Minimise output and rename columns

[LindaNab]

I recently got (very reasonable) pushback from output checkers when using a function very similar to this function for KMs. Leading to minimising output and renaming the columns to make the output better understandable:

• remove ‘N’ columns
• rename interval columns (tstart, tend, interval_length)
• remove standard errors, only include lower and upper CIs
• remove censoring columns
• note that column cml.event.r should still be included to understand logic of n.event.r

Maybe:

• remove columns with risk estimates (as these can be calculated from surv)

Of note, we also have a naming convention recommending that midpoint 6 rounded columns should use the suffix _midpoint6 and columns derived from _midpoint6 should use suffix _midpoint6_derived; which is currently not implemented.

[LindaNab]

You could consider adding this as an extra output file of the function, not replacing the non-minimised output (in case needed for sense checking output).