I have looked around StackOverflow, but I cannot find a solution specific to my problem, which involves appending rows to an R data frame.
I am initializing an empty 2-column data frame, as follows.
df = data.frame(x = numeric(), y = …
I have a dataframe, and for each row in that dataframe I have to do some complicated lookups and append some data to a file.
The dataFrame contains scientific results for selected wells from 96 well plates used in biological research …
I have the following 2 data.frames:
a1 <- data.frame(a = 1:5, b=letters[1:5])
a2 <- data.frame(a = 1:3, b=letters[1:3])
I want to find the row a1 has that a2 doesn't.
Is there a built in function for …