RE: [R] Levene test of homogeneity of variance

2003-08-14 Thread Harold Doran
I believe it is in the Rcmdr package, which requires the car library to be loaded. You can also perform an ANOVA using the absolute value of the deviations from each respective group mean, which is what Levene's Test does. -- Harold C. Doran Director of Research and Evaluation New

Re: [R] Levene test of homogeneity of variance

2003-08-14 Thread Marc Schwartz
On Wed, 2003-08-13 at 09:39, Haynes, Maurice (NIH/NICHD) wrote: Has the Levene test of homogeneity of variance been implemented in any library in R? Thanks, Maurice Haynes National Institute of Child Health and Human Development Child and Family Research Section 6705 Rockledge Drive

Re: [R] Levene test of homogeneity of variance

2003-08-14 Thread John Fox
Dear Maurice, Brian Ripley once posted a function for Levene's test to the R-help list. I incorporated a slightly modified version in the Rcmdr package. Since the function is very simple, I'll just list it here (it doesn't make sense to use the Rcmdr package just for this function):

Re: [R] Levene test of homogeneity of variance

2003-08-14 Thread Uwe Ligges
Haynes, Maurice (NIH/NICHD) wrote: Has the Levene test of homogeneity of variance been implemented in any library in R? levene.test() is in Rcmdr. Uwe Ligges Thanks, Maurice Haynes National Institute of Child Health and Human Development Child and Family Research Section 6705 Rockledge Drive

RE: [R] Levene test of homogeneity of variance

2003-08-14 Thread JRG
On 13 Aug 03, at 11:26, Harold Doran wrote: I believe it is in the Rcmdr package, which requires the car library to be loaded. You can also perform an ANOVA using the absolute value of the deviations from each respective group mean, which is what Levene's Test does. The function just