matrix" form. Include normal fits and density distributions for each plot.
The number of rows and columns may be specified, or calculated. May be used for single variables.
multi.hist(x,nrow=NULL,ncol=NULL,density=TRUE,freq=FALSE,bcol="white", dcol=c("black","black"),dlty=c("dashed","dotted"), main="Histogram, Density, and Normal Fit",breaks=21,...) histBy(x,var,group,density=TRUE,alpha=.5,breaks=21,col,xlab, main="Histograms by group",...)
x |
matrix or data.frame |
var |
The variable in x to plot in histBy |
group |
The name of the variable in x to use as the grouping variable |
nrow |
number of rows in the plot |
ncol |
number of columns in the plot |
density |
density=TRUE, show the normal fits and density distributions |
freq |
freq=FALSE shows probability densities and density distribution, freq=TRUE shows frequencies |
bcol |
Color for the bars |
dcol |
The color(s) for the normal and the density fits. Defaults to black. |
dlty |
The line type (lty) of the normal and density fits. (specify the optional graphic parameter lwd to change the line size) |
main |
title for each panel |
xlab |
Label for the x variable |
breaks |
The number of breaks in histBy (see hist) |
alpha |
The degree of transparency of the overlapping bars in histBy |
col |
A vector of colors in histBy (defaults to the rainbow) |
... |
additional graphic parameters (e.g., col) |
William Revelle
bi.bars
for drawing pairwise histograms
multi.hist(sat.act) multi.hist(sat.act,bcol="red") multi.hist(sat.act,dcol="blue") #make both lines blue multi.hist(sat.act,dcol= c("blue","red"),dlty=c("dotted", "solid")) multi.hist(sat.act,freq=TRUE) #show the frequency plot multi.hist(sat.act,nrow=2) histBy(sat.act,"SATQ","gender")