Is it possible to get the row number of the maximum value of a column?
I would like to create a formula that uses a value in a column as an offset and I would like to write it in generic form such that it looks in Col1 for a maximum value and then returns the row number such I can use the value of col2 at that row number as the offset.
How could I do this?
Thanks in advance
Here is a simple solution to your issue. It can be moved directly into a formula, or used in open code as it is shown:
names default to here(1); dt=open("$SAMPLE_DATA\Semiconductor Capability.jmp" ); MaxRow=(dt<<get rows where(Col Maximum(:NPN1)==:NPN1)); show(MaxRow);
Col Max can return the max value in a column. Here's how you can find the row and use it to return the corresponding value in a different column using the Big Class sample data set:
dt = Current Data Table(); max_row = dt << Get Rows Where(:height == Col Max(:height)); dt:weight[max_row]
Can I do this only using the formula editor?
Sure. Find the row with max value for column X1 and return the corresponding value for X2:
:X2[Current Data Table() << Get Rows Where( Col Maximum( :X1 ) == :X1 )]
You can copy that right into the formula editor and it will work.