Displaying 1 result from an estimated 1 matches for "hsgpa".
2006 Jun 12
3
Group averages
Hello:
I hope none of you will mind helping a newbie. I'm a student research
assistant working with a large data set in which observations are
categorized according to two factors. I'm trying to calculate the group
mean and variance of a variable (called 'hsgpa' in the example data
presented below) to each observation , excluding that observation. For
example, if there are 20 observations with the same value of the two
factors, for each of the 20 I'd like to generate the mean and variance
of the 'hsgpa' values of the other 19 group m...