Re: st: using egen for categorical variable indicating groups

[Shehzad Ali <sia500@york.ac.uk>]

Please ignore my previous question. I was using global which was not 
previously defined because I was following commands from a manual. I have 
rectified the previous problem but now I am getting a different error. Here 
is what I do:

qui sum y
local max=r(max)
kdensity y [aw=wt], n(100) nograph
local width=r(scale)
egen ygroup=cut(y), at(0(width)max) icodes

But I get this error after the last line:

at() invalid -- invalid numlist

I have defined the local 'width'. I am not sure why I am still getting an 
error. Any help would be appreciated.

Thanks,

Shehzad

On Jun 8 2008, Shehzad Ali wrote:


> Hi,
>
> I am trying to generate categorical variable indicating income groups. My 
> income variable is y. Here is what I am doing:
>
> qui sum y
> local max=r(max)
> kdensity y [aw=wt], n(100) nograph
> local width=r(scale)
> egen ygroup=cut(y), at(0(`width')`max') icodes
>
> But I get this error when I run the last line:
>
> { required
>
> I am not sure where I am missing brackets. I have also tried the following 
> but it didn't help.
>
> egen ygroup=cut(y), {at(0(`width')`max')} icodes
>
> Any help would be appreciated.
>
> Cheers,
>
> Shehzad
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