[R] Error with paired t-test

[Pascal Oettli]

Hi,

The error message is explicit enough. You need 'y' for the paired test.

with(payoff, t.test(Open, Closed1, paired=TRUE))

HTH,
Pascal


On 25/03/13 07:42, Charlotte Rayner wrote:
> This error keeps appearing when i perform a paired t-test in R
> Error in t.test.default(payoff, paired = T) :   'y' is missing for paired test
> This is the method i have used
>> read.table("MeanPayoff.txt",header=T)       Open  Closed1  47.50000 42.37502  49.25000 50.00003  50.00000 49.80004  33.50000 20.00005  34.75000 33.88006  35.50000 20.50007  33.35000 12.87508  50.00000 22.50009  47.15625 34.937510 44.38000 43.250011 50.00000 47.500012 42.12500 26.750013 27.35000 26.625014 31.75000 36.5000
> attach(payoff)names(payoff)t.test(payoff,paired=T)
> then the error keeps coming up
> Please help
> Charlotte
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