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calculating std err (SEM)?

Kirk R. Wythers 
Is there a "canned" function in R for finding the standard error of the
mean? I have tried
+  SEM = stdev(x)/sqrt(length(x)))
Error in sem(pnet.lai) : couldn't find function "stdev"


It looks like there is no stdev function in R

Thanks,

Kirk



Kirk R. Wythers				email: kwythers at umn.edu
University of Minnesota			tel: 612.625.2261
Department of Forest Resources		fax: 612.625.5212
Saint Paul, MN 55108
					

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Thread (5 messages)

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