Getting the minimum of the rows in a data frame

Question

I am working with a dataframe that has 65 variables in it. The first variable catalogs a person, and the next 64 variables indicate the geographic distance that person is fr

Answer 1

Or, using the example of Justin:

df$shortest <- do.call(pmin,df[-1])

see also ?pmin and ?do.call, and note that you can drop the first variable in your data frame by using the list indices (so not using any comma at all, see also ?Extract )