# Studentized Range Distribution in R (2 Examples) | ptukey & qtukey Functions

In this tutorial, I’ll explain how to apply the Studentized Range distribution functions in R.

Here’s how to do it.

## Example 1: Studentized Range Cumulative Distribution Function (ptukey Function)

Example 1 shows how to draw a plot of the Studentized Range cumulative distribution function (CDF) in R:

```x_ptukey <- seq(0, 30, by = 1) # Specify x-values for ptukey function y_ptukey <- ptukey(x_ptukey, nmeans = 5, df = 2) # Apply ptukey function plot(y_ptukey, type = "o") # Plot ptukey values``` Figure 1: CDF of Studentized Range Distribution in R.

## Example 2: Studentized Range Quantile Function (qtukey Function)

The second example illustrates how to plot the quantile function of the Studentized Range distribution in R:

```x_qtukey <- seq(0, 1, by = 0.01) # Specify x-values for qtukey function y_qtukey <- qtukey(x_qtukey, nmeans = 5, df = 2) # Apply qtukey function plot(y_qtukey, type = "o") # Plot qtukey values``` Figure 2: Quantile Function of Studentized Range Distribution in R.

## Video & Further Resources

Do you need further explanations on the R codes of this tutorial? Then you might want to have a look at the following video of my YouTube channel. In the video, I show the contents of this article in a live session:

You might also have a look at the other posts on distributions and the simulation of random numbers in the R programming language:

In addition, you may read the related R programming articles of my website.

In summary: This tutorial illustrated how to use the Studentized Range commands in the R programming language. If you have additional questions, don’t hesitate to let me know in the comments section below.

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• Endalew
July 7, 2021 7:04 am

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