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Loick
France
14 Posts |
 Posted - 02/13/2009 : 11:11:21 AM
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Origin Ver. and Service Release (Select Help-->About Origin): 7,5
Operating System: XP pro
Dear all,
I try to find the command to normalize a column by the highest value.
I've looked on a huge part of the wiki.origin web page, but I don't clearly understand the labtalk syntax 
I use this small script which need to be completed.
{
//add 2 column "normlum" & "VolInc"
work -c NormLum;
work -c VolInc;
}
{
//copy the value from column "Lum" to the new column (with the aim to normalize it after)
col(NormLum) = col(Lum);
col(VolInc) = col(vol)-(the smallest value in col(vol);
}
Thanks in advance for your help,
loick
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Deanna
China
Posts |
Posted - 02/15/2009 : 10:36:31 PM
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Hi loick,
You mentioned that you want to "normalize a column by the highest value". Do you mean that after normalization, you want the maximum value to be "1" and the smallest value to be "0"?
Deanna
OriginLab Technical Services |
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Loick
France
14 Posts |
Posted - 02/17/2009 : 06:32:16 AM
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hello Deanna,
thanks for your reply.
In fact I have found the solution which is the following one:
quote:
sum(Data1_B); //compute max, min, etc.
Data1_C=Data1_B/sum.max; //divide column B by max, and put in C
this script allows to normalize a column by the highest value in it. So after running this script, the highest value after calculation will be 1.
You can also run this other script :
quote:
sum(Data1_B); //compute max, min, etc.
Data1_C=Data1_B-sum.min; //subtract column B by min, and put in C
Which subtracts to all column numbers the smallest value of an other column.
I hope it will be helpful for the other users of originlab.
Loick
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asvpuneet
India
1 Posts |
Posted - 12/02/2009 : 1:26:46 PM
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Hi...
can anyone help me in the script for applying the FFT smoothing method to the specified data set,and generalise it..so that it can be used as a formula...
thanks in advance,
regards
-puneet |
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Topic |
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Normalize a column and calculation