Dear all, I want to use the histogtam as a density estimator, with the binwidths calculated using scott's formula which is binwidth = 3.49*ST.dev.*n^(-1/3) for the following data (30 data points) 12-9-3-6-1-23-21-7-18-16-15-4-19-22-20-2-3-18-8-10-1-7-5-4-11-12-3-9-19-7 so first,I' ve tried this manually, and substituted in the above formula and I got st.dev.=7.02745 and thus the binwidth=7.89313
But when I used hist with breaks = "scott", that is h<-hist(x,breaks="scott") I got the breaks in the histogram object = 0 10 20 30 that is, the binwidth used is equal to 10 not 7.89313?? I don't know why? shouldn't they be exactly the same?? Thanks a lot, Maram. [[alternative HTML version deleted]]
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