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richarddmorey/time.R

Created December 27, 2020 22:31
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timing subsetting
Raw
time.R
library(tictoc)
df = data.frame(y = rnorm(10000000), x = rbinom(10000000,1,.5))
tic()
z = df[df$x == 1,]$y
toc()
rm(z)
tic()
z = df$y[df$x == 1]
toc()
rm(z)
rm(df)
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