from SPSS to Stata syntax

[Danielle Bertrand]

Hello,

After rewriting my SPSS-syntax to Stata-syntax and working with Stata for a while, I have to redo an analysis that was originally programmed in SPSS. The SPSS-syntax is:

compute i_vo=mean(vo)
compute ii_vo=(i_vo*n-vo)/(n-1)

For the first command I now use in STATA:
egen i_vo = mean(vo)

But how can I rewrite the second SPSS-command in STATA?

Thanks for your help!
Daniëlle

[Marcos Almeida]

Hello Danielle,

Welcome to the Stata Forum.

I kindly ask you to present commands under CODE delimiters, as recommended in the FAQ.

For example, you may try this code:

. gen ii_vo = (i_vo*n-vo)/(n-1)

Please prefer to refer to "Stata" (only the first letter is capital).

Best,

Marcos

[Richard Williams]

I assume n stands for sample size? If so, I might do

sum vo
gen i_vo = r(mean)
gen ii_vo=(i_vo*r(N) - vo)/(r(N)-1)

Or, if you don't really need i_vo,

sum vo
gen ii_vo=(r(mean)*r(N)-vo)/(r(N)-1)

Or, for that matter,

sum vo
gen ii_vo=(r(sum)-vo)/(r(N)-1)

[Danielle Bertrand]

Indeed, n stands for sample size. Thanks a lot!