R - subset - exclude rows based on grepl selection of column value

Question

This question already has answers here: question from:https://stackoverflow.com/questions/65865232/r-subset-exclude-rows-based-on-grepl-selection-of-column-value

Answer 1

df3 <- subset(df2, !grepl("^Imag.*", appt_type))

Basically find all NOT (!) starting with Imag.