Re: [R] Running list of drugs taken and dropped (via Reduce and accumulate = TRUE or by other means)

On 1/10/19 7:00 AM, Paul Miller via R-help wrote: Hello All, Would like to keep a running total of what drugs cancer patients have taken and what drugs have been dropped. Searched the Internet and found a way to cumulatively paste a series of drug names. Am having trouble figuring out how t

[R] Running list of drugs taken and dropped (via Reduce and accumulate = TRUE or by other means)

Hello All, Would like to keep a running total of what drugs cancer patients have taken and what drugs have been dropped. Searched the Internet and found a way to cumulatively paste a series of drug names. Am having trouble figuring out how to make the paste conditional though. Below is some s