
I haven't been able to get any code to make more tick marks than the default by 50.
Thanks!  Code:
hist(OMY$FL, main = "2010 Oncorhynchus mykiss Fork Length Frequencies at Buck Creek Reach 1", include.lowest = TRUE, col = "blue", border = "white", breaks = 140,xlab = "Fork Length  in  mm", ylab = "Frequency", xlim = range(0,200), ylim = range (0,15), xbar=10) 		 	   		  
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