When I'am going to join two columns in the Libreoffice Calc, it seems that I have to do this by programming in Python for as far as I know, there is no way to index a cell by variable, specifically, to use a variable to denote the row number or column number.
I wonder whether there is no way to do this?
Many thanks if you could save me from write another temporary python script >_<
I feel you may need the INDIRECT function.
You can try with
="Good Morning Mr, " &INDIRECT("D" & A9)
which will give you
"Good morning, Mr White"
where D9 contains string "White", and A9 contains digit 9
Hope will help