Re: [R] Mapping data onto score

From: rcoder <michael.larsson_at_gmail.com>
Date: Tue, 15 Jul 2008 14:16:48 -0700 (PDT)

Hi Ben,
Yes, this is more or less what I want to do. I want to apply this data in columns in a matrix, and insert the results to additional columns. I am not entirely aware of a good way of doing this.

e.g. take data from column B, apply normalisation, and feed output into column C

Thanks,

rcoder

Ben Tupper wrote:
>
>
> On Jul 15, 2008, at 8:16 AM, rcoder wrote:
>

>>
>> Hi everyone,
>>
>> I want to score a set of data (-ve to +ve) using a 0-10 scale. I  
>> have the
>> data in an R matrix, so I need to add another column, containing  
>> the scores
>> and resave.
>>

>
> Hi,
>
> I am a little fuzzy on what you are asking, but my guess is that you
> want to normalize the data into the 0-1 range then multiply by 10.
>
> values <- rnorm(10) #some numbers
> mm <- range(values) #the minmax range
> scaled <- (values-mm[1])/(mm[2]-mm[1]) #normalize into 0-1
> scaled10 <- 10 * scaled #scale 0-10
>
> Is that what you seek?
> Ben
>
> ______________________________________________
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Received on Tue 15 Jul 2008 - 21:19:56 GMT

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