ranges

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VickyBe

ranges

Postby VickyBe » Fri Nov 02, 2007 12:16 pm

:?: I want to analyse 3 variables. The problem is that each of them has a totally different range (range 1= 23, range 2=123, range 3=11).

I want to recode my 3 variables so that they all have a range of 20. Does anyone know how to do this?
Smash
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Joined: Tue Aug 07, 2007 11:48 am

Postby Smash » Tue Nov 06, 2007 5:16 pm

Try one of standarization method - in SPSS, they are part of Hierarchical Clusters, but don't know if they can be obtain separately.
Still you can do it on your own, for example
y=20*(x-min(x))/(max(x)-min(x)).
max & min can be calculated in aggreagtion.
same for normalization by mean and std dev.

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