How to add a column for descending row numbers into dataset in R

Question

BioIsaac

2021年1月11日 01:44

I am new to R and would like to insert a new column that numbers the row to a large dataset.

I have no idea how to use 'mutate()' to insert this. Would appreciate any help.

Thanks.

Oxbowerce · Accepted Answer · 2021年1月10日 16:22

Oxbowerce answered at 2021年1月10日 16:22

Use mutate in combination with row_number as follows:

df %>% mutate(row = row_number())