CODEWITHSUNDEEP
rdataframelubridate
윤성현
윤성현

Reputation: 31

How can I select time-range with lubridate package

How can I subtract data by time using lubridate package???

I'm working with a dataframe in R and I want to subtract a subset by time after "2016-06-01".

My data time format is "yyyy-mm-dd" and its class is Date.

I'm trying to subtract using lubridate package like:

data[ymd(data$date)>='2016-06-01']

but it doesn't work at all.

Upvotes: 1

Views: 908

Answers (1)

Mikael Poul Johannesson
Mikael Poul Johannesson

Reputation: 1349

To subset a matrix or data frame in R you have to use two arguments within single brackets [], separated by a comma. The first argument specifies the rows, and the second specifies the columns, stylized as

data[ROWS, COLS]

So to keep the rows matching your predicate, use

data[ymd(data$date) >= "2016-06-01", ]

Upvotes: 2

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