summary.meqc | R Documentation |
summary
method for class meqc
.
## S3 method for class 'meqc' summary(object, ...) ## S3 method for class 'summary.meqc' print(x, ...)
object |
an object of the class |
x |
an object of class |
... |
further arguments passed to or from other methods. |
The function summary.meqc
returns a list with components
link |
character vector with names of equated forms. |
method |
the equating method used. |
coefficients |
list of data frames containing |
Michela Battauz
bisectorec
# three-parameter logistic model # direct equating coefficients using the "Stocking-Lord" method data(est3pl) test <- paste("test", 1:5, sep = "") mod3pl <- modIRT(coef = est3pl$coef, var = est3pl$var, names = test, display = FALSE) direclist3pl <- alldirec(mods = mod3pl, method = "Stocking-Lord") # compute chain equating coefficients for path 1,2,3,4 pth1 <- paste("test", 1:4, sep = "") pth1 <- data.frame(t(pth1), stringsAsFactors = FALSE) chainec1 <- chainec(direclist = direclist3pl, pths = pth1) # compute chain equating coefficients for path 1,5,4 pth2 <- c(paste("test", c(1,5,4), sep = "")) pth2 <- data.frame(t(pth2), stringsAsFactors = FALSE) chainec2 <- chainec(direclist = direclist3pl, pths = pth2) # compute chain equating coefficients for path 1,2,3,4,5 pth3 <- paste("test", 1:5, sep = "") pth3 <- data.frame(t(pth3), stringsAsFactors = FALSE) chainec3 <- chainec(direclist = direclist3pl, pths = pth3) # create a list of objects of class eqc or ceqc ecall <- c(chainec1, chainec2, chainec3, direclist3pl["test1.test5"]) # compute bisector and weighted bisector coefficients allec <- bisectorec(ecall = ecall, weighted = TRUE, unweighted = TRUE) summary(allec)
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