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thomsen01
Austria
22 Posts |
 Posted - 04/28/2014 : 09:52:30 AM
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OriginPro 9.1.0G (32-bit) SR2, Win7
Hello!
How can I get the row number of a median?
For example I have a datasheet with 1 column:
2
3
1
6
7
8
3
with the function:
db=median(col(1)[1:5],2);
db=;
I can get the median of the first 5 rows and it's "3", but how can I also get the row number (in this case "2")?
Thanks for your help!
Thomsen |
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lkb0221
China
497 Posts |
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greg
USA
1378 Posts |
Posted - 04/28/2014 : 3:53:39 PM
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Without sorting, if you know the median is unique, you can use this:
range raD = [Book1]Sheet1!col(2);
MedianRow = list(median(raD,1),rad);
But it's possible the median exists more than once, in which case you can use:
dataset dsIdx;
range raD = [Data1]Sheet1!2;
MedianValue = median(rad,1);
vfind value:=MedianValue ix:=rad ox:=dsIdx;
loop(ii,1,dsIdx.GetSize())
{
ty $(MedianValue) in row $(dsIdx[ii]);
}
Note that only option 1 of the Median function returns a value that is actually found in the data. |
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thomsen01
Austria
22 Posts |
Posted - 04/30/2014 : 09:26:49 AM
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Thank you for the answers.
Unfortunately I have no possibility to sort my dataset, but the second solution by greg works fine with a few adjustments.
Thanks for your help.
Thomsen |
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Topic |
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Row number of a median value