general.hist_log: Function to create histograms to check for the necessity of a...
In jhooge/BioViz: BiomarkerVizard

Description Usage Arguments Value Author(s) Examples

The function creates two histograms, one of the original data and one of the log-tramsformed data. If desired, a second time point can be added, so that a plot with four histograms is created.

1 2	general.hist_log(x, by = NULL, file.name, nbars = 15, title = "", xlab = "", col.orig = "lightblue", col.log = "lightyellow")

`x`	Numeric vector (Required)
`by`	Character or factor vector of the same length than 'x' to the time, if two time points should be analyzed. should contain only two levels (Default: Null)
`file.name`	begining of the name for the PNG output files (without '.png' ending) (Required)
`nbars`	number of bars for the histograms (Default: 15)
`title`	Title of the plot (Default: ”)
`xlab`	Label for the x-axis (Default: ”)
`col.orig`	Color of the histogram bars of the original values (Default: 'lightblue')
`col.log`	Color of the histogram bars of the log-transformed values (Default: 'lightyellow')

A .png file with two or four histograms and a numeric vector with the size of the .png

Sebastian Voss, Adam Skubala

## Not run: 
x <- exp(rnorm(1000))
by <- factor(rep(c('baseline','day 30'), each=500), 
             level=c('baseline','day 30'))
general.hist_log(x=x, by=by, file.name='test_hist',
         title='Test Historgram', xlab='Measurement')

## End(Not run)