[R] shapiro-wilks test

[Sukhaswami Malladi]

Hello,

I am a newbie to R. I would like to test my data for normality using the
Shapiro-Wilks
test. How do I go about it ?

My data is in form of a table with 2 columns - colA, colB and I want to know
if
colB values are a normal distribution.

First I read the data into R using 
d <- read.table("tab.dat",header=T)

Then if I type 
shapiro.test(d)

I get the error message: 

Error in "[.data.frame"(x, complete.cases(x)) : 
        undefined columns selected

and if I type 
shapiro.test(d.colB)

I get message:

Error in inherits(x, "factor") : Object "d.colB" not found

What is the correct syntax and how do I obtain this syntax from any help
documentation ?

Any suggestion is greatly appreciated.

Thanks

Sukhaswami Malladi



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