Displaying 2 results from an estimated 2 matches for "parx".
Did you mean:
part
2004 Oct 25
1
Ref: Variable scope or function behaviour or array reassign
...lt;- of type array with original values
Step 2
for (ctr in 1:10) {
# my problem here the both x and y still show the original values from step 1
# in spite of making changes to the old values of the arrays x and y in the function
function (x,y) ???
}
step3
output < - function(parX,parY){
Variables for New X and Y
newx <- array(parX, dim=c(1,length(parX)))
newy <- array(parY, dim=c(1,length(parY)))
# make some calculation and updated some arrays element in the newX and # #newY
# finally assign the global original...
2012 Oct 19
1
Optimization in R similar to MS Excel Solver
Dear Colleagues,
I am attempting to develop an optimization routine for a river suspended
sediment mixing model. I have Calcium and Magnesium concentrations (%) for
sediments from 4 potential source areas (Topsoil, Channel Banks, Roads,
Drains) and I want to work out, based on the suspended sediment calcium and
magnesium concentrations, what are the optimal contributions from each
source area to