How do I select rows from a DataFrame based on column values?

4th column and span 3 columns ; - Cells in rows 2 and 6 have explicit indication number-columns-spanned=1, and thus should not

Column in Excel – On any spreadsheet, the column is represented with letters from A

row column Column in Excel – On any spreadsheet, the column is represented with letters from A

mandingo When selecting variables, they can be added to the table as a row, column, or control variable Row variables show one value of the variable