Re: st: Replace with missing value

[Alex Olssen <alex.olssen@gmail.com>]

Here is an example. You can check that it does what you want. You must 
be careful about the first 30 observations. I only start your replacing 
from the 31st days.  You can manually adjust this part to suit your needs.
clear
set seed 1
set obs 10000
gen days = _n
gen x = round(100 * runiform())
gen y = round(100 * runiform())
replace y = . if y > 95
tsset days
forvalues d = 1/30 {
  replace x = . if L`d'.y == . in 31/l
}

Regards,
Alex

On 12/04/13 7:35 PM, André Gyllenram wrote:
> So i have a simple problem. I have a time series and two variables. I have a variable that is nonmissing and i would like to replace it with a missing value if my other variable has a missing value somwhere during the last 30 days. Can anyone help me?
>
> Kind regards
> André 		 	   		
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