How to change the number of bins in "hist" function?

?hist will tell you
...
breaks: one of:

             *  a vector giving the breakpoints between histogram
                cells,

             *  a single number giving the number of cells for the
                histogram,

             *  a character string naming an algorithm to compute the
                number of cells (see Details),

             *  a function to compute the number of cells.

          In the last three cases the number is a suggestion only.



2006/2/17, Michael <comtech.usa at gmail.com>:

Hi all,

I am doing histogram using the "hist" function. For some reason, the
histogram does not look good... is there a way I can change the number of
bins, and/or change the way that data gets binned... so that I can obtain a
better looking histogram?

Thanks a lot!

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