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#1
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Perform functions on the result of adding two columns
Hi there,
I have two columns of data before and after and event and I want to find the median, min, max and quartiles of the change that has occured (after - before). I can easily make another column to calculate the differences and perform the statistics very easily. I already have a lot of columns so I wanted to find ways of saving space and since this is a calculation that I do for a number of variables it would certainly free up columns for me. I have found functions such as sumx2py2 that act in the way that I am looking for, but I do not need to find the sum of the squared differences, I just want to find the minimum of the differences. Are there functions in Excel that can do this? Many thanks Tim Archer |
#2
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Tim,
With the 'After' numbers in B1:B100, and the 'Before' numbers in A1:A100, you can array enter (enter using Ctrl-Shift-Enter) =MIN(B1:B100-A1:A100) =MAX(B1:B100-A1:A100) =MEDIAN(B1:B100-A1:A100) =QUARTILE(B1:B100-A1:A100,1) =QUARTILE(B1:B100-A1:A100,2) =QUARTILE(B1:B100-A1:A100,3) =QUARTILE(B1:B100-A1:A100,4) Note that you must match your data range exactly - these won't work with blanks the way Min and Max usually will. HTH, Bernie MS Excel MVP "Tim Archer" wrote in message ... Hi there, I have two columns of data before and after and event and I want to find the median, min, max and quartiles of the change that has occured (after - before). I can easily make another column to calculate the differences and perform the statistics very easily. I already have a lot of columns so I wanted to find ways of saving space and since this is a calculation that I do for a number of variables it would certainly free up columns for me. I have found functions such as sumx2py2 that act in the way that I am looking for, but I do not need to find the sum of the squared differences, I just want to find the minimum of the differences. Are there functions in Excel that can do this? Many thanks Tim Archer |
#3
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You have to use an array formula. For example type the
following into a cell =MIN(A2:A6-B2:B6) And then instead of pressing Enter, press Shift + Enter This will enter it as an array formula and you will see that it now has {} around it ={MIN(A2:A6-B2:B6)} -----Original Message----- Hi there, I have two columns of data before and after and event and I want to find the median, min, max and quartiles of the change that has occured (after - before). I can easily make another column to calculate the differences and perform the statistics very easily. I already have a lot of columns so I wanted to find ways of saving space and since this is a calculation that I do for a number of variables it would certainly free up columns for me. I have found functions such as sumx2py2 that act in the way that I am looking for, but I do not need to find the sum of the squared differences, I just want to find the minimum of the differences. Are there functions in Excel that can do this? Many thanks Tim Archer . |
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