Jeff - Thanks so very much for the solution and tips, all very much
appreciated! Regards, Stevan
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Dear R Community,
I am having some trouble with a task that I hope you might be able to help
with. I have a dataset that includes the time and corresponding stream
discharge from numerous storms (example of structure with simplified data
below). I would like to produce a field that details the
incorporating data subset lengths in function with ddply
Dear R Community,
I am having some trouble with a task that I hope you might be able to help
with. I have a dataset that includes the time and corresponding stream
discharge from numerous storms (example of structure with simplified data
Hi Frede - Thank you for responding. Not quite what I am after. Notice that I
included two data sets in my post, the first is the raw data whereas the
second (the desired df) is similar but has a column of sequential numbers in
another column at the end - that column of sequential numbers for each
Note that ddply is a heavyweight solution, and as your data gets larger
you may find that using it for little things like this hits performance.
Also, df is a base function that you might actually want to use someday,
and you also introduce confusion in the mind of someone reading your code
if
Note that the solution you asked for is not robust in the presence of missing
data, though Frede's suggestion or something like it would be.
---
Jeff NewmillerThe . . Go Live...
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