[R] How to calculate standard error for a vector?

[Spencer Graves]

      Have you read "An Introduction to R" and "The R Language 
Definition" that comes with the R installation?  Try "help.start()".  
Also, there are several good introductions downloadable from 
"www.r-project.org".  I suggest you also consider "lm" = linear model, e.g.,

      fit <- lm(y~x, dataFrame)  # where "y" and "x" are columns of the 
data.frame "dataFrame"
      fit
      summary(fit)
      anova(fit)

      Also, try "help.search('t test')".  A more specific question may 
yield a more specific answer, especially if accompanied by a few lines 
of R code providing a toy example that you've tried and couldn't make 
work. 

      hope this helps.      
      spencer graves

Laurent Houdusse wrote:

>Hi all!
>
>I 'm beginner and i develop a bio-application with VB and i need some
>statistic functions!
>could i calculate StdError, CoeffOfVariance, SumSquared with R langage? if
>yes, what are functions to use?
>
>I need also to use ANOVA and t-test...
>
>Thanks for your help!
>
>
>
>Laurent Houdusse 
>Analyste Programmeur
>
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