Dear all,
I am having a matrix that stores data information in the following format.
> roofPart1$TimeStamps[1:5,]
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] 2011 7 21 15 25 20.609
[2,] 2011 7 21 15 25 23.265
[3,] 2011 7 21 15 25 26.000
[4,] 2011 7 21 15 25 28.671
[5,] 2011 7 21 15 25 31.343
I would like to be able to report some simple statistics based on the time
differences of two entries. For example to check the time consistency (was my
device measuring at same intervals ?)
I think the easiest would be to convert the matrix above to pure seconds and
then just substract them
so something like that ...
makeSeconds(roofPart1$TimeStamps[1:5,2])-makeSeconds(roofPart1$TimeStamps[1:5,1])
makeSeconds(roofPart1$TimeStamps[1:5,3])-makeSeconds(roofPart1$TimeStamps[1:5,2])
makeSeconds(roofPart1$TimeStamps[1:5,4])-makeSeconds(roofPart1$TimeStamps[1:5,3])
Do you know which are the functions for that? A) convert time stamps to
seconds, B) substract the concecutive elements of the seconds matrix
I would like to thank you in advance for your help
B.R
Alex
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