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Re: st: graphing median values against time
From
Donald Spady <[email protected]>
To
Statalist Statalist <[email protected]>
Subject
Re: st: graphing median values against time
Date
Sun, 30 Mar 2014 16:51:18 -0600
Timothy
I am using your -lgraph- command and wonder if it is possible to have TWO stats created (e.g. mean and median) for the same variable(s) at the same time. I want to plot both mean and median and cannot create an overlay to do so.
Many thanks
Don
On Mar 28, 2014, at 1:29 AM, Timothy Mak <[email protected]> wrote:
> The command -lgraph- that I wrote is for exactly this kind of problem if you don't want to create all the variables before plotting a graph.
> You can see it by typing:
> ssc des lgraph
>
> Tim
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf Of Donald Spady
> Sent: 28 March 2014 08:59
> To: Statalist Statalist
> Subject: Re: st: graphing median values against time
>
> Nick
> It works. Just as I needed. Many thanks.
> John: That suggestion didn't work the way I wanted it to, but thanks for the idea.
>
> Don
> On Mar 27, 2014, at 5:48 PM, Nick Cox <[email protected]> wrote:
>
>> Sure. If you use -egen-'s -median()- and -mean()- functions to get the
>> variables you want, then it's any graph you want.
>>
>> As the median and mean values are repeated, don't plot them repeatedly.
>>
>> Here are some dopey examples.
>>
>> . webuse grunfeld
>>
>> . egen median = median(invest), by(year)
>>
>> . egen mean = mean(invest), by(year)
>>
>> . egen tag = tag(year)
>>
>> . line mean median year if tag
>>
>> For finer subdivisions, just use more variables as arguments to -by()-.
>>
>> Nick
>> [email protected]
>>
>>
>> On 27 March 2014 22:34, Donald Spady <[email protected]> wrote:
>>> Dear all
>>> I want to graph the median and mean values of a series of variables against a time variable (on the X axis) and with the option of stratifying the variables by another one (such as sex or disease state). I think I can do this by collapsing the data but is it possible to do this while retaining the data set in its 'original' state. I have searched the archives and the reference manuals but have not come up with anything that seems to be what I want.
>>> In many ways what I would like is a box plot with JUST the median (or mean) being plotted: no box, no outliers. Is that possible.
>>>
>>> Thanks
>>> Don
>>> *
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>>> * http://www.ats.ucla.edu/stat/stata/
>>
>> *
>> * For searches and help try:
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>> * http://www.ats.ucla.edu/stat/stata/
>>
>
>
> *
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> * http://www.ats.ucla.edu/stat/stata/
>
> *
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> * http://www.ats.ucla.edu/stat/stata/
>
*
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