search for: outertest

Displaying 2 results from an estimated 2 matches for "outertest".

Did you mean: outermost
Efficient way to subset rows in R for dataset with 10^7 columns
2018 Apr 14
2
Efficient way to subset rows in R for dataset with 10^7 columns
I have a data.table with dimensions 100 by 10^7. When I do trainIndex <- caret::createDataPartition( df$status, p = .9, list = FALSE, times = 1 ) outerTrain <- df[trainIndex] outerTest <- df[-trainIndex] Subsetting the rows of df takes over 20 minutes. What is the best way to efficiently subset this? Thanks! [[alternative HTML version deleted]]
Efficient way to subset rows in R for dataset with 10^7 columns
2018 Apr 14
0
Efficient way to subset rows in R for dataset with 10^7 columns
...> >> > trainIndex <- >> > caret::createDataPartition( >> > df$status, >> > p = .9, >> > list = FALSE, >> > times = 1 >> > ) >> > outerTrain <- df[trainIndex] >> > outerTest <- df[-trainIndex] >> > >> >Subsetting the rows of df takes over 20 minutes. >> > >> >What is the best way to efficiently subset this? >> > >> >Thanks! >> > >> > [[alternative HTML version deleted]] >> > >...