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Re: st: How to change the base reference variable
From
Ángel Rodríguez Laso <[email protected]>
To
[email protected]
Subject
Re: st: How to change the base reference variable
Date
Tue, 27 Nov 2012 13:42:25 +0100
Dear Sharon,
I'm not sure I understand your query.
Assuming C7_FLAT_FEE is coded now 0 'by weight' 1 'flat fee' , you
only have to recode 0=1 and 1=0 to make flat fee the reference
category (remember to change value labels).
Alternatively, you can try if this works:
char C7_FLAT_FEE [omit] 1
Best regards,
Angel Rodriguez-Laso
2012/11/27 Sharon Brody <[email protected]>:
> How do I change the "base" variable for the following when I want to compare the respondents that pay by weight against the ones that pay by flat fee. I want to use the "Flat Fee" as the base reference and compare the other values against it, so from what I understand, the Flat Fee will be 0 and the other variables relate to this one???
>
>
> | Robust
>
> FOOD_REC_YESNO | Coef. Std. Err. z P>|z| [95% Conf. Interval]
> ---------------------------+----------------------------------------------------------------
> WSTCHGE_WTANDVOL | .6269663 .0758675 8.26 0.000 .4782687 .7756639
> C7_WSTCHRG_FREQ | .3669699 .1222214 3.00 0.003 .1274202 .6065195
> C7_WSTCHRG_SIZE | .6952631 .1009664 6.89 0.000 .4973725 .893153
> C7_WSTCHRG_NOCHRGE | .2395512 .0674308 3.55 0.000 .1073892 .3717132
> C7_FLAT_FEE | .1504759 .0565794 2.66 0.008 .0395823 .2613695
> MARRIEDDUMMY | .0867563 .0446619 1.94 0.052 -.0007795 .1742921
> A01_SEX | -.0569886 .0406814 -1.40 0.161 -.1367228 .0227455
> A02_AGEGROUP | .0586061 .0161849 3.62 0.000 .0268843 .090328
> A05_YEAR_POST_SCHOL| .0048855 .0064896 0.75 0.452 -.0078338 .0176048
>
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