I have two columns for speed ('Smoothed velocity') and Spacing. What I want to
do is to first create the intervals of speed (minimum value=0, max value=
85.53), group the Spacing values falling in a particular Speed interval, find
the average of the Spacing for an interval and finally plot the average spacing
of each interval against the mid-point of the Speed interval. I want to have
fixed intervals of 4.5 feet per second, i.e. 0-4.5, 4.5-9,......xx-85.53.After
hours of search I found a function for creating intervals called
classIntervals() but I can't figure out how to create fixed intervals of 4.5.
Here is what I tried:classIntervals(s21[,'Smoothed velocity'], style='fixed',
fixedBreaks=4.5)But the results were unexpected and there was a Warning
message:In classIntervals(s21[, "Smoothed velocity"], style = "fixed",
fixedBreaks = 4.5) :
variable range greater than fixedBreaksEven after intervals are created, I
need to group spacing and find the avg. for every interval. How can I do this?
I have tried what I could, please help
Umair Durrani
email: umairdurr...@outlook.com
[[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.
