Displaying 2 results from an estimated 2 matches for "maply".
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mapply
2009 Nov 20
1
Bessel function with large index value
I am looking for a method of dealing with the modified Bessel function
K_\nu(x) for large \nu.
The besselK function implementation of this allows for dealing with
large values of x by allowing for exponential scaling, but there is no
facility for dealing with large \nu.
What would work for me would be an lbesselK function in the manner of
lgamma which returned the log of K_\nu(x) for large
2012 Sep 02
0
most efficient plyr solution
...for the input would seem beneficial for speed
Q3: parallelization of the iterative process seems to make sense.
Q4: a progress bar seems to save peace of mind having no clue of the runtime.
Q5: avoidance of an output transform to get array from vector
Q6: for Q2/3/4/5 plyr seems to be ideal (e.g. maply)
Please also find some solutions below.
solution 1: using mapply
solution 2: using lapply
solution 3: using mclapply
attempt 4: stuck on plyr implementation
--Philip
### CODE START ###
Ax <- matrix(c(2,3,5,6,
3,7,8,9,
8,2,1,3), ncol = 4)
Ay <- matrix(c(9,8...