On Oct 10, 2011, at 1:28 PM, Alaios wrote:
Dear all,
I have some device measurements and the time stamps I get from it
have the below format:
MyStruct$TimeStamps[1,]
[1] 2011.000 10.000 6.000 16.000 23.000 30.539
I can convert them easily with ISOdate() to a number and do the
calculations I need.
One of my problems is that I want to gather my measurements to piles
of duration (let's say) 5 minutes.
Afterwards I will apply a function to these piles.
As the device is not super-precise please find below the time needed
for one operation to complete (in seconds)
.....
1.10
1.90
1.34
1.23
1.56
1.22
1.34
....
Assuming I understand your presentation and lacking R-coded examples
and desired output on which to test:
?cumsum
?cut
as you understand I can not say that 5 minutes measurements are
specific to X consecutive measurements but differ. How I can ask
from R to do the summation and whenever there is a 5 minute data set
to split it so to apply it into a function?
I would like to thank you in advance for your help
--
David Winsemius, MD
West Hartford, CT
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