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2010 Jan 17
2
For loops in R
Hello. I've just started using R and am trying to figure out if the two codes snippets below have the same output gBest<-floor(runif(popsize,min=1,max=top)) velocity[i,j]<<-.4* velocity[i,j] + 1 * runif(1) * (pbestsVar[i,j] - popVar[i,j]) + 1 * runif(1) * (archiveVar[gBest,j] - popVar[i,j]) and for (i in 1:popsize) { for (j in 1:maxvar) { gBest<-sample(top,size=1) velocity[i,j]<<-.4*...
2010 Jul 14
1
calling a c function from R
...some of the tutorials, I understood how to do this if the arguments are integers or floats. I am stuck when i am trying to send the files. I am attaching stub of each file. Help appreciated. Thanks --------------------------------------- My function call would be: source("parse.R") parseGBest('./gbest/inFile.seq', './gbest/outFile.out'); --------------------------------------- I wrote a wrapper function (parse.R) as follows: dyn.load("parse.so"); parseGBest = function(inFile, outFile) { .C( "parse" , inFile , outFile); } How to write receive the f...