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# AW: AW: AW: st: error message "too many weights"

 From "Jette Kellerhoff" <[email protected]> To <[email protected]> Subject AW: AW: AW: st: error message "too many weights" Date Mon, 26 Mar 2012 10:44:10 +0200

```For each subject exists a weight (variable gew), which identifies the real
abundance pattern in time. The computed values of the variable gew are the
result of the real abundance pattern multiplied by the probability to stay
in the panel. So in many cases the results are not integers. How to create
integers?

Jette

-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Nick Cox
Gesendet: Sonntag, 25. März 2012 20:04
An: [email protected]
Betreff: Re: AW: AW: st: error message "too many weights"

I could tell you about Stata. But you really need to explain what the
variable -gew- is, why some values are not integers, and why you want
to treat them as frequency weights.

Nick

On Sun, Mar 25, 2012 at 6:50 PM, Jette Kellerhoff <[email protected]> wrote:
> There are some non-integer values. How to create integers?
>
> -----Ursprüngliche Nachricht-----
> Von: [email protected]
> [mailto:[email protected]] Im Auftrag von Nick Cox
> Gesendet: Sonntag, 25. März 2012 19:14
> An: [email protected]
> Betreff: Re: AW: AW: st: error message "too many weights"
>
> The implication is that your variable -gew- contains non-integer
> values. Is that true?
>
> . list gew if gew != floor(gew)
>
> fweights indicate frequencies, which must be integers.
>
> On Sun, Mar 25, 2012 at 6:09 PM, Jette Kellerhoff <[email protected]>
wrote:
>> I removed the first bracket, but the error message is still the same: may
>> not use noninteger frequency weights
>> stset tfp [fweight = gew], id(hhnrakt) f(des=2 4 6 8 10 12) exit(time .)
>>
>> -----Ursprüngliche Nachricht-----
>> Von: [email protected]
>> [mailto:[email protected]] Im Auftrag von Steve
Samuels
>> Gesendet: Sonntag, 25. März 2012 18:48
>> An: [email protected]
>> Betreff: Re: AW: AW: st: error message "too many weights"
>>
>> You did not follow my advice to look at the examples. You only removed
the
>> last bracket; the beginning "[" of the second pair remains.
>>
>> Steve
>> [email protected]
>>
>> On Mar 25, 2012, at 12:40 PM, Jette Kellerhoff wrote:
>>
>> Thanks for your advice. If I remove the brackets, I get the following
> error
>> message may not use noninteger frequency weights. I don't understand it,
>> because fweights are allowed in the stset-command.
>> The do-file:
>> stset tfp [fweight=gew] [ ,id(hhnrakt) f(des=2 4 6 8 10 12) exit(time.)
>>
>> Jette
>>
>>
>>
>> -----Ursprüngliche Nachricht-----
>> Von: [email protected]
>> [mailto:[email protected]] Im Auftrag von Steve
Samuels
>> Gesendet: Donnerstag, 22. März 2012 22:45
>> An: [email protected]
>> Betreff: Re: AW: st: error message "too many weights"
>>
>>
>> I should add that in the -help- for -stset-, the brackets indicate where
>> options, if any, should go. Before running an unfamiliar command, always
>> look at the examples at the bottom of the help screen or in the manual.
>>
>> Steve
>>
>> Remove the second pair of brackets in your -stset- statement. They are
not
>> legal Stata syntax.
>>
>>
>>
>> Steve
>> [email protected]
>>
>>
>> On Mar 22, 2012, at 3:18 PM, Jette Kellerhoff wrote:
>>
>> Sorry for the impatientness, but I have to solve the problem very soon.
>> The case:
>> - 4841 subjects with multiple record per subject (max 4 records)
>> - for each subject exists a weight, which identifies the real abundance
>> pattern in time
>>
>> I used the following do-file:
>> gen des =tfin~=ti
>>
>> gen tf = tfin-tstart+1
>>
>> gen org=1+2*(spell-1)
>> replace des=org
>> replace des=org+1 if tfin<ti
>> gen tfc=tstart if spell==1
>> replace tfc=tfc[_n-1] if spell~=1 & hhnrakt==hhnrakt[_n-1]
>> gen tsp = tstart-tfc
>> gen tfp = tfin-tfc+1
>> stset tfp [fweight=gew] [ ,id(hhnrakt) f(des=2 4 6 8 10 12) exit(time .)]
>>
>> Thanks for your support.
>>
>> -----Ursprüngliche Nachricht-----
>> Von: [email protected]
>> [mailto:[email protected]] Im Auftrag von Richard
> Herron
>> Gesendet: Donnerstag, 22. März 2012 19:49
>> An: [email protected]
>> Betreff: Re: st: error message "too many weights"
>>
>> Jette, can you provide a reproducible example? That may help diagnose
>> your problem. Can you reproduce the error with -sysuse- data or
>>
>> Also, it may take more than a few hours to get a response given
>> different time zones and work schedule.
>>
>> Richard Herron
>>
>>
>>
>> On Thu, Mar 22, 2012 at 14:34, Jette Kellerhoff <[email protected]> wrote:
>>> Dear Statalist members,
>>>
>>> how to deal with weights according to survival data analysis? If I use
>>> fweights according to stset command, I get the error message "too many
>>> weights". Does anyone have any suggestions?
>>> Thanks for your support.
>>>
>
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```