Central Tendency estimates for variables
Select most frequently occurring values from numeric or categorical variables.
Prints out the contents of an object created by summarizeFactors
in the style of base::summary
Reformat numeric summarize output as one column per variable,
similar to R summary
Create covariance matrix from correlation and standard deviation
information
Select focal values from an observed variable.
Estimate leave-one-variable-out regressions
Minor revision of mvrnorm (from MASS) to facilitate replication
Calculates partial correlation coefficients after retrieving data matrix froma fitted regression model
Create a "raw" (UNTRANSFORMED) data frame equivalent to the input
data that would be required to fit the given model.
Create a data frame suitable for estimating a model
Create a newdata frame for usage in predict methods
Convert LaTeX output from outreg to HTML markup
Superimpose regression lines on a plotted plane
Pad with 0's.
Find numeric columns, center them, re-name them, and join them with the original data.
Calculates the "center" quantiles, always including the median, when n is odd.
recode a factor by "combining" levels
Create an ordinal variable by grouping numeric data input.
Create a uniquely named directory. Appends number & optionally date to directory
name.
Summary stats table-maker for regression users
Sorts numeric from discrete variables and returns separate
summaries for those types of variables.
Create a focal value vector.
Extracts non-numeric variables, calculates summary information,
including entropy as a diversity indicator.
Illustrate multicollinearity in regression, part 1.
Converts the R-square to the variance inflation factor
meanCenter
Generate correlated data for simulations (third edition)
Generate correlated data (predictors) for one unit
retrieves estimates of the coefficient of determination from a list of regressions
Creates a cross tabulation with counts and percentages
A way of checking if a string is a valid file name.
Group Mean Center: Generate group summaries and individual deviations within groups
perspEmpty
Religious beliefs and crime rates
Remove NULL values variables from a list
Check a matrix for positive definitness
Calculates the delta R-squares, also known as squared
semi-partial correlation coefficients.
Generates a data frame for regression analysis
Creates a publication quality result table for
regression models. Works with models fitted with lm, glm, as well
as lme4.
magRange
Magnify the range of a variable.
Creates a publication quality result table for regression models.
outreg0 is the last version in the last development stream.
Generates a data frame for regression analysis.
Plot testSlopes objects
Create sequences for plotting
Create Symmetric Matrices, possibly covariance or correlation
matrices, or check a matrix for symmetry and serviceability.
Assists creation of predicted value curves for regression models.
Calculate excess kurtosis
Calculate a predicted value matrix (fit, lwr, upr) for a
regression, either lm or glm, on either link or response scale.
Generic function for plotting regressions and interaction effects
Create predicted values after choosing values of predictors. Can
demonstrate marginal effects of the predictor variables.
Calculates a "residual-centered" interaction regression.
Create correlation matrices.
rockchalk: regression functions
Convert the vech (column of strictly lower trianglar values from a matrix) into a correlation matrix.
Regression plots with predicted value lines, confidence intervals, color coded interactions
makeVec for checking or creating vectors
Convert a half-vector (vech) into a matrix.
Multi-collinearity diagnostics
print method for summary.pctable objects
Draw a 3-D regression plot for two predictors from any linear or nonlinear lm or glm object
Calculate skewness
Display pctable objects
Stack together data frames
Estimate standardized regression coefficients for all variables
print method for output from summarize
Extract presentation from a pctable object
Extracts numeric variables and presents an summary in
a workable format.
Hypothesis tests for Simple Slopes Objects
Tabulates observed values and calculates entropy
T-test for the difference in 2 regression parameters
Cheating and Looting in Japanese Electoral Politics
Returns center values of x, the mean, mean-std.dev, mean+std.dev