Here’s how to upload files from S3 using R: #Create DataFrame X <- rnorm(400, mean=70, sd=10) Y <- rnorm(400, mean=3, sd=1) df <- data.frame(X,Y) #Preview head(df) #Save Locally write.csv(df, "NormalRandomizedData.csv") #Upload to S3 put_object(file = "NormalRandomizedData.

#Load the package library(zoo) #fill by last observed value full documentation: https://www.rdocumentation.org/packages/zoo/versions/1.8-8/topics/na.locf #na.rm option specifies whether leading null values should be removed na.locf(object, na.rm = TRUE, …) #Use next date rather than last date (by default fromLast=False) na.