dplyr mutate standard deviation
mtcars = mutate(mtcars, mean=(hp+drat+wt)/3, stdev = sd(hp,drat,wt))dplyr mutate standard deviation
mtcars = mutate(mtcars, mean=(hp+drat+wt)/3, stdev = sd(hp,drat,wt))dplyr mutate standard deviation
library(dplyr)
library(matrixStats)
nm1 <- c('hp', 'drat', 'wt')
res1 <- mtcars %>%
mutate(Mean= rowMeans(.[nm1]), stdev=rowSds(as.matrix(.[nm1])))
head(res1,3)
# mpg cyl disp hp drat wt qsec vs am gear carb Mean stdev
#1 21.0 6 160 110 3.90 2.620 16.46 0 1 4 4 38.84000 61.62969
#2 21.0 6 160 110 3.90 2.875 17.02 0 1 4 4 38.92500 61.55489
#3 22.8 4 108 93 3.85 2.320 18.61 1 1 4 1 33.05667 51.91809Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
