On 02/19/2011 08:50 AM, Julie McWhorter wrote:

Thank you Joshua and Jim--I got the tick marks on finally!
One last question: I am supposed to make bins in 1, 2 and 5 mm increments for 
fish up to 170 mm.  I assume these are the breaks?  So breaks = 170 for 1 mm 
and 340 for 2 mm and 1550 for 5 mm?  I couldn't find any specific examples in 
the R manual.  The problem is I don't think that is correct, as the histogram 
disappears at breaks = 1550.

Hi Julie,
Not quite. I would guess:

breaks=0:170
breaks=seq(0,170,by=2)
breaks=seq(0,170,by=5)

I'm not surprised that something went wrong with 1550 breaks.

Jim

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