## Ordinates for Probability Plotting

## Usage

    ppoints(n)

## Arguments

`n` | either the number of points generate or a vector of observations.

## Description

This generates the sequence of points `(1:m - 0.5)/m` where `m` is either `n`, if `length(n)==1`, or `length(n)`. It is used in `qqplot`, `qqnorm` to generate the set of probabilities at which to evaluate the inverse distribution.

## See Also

`qqplot`, `qqnorm`.

## Examples

    ppoints(4)
    ppoints(10)

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