How to select some rows with specific date from a data frame in R

前端未结

关注

 1  590

I have a large dataset and I want to pick out some of the rows particularly, I am wondering if anyone could help me with this? Thank you so much for your help!!

For

相关标签:

1条回答

不要未来只要你来

2021-01-07 14:50

Convert your date column to Date-type:

df$date <- as.Date(df$date)

Then subset according to your specifications:

with(df, df[(date >= "2008-01-02" & date <= "2008-01-05") | 
                                 (date >= "2008-01-09" & date <= "2008-01-11"), ])
#         date mpressure mxtemp
#2  2008-01-02    1025.6   16.0
#3  2008-01-03    1023.6   18.1
#4  2008-01-04    1021.8   18.4
#5  2008-01-05    1020.1   20.9
#9  2008-01-09    1015.3   24.5
#10 2008-01-10    1014.3   21.8
#11 2008-01-11    1012.9   23.4

0 讨论(0)