[TUTORIAL]QQ Normal probability plotin Rby moonman239 Tags: normal, plotin, probability, tutorialqq 

#1
Apr111, 07:36 PM

P: 300

I was messing around with R (a statistical package) when I found a quick and dirty way to plot a variable to see if it is normally distributed. It's literally a twostep process, unless you've already done step 1.
1) Give your variable a dataset in R (not exactly sure how to do this  I personally just used the rnorm function, which randomly generates a preset number of normally distributed random values. Maybe some R expert will come in and tell us how.) 2) Run the following command: qqnorm(variable) (replace "variable" with the name you gave your variable.) 


Register to reply 
Related Discussions  
Probability of Normal Distribution  Calculus & Beyond Homework  6  
how to get probability from a normal distribution?  Set Theory, Logic, Probability, Statistics  3  
Probability normal distibution?  Calculus & Beyond Homework  12  
Probability (Normal Distribution etc.)  Calculus & Beyond Homework  2  
Probability tutorial  Academic Guidance  0 