# Mar: Set Plot Margins and Distances In DescTools: Tools for Descriptive Statistics

## Description

Plot margins are normally set by `par("mar")`. However one is forced to always define all margins, even if just one should be altered. The convenience function `Mar()` allows to set one single margin (or several) while leaving the others unchanged.

`Mgp()` does the same for the distances of axis title, labels and line.

## Usage

 ```1 2 3``` ```Mar(bottom = NULL, left = NULL, top = NULL, right = NULL, outer = FALSE, reset = FALSE) Mgp(title = NULL, labels = NULL, line = NULL, reset = FALSE) ```

## Arguments

 `bottom` the bottom margin, if set to `NULL` the current value will be maintained. `left` the left margin, if set to `NULL` the current value will be maintained. `top` the top margin, if set to `NULL` the current value will be maintained. `right` the right margin, if set to `NULL` the current value will be maintained. `outer` logical, defining if inner margins (`par("mar")`) or the outer margins (`par("oma")`) should be set. Default is `FALSE`, meaning that the inner margins will be concerned. `reset` if set to `TRUE` the margins are reset to the defaults (respecting `outer`). Other arguments are ignored. `title` margin line for the axis title (default 3) `labels` margin line for the axis labels (default 1) `line` margin line for the axis line (default 0)

## Details

Running `Mar()` without any arguments will return the current settings, either `par("mar")`, when outer is set to `FALSE` or `par("oma")` for `outer = TRUE`.

## Author(s)

Andri Signorell <andri@signorell.net>

`par`
 ```1 2 3 4 5``` ```# largen the left margin only Mar(left=10.1) # or as alternative: Mar(, 10.1) Mgp(title=6) # ylab must be placed a little further to the left barplot(1:7, names=levels(d.pizza\$driver), horiz=TRUE, las=1, ylab="driver", col=Pal("Helsana")) ```