how do I create a probability plot in R using R-studio

Question

I want to create a lognormal (or other distribution) probability plot in R (for R-studio). I have looked around on the web for an example but none of the examples tell me what package I need to install in order to use the function.

logn_prob_plot <- function() 
{ 

    x<-rlnorm(10,5,1) 
    x 
    probplot(x,qdist=qlnorm,xlab="failure time",ylab="lognormal probability") 

}


Error in probplot(x, qdist = qlnorm, xlab = "failure time", ylab = "lognormal probability") : could not find function "probplot" 

Answer 1

Writing up the comment thread as an answer:

The error ( could not find function "probplot" ) is showing up because a necessary package is not installed. It's not specifically related to creating a probability plot.

Googling "r probplot" turns up the documentation for the package e1071 , which is available in CRAN .

The package can be installed by entering install.packages("e1071") in your terminal or by selecting Tools -> Install Packages in the RStudio GUI. You can then load that package using library("e1071") .