I have a data table with several data columns (e.g. c1, c2 , c3, …, c10). I need to calculate difference of every 2 adjacent columns and place the result in a new column:
since i am not familiar with Java or Python, is there an straight solution in KNIME for this calculation. if not , i appreciate if anyone may help with java or python smany thanksnipets.
not a solution you can easily think of but this idea from
@AlexanderFillbrunn makes this task pretty easy using Column Expressions node. It was about multiplication of 2 columns with step 2 so you’ll need to modify expression a bit.
I would like to ask you how to calculate some basic mathematic operation for more than one column.
need to calculate following columns:
I can use Math Formula nodes, but in this case I have to use it many times separately and that is not convinced or use Math Formula (Multi Column). Am I right with Math Formula (Multi Column)?
But I tried a lot of approaches to configure Math Formula (Multi Column), but no success. Can someo…
Give it a try and if you’ll need help drop me a message and I’ll create an example
thanks for your reply. That was a very nice solution.
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