ok... excuseme Andresrcs, butI'm in crisis.
I also posted another topic with the complete code https://forum.posit.co/t/error-in-data-frame-tmp-subject-value-replacement-has-1-row-data-has-0/24057 .. in the meantime I'm trying your code .. I hope it works
my code I think is not efficient at all .. but I'm not practical for R and I'm trying to do something working at least