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Re: st: Calculating trendline in stata

From   Richard Goldstein <[email protected]>
To   [email protected]
Subject   Re: st: Calculating trendline in stata
Date   Wed, 23 Apr 2014 08:19:37 -0400

your question remains unclear; e.g., why not just use -regress-?


On 4/22/14, 5:29 PM, Tinofa Mutevedzi wrote:
> Dear Richard,
> thank you. But your explanation only works for proportions. What if I
> want a trendline for means?
> On 7 March 2014 16:54, Richard Goldstein <[email protected]> wrote:
>> it is not at all clear what your question is; this is a very simple, and
>> limited, command taking 3 arguments and no options: the first argument
>> is a variable with the number of positives (e.g., events) and the second
>> is the number of negatives (so their sum is the total number of tries)
>> and third is the x variable for the regression
>> if this setup does not match your data then you probably want a
>> different command (e.g., -logistic- or -glogit- or -blogit-)
>> Rich
>> On 3/7/14, 9:42 AM, Tinofa Mutevedzi wrote:
>>> Could someone please help me with the command for ptrend from a module
>>> by Patrick Royston.
>>> regards,
>>> Tinofa Mutevedzi
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