search for: oldsum

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2009 Aug 19
3
R function for Probabilities for the (standard) normal distribution
...= 1/ 2 + ( 1/ sqrt(2¦Ð) ) * ¡Æ (-1)^k*z^(2k+1) / (2^k*k! *(2k+1)) (¡Æ is from n=0 to ¡Þ) I know how to write the R function for exponential function e^x expf = function (x) { x=ifelse((neg=(x<0)),-x,x) n=0;term=1 oldsum=0; newsum=1 while(any(newsum != oldsum)) { oldsum=newsum n=n+1 term = term*x/n newsum = newsum+term} ifelse(neg, 1/newsum, newsum) } I know it will be similar to the above c...
2002 Nov 16
0
Wishlist: allow NA values in medpolish (package 'eda') (PR#2298)
...002 @@ -1,4 +1,5 @@ -medpolish <- function (x, eps=0.01, maxiter=10, trace.iter = TRUE) +medpolish <- function (x, eps=0.01, maxiter=10, trace.iter = TRUE, + na.rm = FALSE) { z <- as.matrix(x) nr <- nrow(z) @@ -8,19 +9,19 @@ c <- numeric(nc) oldsum <- 0 for(iter in 1:maxiter) { - rdelta <- apply(z, 1, median) + rdelta <- apply(z, 1, median, na.rm = na.rm) z <- z - matrix(rdelta, nr=nr, nc=nc) r <- r + rdelta - delta <- median(c) + delta <- median(c, na.rm = na.rm) c &lt...