Re: [R] variable standardization in manova() call

2013-11-16 Thread Sergio Fonda
thank you for your reply. However, your remark was not so clear to me so I attach a short script I tried to launch. The comparison between results got from MANOVA() call with the non-standardized and standardized version of the same data frame, convinced me that it is not necessary to standardize

Re: [R] variable standardization in manova() call

2013-11-07 Thread Sergio Fonda
2013/11/6 Michael Friendly : > On 11/4/2013 10:45 AM, Sergio Fonda wrote: >> >> Hi, >> I'm not able to get information about the following question: >> >> is the variables standardization a default option in manova() (stats >> package)? >> Or if you want to compare variables with different units or

Re: [R] variable standardization in manova() call

2013-11-06 Thread Michael Friendly
On 11/4/2013 10:45 AM, Sergio Fonda wrote: Hi, I'm not able to get information about the following question: is the variables standardization a default option in manova() (stats package)? Or if you want to compare variables with different units or scales and rather different variances, you have

[R] variable standardization in manova() call

2013-11-04 Thread Sergio Fonda
Hi, I'm not able to get information about the following question: is the variables standardization a default option in manova() (stats package)? Or if you want to compare variables with different units or scales and rather different variances, you have to previously standardize the variables ? Th