Dear R helpers
I have a dataframe as
df = data.frame(x = c(1, 14, 3, 21, 11), y = c(102, 500, 40, 101, 189))
> df
x y
1 1 102
2 14 500
3 3 40
4 21 101
5 11 189
# Actually I am having dataframe having multiple columns. I am just giving an
example.
I need to subtract all the rows of df by the first row of df i.e. I need to
subtract each element of 'x' column by 1. Likewise I need to subtract all
elements of column 'y' by 11. Thus I need an output like
> df_new
x y
1 0 0
2 13 398
3 2 -62
4 20 -1
5 10 87
As I had mentioned above, I have number of columns in reality and thus I can't
use the command
say
df_new = data.frame(x = df$x-df$x[1], y = df$y-df$y[1])
Kindly guide
Thanking you all in advance
Regards
Vincy
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
