i need r programmer
Budget: $10 – $30 USD
-1
I have this data set in where participants were given a visit day. So in order to differentiate when pre testing happens and post testing happens I need to first match them to their participant id.
I would like to mutate the lower value from visit time to "pre" and the higher value to "post"?
I have this data set in where participants were given a visit day. So in order to differentiate when pre testing happens and post testing happens I need to first match them to their participant id.
I would like to mutate the lower value from visit time to "pre" and the higher value to "post"?