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Re: st: which model do this commands refer to
From
Nick Cox <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: which model do this commands refer to
Date
Tue, 30 Jul 2013 13:45:27 +0100
Why not ask your friend?
There is no model here, just some calculations to show kernel density
and cumulative distribution plots after taking logarithms. -help
kdensity- and -help cumul- will explain more.
Nick
[email protected]
On 30 July 2013 13:22, Walter Moturi <[email protected]> wrote:
> hi statalisters!
> below are some commands a friend of mine referred me to in solving a
> querry i had on which dairy marketing channel was dominant among a set
> of channels. The dominace was based on the net returns. The model to
> which they belong to is still a puzzle although i got results. Please
> may some one help me
>
> gen Vo1= ln( NET_RETURNS) if OVR_allchannel==1
> (133 missing values generated)
>
> . gen Vo2= ln( NET_RETURNS) if OVR_allchannel==2
> (120 missing values generated)
>
> . gen Vo3= ln( NET_RETURNS) if OVR_allchannel==3
> (175 missing values generated)
>
> . gen Vo4= ln( NET_RETURNS) if OVR_allchannel==4
> (189 missing values generated)
>
> . gen Vo5= ln( NET_RETURNS) if OVR_allchannel==5
> (194 missing values generated)
>
> . sum Vo1 Vo2 Vo3 Vo4 Vo5
>
> Variable | Obs Mean Std. Dev. Min Max
> -------------+--------------------------------------------------------
> Vo1 | 63 10.05954 1.429657 6.063785 12.25534
> Vo2 | 76 10.77753 1.36709 4.094345 14.25545
> Vo3 | 21 10.9978 .8869691 8.594154 12.58225
> Vo4 | 7 10.72201 .814208 9.81684 11.91405
> Vo5 | 2 11.30802 .6630212 10.83919 11.77684
>
> . twoway (kdensity Vo1) (kdensity Vo2) (kdensity Vo3) (kdensity Vo4)
> (kdensity Vo5)
>
> . cumul Vo1, gen(cVo1)
>
> . cumul Vo2, gen(cVo2)
>
> . cumul Vo3, gen(cVo3)
>
> . cumul Vo4, gen(cVo4)
>
> . cumul Vo5, gen(cVo5)
>
> . stack cVo1 Vo1 cVo2 Vo2 cVo3 Vo3 cVo4 Vo4 cVo5 Vo5, into(c
> OVR_allchannel) wide clear
>
> . line cVo1 cVo2 cVo3 cVo4 cVo5 OVR_allchannel, sort
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
*
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