[R] How to Calculate Percentage of Data within certain SD of Mean

Ajata Paul sonjamackintire at gmail.com
Sun Feb 5 20:05:56 CET 2012


How do you calculate the percentage of data within 2SD, 3SD, 4SD, 5SD, and
6SD of the mean?  I used the following link as the data I'm working with: 
nb10 <- read.table("http://www.adjoint-functors.net/su/web/314/R/NB10") if
this helps answer my question.  Can you please explain how to calculate the
SD's?  Please be specific in which part of the function changes when
calculating the next SD up.    

Thanks.

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