HI Arun and all >my function is: >aj.fun <- function(j, i, X, z, E, beta0, beta1){ + n <- length(X) + iX <- order(X) + iz <- order(z) + e1 <- -(beta)*z[ iz[1:(i - 1)] ] + numer <- E[j] - sum( X[ iX[1:(i - 1)] ] * exp(e1) ) + e2 <- -(beta)*z[ iz[i:n] ] + denom <- sum( exp(e2) ) + numer/denom + } > >how excute this function > >thank you >hafida
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