Hi all,

I'm working to apply a function that will generate a matrix of results only
when a specific criteria is met.

I want my final results to be a matrix with both the values that meet the
criteria (the results of the function), and those that to do in the same
positions in the matrix (the original numbers).

Here's a sample of what I would like to do:

t.mean.1.c <- c(-15, -20, -30, -20, -25, -35, -40, -8, 9, 10)
cdem <- c(300, 400, 700, 900, 1000, 250, 200, 300, 500, 650, 650, 1200,
1400, 3200, 2000)
cdem.mat <- matrix(NA, 10, 15)
cdem.mat <- cdem.mat(sapply(cdem[which(cdem >= 900)], function(x)
get("t.mean.1.c") - (x * -0.0065)))

I want cdem.mat to be the same size as the the first call of it, with NA
values where the cdem is < 899. I thought this would fill it in but it
seems to just over write it and I only end up with the rows where cdem is
greater than 900.

Thank you,

Katrina



-- 
Katrina E. Bennett
PhD Student
University of Alaska Fairbanks
International Arctic Research Center
930 Koyukuk Drive, PO Box 757340
Fairbanks, Alaska 99775-7340
907-474-1939 office
907-385-7657 cell
kebennett@alaska.edu


Personal Address:
UAF, PO Box 752525
Fairbanks, Alaska 99775-2525
bennett.katrina@gmail.com

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