objct Timestamp not found when sort_by

Asked Sep 21 '17 at 07:53

Active Sep 21 '17 at 07:53

Viewed 16 times

I have this kind of data:

Timestamp    Value   Name
10/09/17     15       A
10/09/17     1000     A   
11/09/17     15       B
11/09/17     1000     B
....

I want to find out which Names contain the value 1000 at which timestamps.

I tried:

tdata <- df %>% group_by(Name) %>% filter(value == 1000)

which works, but when I try to sort by Timestamp:

 tdata <- df %>% group_by(Name) %>% filter(value == 1000) %>% sort_by(Timestamp)

it shows Error in as)_function(.f, ...) :object 'Timestamp' not found

asked Sep 21 '17 at 07:53

George

Do you need `arrange` ? `df %>% group_by(Name) %>% filter(Value == 1000) %>% arrange(Timestamp)` ? or you can use `desc` to sort it in descending order. – Ronak Shah Sep 21 '17 at 08:09
what is `sort_by`?. I never seen that function before – Sotos Sep 21 '17 at 08:13
@RonakShah:Yes!I wanted arrange as I can see, thanks.Please, make it an answer – George Sep 21 '17 at 08:17
@Sotos:I just wanted to sort by timestamp, but arrange is doing the job. – George Sep 21 '17 at 08:18

0 Answers0