On Thu, 2 Sep 2021, Jeff Newmiller wrote:
Regardless of whether you use the lower-level split function, or the
higher-level aggregate function, or the tidyverse group_by function, the
key is learning how to create the column that is the same for all records
corresponding to the time interval of interest.
Jeff,
I tried responding to only you but my message bounced:
<jdnew...@dcn.davis.ca.us>: host
d9300a.ess.barracudanetworks.com[209.222.82.252] said: 550 permanent
failure for one or more recipients (jdnew...@dcn.davis.ca.us:blocked) (in
reply to end of DATA command)
My response was not pertininet to the entire list, IMO, so I sent it to your
address.
Rich
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