Hello,
First coerce the column birth to class Date, then subset.
data$birth <- as.Date(data$birth)
i <- data$birth > as.Date("1979-01-01")
subdata <- data[i, ]
To write back to Excel, use write.csv or a package able to write Excel
files directly.
Hope this helps,
Rui Barradas
Às 12:23 de 23/10/20, bgnumis bgnum escreveu:
Hi all,
I have a dataframe call "data", and have lots of rows. One of them
is data$`birth`
my data has been imported from an excel file in RSTUDIO
I want to obtain in a function all rows (with the names) where
data$`birth` is bigger than 1979/01/01 and extract in a excel file as an
output (a sub-excel of the original).
Can you guide with the functions I need to use?
I have been many time out of programming and I need a bit of help to get in
fit.
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