Hello! In the example below the Reduce() function by default assigns "a" to be the last accumulated value and "b" to be the current value in "x". I could not find this documented anywhere as the default settings for the Reduce() function. Does any sort of documentation for this behavior exist? x <- c(0,0,0,0,0,1,0,0,0,5,0,0,0,7,0,0,0,8,5,10) Reduce(function(a,b) b + (a * 0.5),x,accumulate=T,init=0) [1] 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 1.0000000 0.5000000 0.2500000 [10] 0.1250000 5.0625000 2.5312500 1.2656250 0.6328125 7.3164062 3.6582031 1.8291016 0.9145508 [19] 8.4572754 9.2286377 14.6143188 Thanks a lot!
Dimitri Liakhovitski Ninah Consulting www.ninah.com