Is it possible to average a variable only when another variable is true?
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mean(data$NumKilled if data$ForAffil = TRUE, na.rm = TRUE)
This command doesn't work - is there a way to change it to command that R run the average of data$NumKilled when data$ForAffil = TRUE or when data$ForAffil = Yes?
r
edited Nov 12 at 11:30
markus
9,770929
asked Nov 12 at 3:26
Megan Drown
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mean(data$NumKilled if data$ForAffil = TRUE, na.rm = TRUE)
This command doesn't work - is there a way to change it to command that R run the average of data$NumKilled when data$ForAffil = TRUE or when data$ForAffil = Yes?
r
edited Nov 12 at 11:30
markus
9,770929
asked Nov 12 at 3:26
Megan Drown
1
2
there is almost certainly a way this can be done; please provide a minimal, complete, and verifiable example
– landru27
Nov 12 at 3:38
mean(data$NumKilled[data$ForAffil == TRUE], na.rm = TRUE)or simplermean(data$NumKilled[data$ForAffil], na.rm = TRUE)
– G5W
Nov 12 at 12:37
Or convert to data.table and compute. data <- as.data.table(data). Then val <- data[ForAffil == TRUE | ForAffil == “Yes”, mean(NumKilled)]
– Prevost
Nov 12 at 13:07
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
mean(data$NumKilled if data$ForAffil = TRUE, na.rm = TRUE)
This command doesn't work - is there a way to change it to command that R run the average of data$NumKilled when data$ForAffil = TRUE or when data$ForAffil = Yes?
r
edited Nov 12 at 11:30
markus
9,770929
asked Nov 12 at 3:26
Megan Drown
1
mean(data$NumKilled if data$ForAffil = TRUE, na.rm = TRUE)
This command doesn't work - is there a way to change it to command that R run the average of data$NumKilled when data$ForAffil = TRUE or when data$ForAffil = Yes?
r
r
edited Nov 12 at 11:30
markus
9,770929
asked Nov 12 at 3:26
Megan Drown
1
edited Nov 12 at 11:30
markus
9,770929
asked Nov 12 at 3:26
Megan Drown
1
edited Nov 12 at 11:30
markus
9,770929
edited Nov 12 at 11:30
markus
9,770929
edited Nov 12 at 11:30
markus
9,770929
9,770929
asked Nov 12 at 3:26
Megan Drown
1
asked Nov 12 at 3:26
Megan Drown
1
asked Nov 12 at 3:26
Megan Drown
1
1
2
there is almost certainly a way this can be done; please provide a minimal, complete, and verifiable example
– landru27
Nov 12 at 3:38
mean(data$NumKilled[data$ForAffil == TRUE], na.rm = TRUE)or simplermean(data$NumKilled[data$ForAffil], na.rm = TRUE)
– G5W
Nov 12 at 12:37
Or convert to data.table and compute. data <- as.data.table(data). Then val <- data[ForAffil == TRUE | ForAffil == “Yes”, mean(NumKilled)]
– Prevost
Nov 12 at 13:07
add a comment |
2
there is almost certainly a way this can be done; please provide a minimal, complete, and verifiable example
– landru27
Nov 12 at 3:38
mean(data$NumKilled[data$ForAffil == TRUE], na.rm = TRUE)or simplermean(data$NumKilled[data$ForAffil], na.rm = TRUE)
– G5W
Nov 12 at 12:37
Or convert to data.table and compute. data <- as.data.table(data). Then val <- data[ForAffil == TRUE | ForAffil == “Yes”, mean(NumKilled)]
– Prevost
Nov 12 at 13:07
2
2
there is almost certainly a way this can be done; please provide a minimal, complete, and verifiable example
– landru27
Nov 12 at 3:38
there is almost certainly a way this can be done; please provide a minimal, complete, and verifiable example
– landru27
Nov 12 at 3:38
mean(data$NumKilled[data$ForAffil == TRUE], na.rm = TRUE) or simpler mean(data$NumKilled[data$ForAffil], na.rm = TRUE)– G5W
Nov 12 at 12:37
mean(data$NumKilled[data$ForAffil == TRUE], na.rm = TRUE) or simpler mean(data$NumKilled[data$ForAffil], na.rm = TRUE)– G5W
Nov 12 at 12:37
Or convert to data.table and compute. data <- as.data.table(data). Then val <- data[ForAffil == TRUE | ForAffil == “Yes”, mean(NumKilled)]
– Prevost
Nov 12 at 13:07
Or convert to data.table and compute. data <- as.data.table(data). Then val <- data[ForAffil == TRUE | ForAffil == “Yes”, mean(NumKilled)]
– Prevost
Nov 12 at 13:07
add a comment |
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there is almost certainly a way this can be done; please provide a minimal, complete, and verifiable example
– landru27
Nov 12 at 3:38
mean(data$NumKilled[data$ForAffil == TRUE], na.rm = TRUE)or simplermean(data$NumKilled[data$ForAffil], na.rm = TRUE)– G5W
Nov 12 at 12:37
Or convert to data.table and compute. data <- as.data.table(data). Then val <- data[ForAffil == TRUE | ForAffil == “Yes”, mean(NumKilled)]
– Prevost
Nov 12 at 13:07