New function collin.diag() for collinearity diagnostics including tolerance, (generalized) standard error inflation factor, (generalized) variance inflation factor, eigenvalues, conditional indices, and variance proportions for linear, generalized linear, and mixed-effects models.
New function std.coef() for computing standardized coefficients (StdX, StdY, and StdYX) for linear models estimated by using the lm() function.
New function mgsub() for multiple pattern matching and replacements, i.e., gsub() function for matching and replacing a vector of character strings.
New functions df.duplicated() and df.unique() extracting duplicated or unique rows of a matrix or data frame.
read.xlsx(), default setting of the argument progress was wrong.print.misty.object().z.test() for computing one sample, two sample, and paired sample z-test.omega.coef() does not access internal slots of a fitted lavaan object anymore (requested by Yves Rosseel).levenes.test().size.mean(), size.prop(), and size.cor() to include greek letters.theta in the size.mean() function into delta.New functions ci.mean(), ci.mean.diff(), ci.median(), ci.prop(), ci.prop.diff(), ci.sd(), ci.var() for computing confidence interval for the arithmetic mean, the difference in arithmetic means, the median, the proportion, the difference in proportions, the variance, and the standard deviation.
New function levenes.test() for conducting Levene’s test for homogeneity of variance.
New function omega.coef() for computing coefficient omega (McDonald, 1978), hierarchical omega (Kelley & Pornprasertmanit, 2016), and categorical omega (Green & Yang, 2009).
New function read.xlsx() for reading Excel files (.xlsx).
Added ordinal coefficient alpha to the function coef.alpha().
Added Kendall-Stuart’s Tau-c correlation coefficient to the function cor.matrix().
Function as.na() can also replace user-specified values with missing values in lists.
Changed the argument use in the alpha.coef() function into a logical argument na.omit.
Changed the argument pval.digits in the cor.matrix() function into p.digits.
Merged print functions print.cont.coef(), print.cramers.v(), print.na.auxiliary(), print.na.coverage(), print.phi.coef(), and print.poly.cor() into print.square.matrix()
Fixed a bug in several function, where is.vector() function was used to test if an object is a vector. Instead is.atomic() function is used to test if an object is a vector.
Fixed a bug in the function as.na(), function converted strings in data frames to factors.
trim() for removing whitespace from start and/or end of a string. Note that this function is equivalent to the function trimws() in the base package. However, the trimws() function fails to remove whitespace in some instances.Fixed a bug in the function cohens.d(), function returned NA for Cohen’s d in within-subject design in the presence of missing values
Fixed a bug in the function alpha.coef(), function did not provide any item statistics irrespective of the argument print
Fixed a bug in the function as.na(), function always generated a warning message irrespective of the argument as.na