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VickyBe
 Post subject: ranges
PostPosted: 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?
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Smash
 Post subject:
PostPosted: Tue Nov 06, 2007 5:16 pm 
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Joined: Tue Aug 07, 2007 11:48 am
Posts: 233
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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