Join two files coming from different readers in loop


#1

Hi everyone,

I have two sets of files which contain different information from an assay run for different dates. I am trying to read them in a loop and manipulate both files and join the columns together to one final table. I’m getting a stack issue I’m guessing because there is no information that they are indexed the same. I’m sure this has been done and I’m making some trivial mistake. Any help would be greatly appreciated. I’ve attached a png of the beginning of the flow.

Thanks,
Jason Ochoada!

KNIME_flow


#2

Try two loop ends (two, one for each loop) you need to use a ‘Joiner’ node, and join on both the date and whatever other column(s) you want to join on.

Steve