Klefsjo's IFRA
Function to compute the P-value for the observed Klefsjo's B* statistic.
klefsjo.ifra (x, alternative = "two.sided", exact=FALSE)
x |
a vector of data of length n |
alternative |
the direction of the alternative hypothesis. The choices are two.sided, ifra and dfra with the default value being two.sided. |
exact |
TRUE/FALSE value that determines whether the exact test or the large sample approximation is used if n >= 9. If n < 9 the exact test is used. The default value is FALSE, so the large sample approximation will be used unless specified not to. |
If the sample size is too large to allow for an exact value, due to duplicate coefficients, a note will be displayed and the large sample approximation will be used.
The function returns a list with two elements:
B.star |
the value of the Klefsjo statistic |
p |
the corresponding probability |
Rachel Becvarik
velocity<-c(12.8, 12.9, 13.3, 13.4, 13.7, 13.8, 14.5) klefsjo.ifra(velocity) #Example of forced Large Sample Approximation tb<-c(43, 45, 53, 56, 56, 57, 58, 66, 67, 73, 74, 79, 80, 80, 81, 81, 81, 82, 83, 83, 84, 88, 89, 91, 91, 92, 92, 97, 99, 99, 100, 100, 101, 102, 102, 102, 103, 104, 107, 108, 109, 113, 114, 118, 121, 123, 126, 128, 137, 138, 139, 144, 145, 147, 156, 162, 174, 178, 179, 184, 191, 198, 211, 214, 243, 249, 329, 380, 403, 511, 522, 598) klefsjo.ifra(tb, exact=TRUE)
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