search for: samplesperday

Displaying 1 result from an estimated 1 matches for "samplesperday".

2013 Jan 12
1
How to extract value for specific rows in an array?
...value. So far I have been able to sample the max daily depth in a 1-column array using the loop below. I tried creating a new empty array for recording the date for each daily max depth value, but it doesn't seem to be working... Any ideas or suggestions? DF <- data.frame(date,day,depth) samplesperday <- 2*60*24 # number of datapoints per day (2880 here) nbdays<- nrow(DF)/samplesperday # number of days in the dataset (5 here) MaxDepth <- array(NaN,c(nbdays,1)) # create empty array where max depth values will be stored Date <- array(NaN,c(nbdays,1)) # create empty array where date...