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.

- Fixed a bug in the function
`read.xlsx()`

, default setting of the argument`progress`

was wrong.

- Merged all print functions to a single print function called
`print.misty.object()`

.

- New function
`z.test()`

for computing one sample, two sample, and paired sample z-test.

- Function
`omega.coef()`

does not access internal slots of a fitted lavaan object anymore (requested by Yves Rosseel).

- Added descriptive statistics and confidence intervals to the function
`levenes.test()`

. - Changed the output of the functions
`size.mean()`

,`size.prop()`

, and`size.cor()`

to include greek letters. - Changed the argument
`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.

- New function
`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 valuesFixed 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`