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2011 Aug 26
3
How to vectorize a function to handle two vectors
...lt;- c(0.9,1,1.2,1.3) tV <- c(0.1,0.4,0.5, 1) HestonCallVec <- function(phi, kVec, t) { sapply(kVec, function(k){Price_call(phi, k, t)}) } HestonCallVec(phiHeston(subHeston), kV, 1) subHeston <- c(0.6067,-0.7571,0.2928,0.0707,0.0654); kV <- c(0.9,1,1.2,1.3) tV <- c(0.1,0.4,0.5, 1) HestonCallVec2 <- function(phi, kVec, tVec) { sapply(tVec, function(t){HestonCallVec(phi, kVec, t)}) } HestonCallVec2(phiHeston(subHeston), kV, tV) # This should give 4 values This is what I tried for the mapply function, which returns a list, instead of values. HestonCallVec <- function(phi, kVec, t) { m...