Central Tendency estimates for variables
Minor revision of mvrnorm (from MASS
) to facilitate replication
mcGraph2 draws a 3-D representation of a scatterplot with shadows in the x1-x2 plane.
Converts the R-square to the variance inflation factor
Creates a publication quality result table for regression models.
outreg0 is the last version in the last development stream.
Create a newdata frame for usage in predict methods
Regression plots with predicted value lines, confidence intervals, color coded interactions
Tabulates observed values and calculates entropy
Calculates the delta R-squares, also known as squared
semi-partial correlation coefficients.
Calculates partial correlation coefficients after retrieving data matrix froma fitted regression model
Create a data frame suitable for estimating a model
Select focal values from an observed variable.
Convert LaTeX output from outreg to HTML markup
Prints out the contents of an object created by summarizeFactors
in the style of base::summary
Convert a half-vector (vech) into a matrix.
Select focal values from factor variables.
Multi-collinearity diagnostics
mcGraph3 draws a 3-dimensional scatter and a regression plane
Create predicted values after choosing values of predictors. Can
demonstrate marginal effects of the predictor variables.
Superimpose regression lines on a plotted plane
A way of checking if a string is a valid file name.
Returns center values of x, the mean, mean-std.dev, mean+std.dev
Create Symmetric Matrices, possibly covariance or correlation matrices, or check a matrix for symmetry and serviceability.
Illustrate the effect of multicollinearity in regression.
Sorts numeric from factor variables and returns separate
summaries for those types of variables.
Hypothesis tests for Simple Slopes Objects
Create a focal value vector.
Miscellaneous regression functions
Create correlation matrices.
Convert the vech (column of strictly lower trianglar values from a matrix) into a correlation matrix.
Generates a data frame for regression analysis
Estimate leave-one-variable-out regressions
magRange
Magnify the range of a variable.
Pad with 0's.
Draw a 3-D regression plot for two predictors from any linear or nonlinear lm or glm object
Generic function for plotting regressions and interaction effects
Calculates the "center" quantiles, always including the median, when n is odd.
formatter for merMod objects copied from lme4
Select most frequently occurring values from numeric or categorical variables.
Select focal values from a numeric variable
makeVec for checking or creating vectors
Religious beliefs and crime rates
Calculate a predicted value matrix (fit, lwr, upr) for a
regression, either lm or glm, on either link or response scale.
Create sequences for plotting
Calculates a "residual-centered" interaction regression.
Estimate standardized regression coefficients for all variables
recode a factor by "combining" levels
Find numeric columns, center them, re-name them, and join them with the original data.
Check a matrix for positive definitness
Create covariance matrix from correlation and standard deviation
information
Generates a data frame for regression analysis.
meanCenter
Plot testSlopes objects
Extracts non-numeric variables, calculates summary information,
including entropy as a diversity indicator.
Extracts numeric variables and presents an alphabetized summary in
a workable format.
Assists creation of predicted value curves for regression models.
Cheating and Looting in Japanese Electoral Politics
retrieves estimates of the coefficient of determination from a list of regressions
Creates a publication quality result table for
regression models. Works with models fitted with lm, glm, as well
as lme4.
Create a "raw" (UNTRANSFORMED) data frame equivalent to the input
data that would be required to fit the given model.
perspEmpty