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RE: st: RE: Use 2 variables to gen 10 new variables
From
Jonathan Grondin <[email protected]>
To
statalist2 <[email protected]>
Subject
RE: st: RE: Use 2 variables to gen 10 new variables
Date
Thu, 28 Jul 2011 14:59:36 +0000
Here is a tabulate of the two variables X1 and X2 holding each 5 values
tab X1
X1 | Freq. Percent Cum.
------------+-----------------------------------
Y1 | 2 10.53 10.53
Y2 | 6 31.58 42.11
Y3 | 3 15.79 57.89
Y4 | 7 36.84 94.74
Y5 | 1 0.05 100
------------+-----------------------------------
Total | 19 100.00
tab X2
X2 | Freq. Percent Cum.
------------+-----------------------------------
Y1 | 4 20.00 20.00
Y2 | 2 10.00 30.00
Y3 | 4 20.00 50.00
Y4 | 8 40.00 90.00
Y5 | 2 10.00 100
------------+-----------------------------------
Total | 20 100.00
I would like to create 5 variable (Y1 to Y5) holding two values each (from prior X1 and X2)
e.g.:
tab Y1
Y1 | Freq. Percent Cum.
------------+-----------------------------------
X1| 2 33.33 33.33
X2| 4 66.67 100.00
------------+-----------------------------------
Total | 6 100.00
tab Y2
Y2 | Freq. Percent Cum.
------------+-----------------------------------
X1| 6 75.00 75.00
X2| 2 25.00 100.00
------------+-----------------------------------
Total | 8 100.00
etc.
Any suggestions ?
Jonathan
----------------------------------------
> Date: Thu, 28 Jul 2011 15:13:02 +0100
> Subject: Re: st: RE: Use 2 variables to gen 10 new variables
> From: [email protected]
> To: [email protected]
>
> Sorry, but I can't relate your example to a Stata dataset. Rows and
> columns can't both be Stata variables. Please show your example as
> produced by a Stata command and show how you are holding the data
> within Stata.
>
> On Thu, Jul 28, 2011 at 2:57 PM, Jonathan Grondin
> <[email protected]> wrote:
> > Indeed, I'll try to present it less ad hoc.
> >
> > Let's see it that way:
> >
> > I have 2 variables X1 and X2, each holding 5 values (Y1 to Y5). Instead, I'd like to create 5 variables: Y1 through Y5 holding 2 values (X1 & X2)
> >
> >
> > Y1 Y2 Y3 Y4 Y5
> >
> > X1: 2 6 3 7 1
> >
> > X2: 4 2 4 8 2
> >
> >
> > I've taken a look at -contract- but can't manage a simple way of doing it.
> > Any suggestions ?
> >
> >
> > Jonathan
> >
> >
> >> From: [email protected]
> >> To: [email protected]
> >> Date: Wed, 27 Jul 2011 19:15:19 +0100
> >> Subject: st: RE: Use 2 variables to gen 10 new variables
> >>
> >> This sounds very ad hoc. Consider instead the possibilities for producing new reduced datasets by -contract- and -collapse-.
> >>
> >> Nick
> >> [email protected]
> >>
> >> Jonathan Grondin
> >>
> >> I have a questionnaire answered by two groups (group "a" and group "b").
> >> Every question had to be answered by a value of 1 through 10. Every question is then divided into 2 variables, e.g Question 1: "q1a" and "q1b".
> >>
> >> I would like to combine q1a and q1b together and create 10 variables out of them each of them holding the frequency of the two groups. e.g. "q1a" and "q1b" would generate: "new_q1_1" to "new_q1_10".
> >> Every new variable would hold two values: new_q1_1 would hold the frequency of people in group "a" who answered "1" and the frequency of people in group "b" who answered "1".
> >>
> >>
>
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