Hi, everyone.
I stumbled upon weird histogram behaviour. Consider this "dice emulator": Step 1: Generate uniform random array x of size N. Step 2: Multiply each item by six and round to next bigger integer to get numbers 1 to 6. Step 3: Plot histogram. > x<-runif(N) > y<-ceiling(x*6) > hist(y,freq=TRUE, col='orange') Now what I get with N=100000 > x<-runif(100000) > y<-ceiling(x*6) > hist(y,freq=TRUE, col='green') At first glance looks OK. Now try N=100 > x<-runif(100) > y<-ceiling(x*6) > hist(y,freq=TRUE, col='red') Now first bar is not where it should be. Hmm. Look again to 100000 histogram... First bar is not where I want it, it's only less striking due to narrow bars. So, first bar is always in wrong position. How do I fix it to make perfectly spaced bars?
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