Tail Probability for t-distribution

Tail Probability for t-distribution

Usage

iscamtprob(xval, df, direction, xval2 = NULL)

Arguments

xval

observed value.

df

degrees of freedom.

direction

direction for probability calculation, "above" or "below"; if "outside" or "between" are used, a second larger observation, xval2 must be specified

xval2

second observation value.

Value

The tail probability in the specified direction using the given parameters.

Examples

iscamtprob(xval = -2.05, df = 10, direction = "below")

#> probability: 0.03375 
iscamtprob(xval = 1.80, df = 20, direction = "above")

#> [1] 1.8
#> [1] 5
#> probability: 0.04348 
iscamtprob(xval = -2, xval2 = 2, df = 15, direction = "between")

#> probability: 0.9361 
iscamtprob(xval = -2.5, xval2 = 2.5, df = 25, direction = "outside")

#> probability: 0.01934