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in r keep group elements starting from first non-missing until last
I would like to retain, for each group of a data frame, the first non-missing element until the last element (even if the last is missing).
For example:
df <- structure(list(Ind = c(1L, 1L, 1L, 1L,...
Omry Atia
Votes: 0
Answers: 2
aggregate toString ignoring NA values / Concatenate rows including NAs
Aim is to concatenate rows toString (which contain NAs) based on unique identifiers
id year cat_1 cat_2
001 2021 Too high NA
001 2021 YOY error YOY error
002 2021 T...
shujufenxishi
Votes: 0
Answers: 1
If with two conditions involving is.na() returning unexpected output in R tibble?
Please forgive me but I can't figure out how to create a tibble (could only create data.frame) so I"m pasting my data (I know, bad form) enter code here.
# A tibble: 13 x 2
`Date CADD Rec'd` ...
Chris
Votes: 0
Answers: 0
Ignore NA values when using MIN function of "apply"
I am trying to get a column made up of the minimum values from other specified columns in which NA values are ignored. When I do this:
foo = data.frame(A = c(1, 2, 3, NA), B = c(3, NA, 2, NA), C = c(N...
Sergei Walankov
Votes: 0
Answers: 1