Re: [Gretl-users] Dataset handling in gretl (IDs, labels, standardization)

[Pindar]

Hi,

since hansl is a very userfriendly language u can even shorten the code 
by using

my_std_matrix ~= {my_std_series}

Cheers

Am 16.04.2013 15:30, schrieb artur bala:
>
>>
>>> (3) Finally, I would like to standardize the regressors (not the dependent 
>>> variable) in my dataset, such that each regressor has mean 0 and standard 
>>> deviation of 1. Is there a "summary way" to do this e.g. by declaring the 
>>> dataset to be a matrix, then operating on this matrix using some matrix 
>>> operators?
>> I guess you could do this by using the "meanc" and "sdc" commands.
>
> Or, better try the following script
>
> <hansl>
>
> open australia.gdt
> matrix my_std_matrix = {}
>
> loop foreach i PAU..IUS
>     mymean = mean($i)
>     mysd = sd($i)
>     my_std_series = ($i - mymean)/mysd
>     my_std_matrix = my_std_matrix ~ {my_std_series}
> endloop
>
>
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Hi, since hansl is a very userfriendly language u can even shorten the code by using my_std_matrix ~= {my_std_series} Cheers Am 16.04.2013 15:30, schrieb artur bala: (3) Finally, I would like to standardize the regressors (not the dependent variable) in my dataset, such that each regressor has mean 0 and standard deviation of 1. Is there a "summary way" to do this e.g. by declaring the dataset to be a matrix, then operating on this matrix using some matrix operators? I guess you could do this by using the "meanc" and "sdc" commands. Or, better try the following script <hansl> open australia.gdt matrix my_std_matrix = {} loop foreach i PAU..IUS     mymean = mean($i)     mysd = sd($i)     my_std_series = ($i - mymean)/mysd     my_std_matrix = my_std_matrix ~ {my_std_series} endloop _______________________________________________ Gretl-users mailing list gretl-us...@lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-users