multi.hist {psych} R Documentation

## Multiple histograms with density and normal fits on one page

### Description

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.

### Usage

```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",...)
```

### Arguments

 `x` matrix or data.frame `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 `...` additional graphic parameters (e.g., col)

### Author(s)

William Revelle

`bi.bars` for drawing pairwise histograms

### Examples

```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)
```

[Package psych version 1.4.5 Index]
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