How to use this command in R for a range of numbers?
PR01 <- Pra_Ruz[grep("-01-", Pra_Ruz$Date), ]
I mean
PR01 <- Pra_Ruz[grep("-01-", Pra_Ruz$Date), ]
PR02 <- Pra_Ruz[grep("-02-", Pra_Ruz$Date), ]
PR03 <- Pra_Ruz[grep("-03-", Pra_Ruz$Date), ]
PR04 <- Pra_Ruz[grep("-04-", Pra_Ruz$Date), ]
....
It is easier to help if you provide data in a reproducible format with expected output.
Consider this as your data -
Pra_Ruz <- data.frame(Date = as.Date(c('2012-01-31', '2020-12-28',
'2015-10-11', '2014-04-16', '2016-03-22')), a = 1:5)
Pra_Ruz
# Date a
#1 2012-01-31 1
#2 2020-12-28 2
#3 2015-10-11 3
#4 2014-04-16 4
#5 2016-03-22 5
You can specify the range in regex using [1-4]
Pra_Ruz[grep("-0[1-4]-", Pra_Ruz$Date), ]
# Date a
#1 2012-01-31 1
#4 2014-04-16 4
#5 2016-03-22 5
Another option -
If these are date objects you can extract the month value from it and then subset.
Pra_Ruz[as.integer(format(Pra_Ruz$Date, '%m')) %in% 1:4, ]
If you want to split the datasets in multiple individual dataframes
data <- split(Pra_Ruz, format(Pra_Ruz$Date, '%m'))
names(data) <- paste0('PR', names(data))
list2env(data, .GlobalEnv) #Not recommended, do only if necessary.
