[R] Two sample t-test

[michael watson (IAH-C)]

Why are you using "skip=2"?

Try:

read.csv(""c://test.csv",header="T",eomment.char="")


-----Original Message-----
From: r-help-bounces at r-project.org on behalf of Claire_6700
Sent: Sun 09/03/2008 12:55 PM
To: r-help at r-project.org
Subject: [R]  Two sample t-test
 

Hi,

I want to perform t-test in R for each individual car. Here is what i have.
Is there a way i can test each car?


The original table (test.csv)

Car	Tester2	Tester2	Controller1	Controller2
Audi	0.56	0.9	0.5	0.9
Toyota	0.2	0.9	0.9	0.2
Honda	0.5	0.9	0.1	0.5
BMW	0.2	0.3	0.5	0.7


> cars<-read.table("c://test.csv",header=T,sep=",",
+ skip=2,comment.char="")
> cars
  Toyota X0.2 X0.9 X0.9.1 X0.2.1
1  Honda  0.5  0.9    0.1    0.5
2    BMW  0.2  0.3    0.5    0.7
> head(cars)
  Toyota X0.2 X0.9 X0.9.1 X0.2.1
1  Honda  0.5  0.9    0.1    0.5
2    BMW  0.2  0.3    0.5    0.7

why is R only showing two cars when i type head?

many thanks.
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