Support for Linear Models


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Documentation for package ‘lmSupport’ version 1.07

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lm.boxCox Calculates lambda for Box-Cox power transformation
lm.caseAnalysis Provides graphs and/or tests for problematic cases for a linear model
lm.codeRegressors Adds mechanical regressors for factor to dataframe as variables
lm.correctSE Calculates White (1980)'s heteroscedascity-corrected SEs and Tests for a linear model
lm.deltaR2 F-tests for model R2s and delta R2
lm.describeData Provides typical descriptive statistics for data frame
lm.describeGroups Provides common desriptives for single DV by factor(s)
lm.figSum Creates histogram, optional rug and density plots, and generates univariate descriptive statistics
lm.mergeData Merges two data frames
lm.mixedBar Creates bar graph for mixed model design
lm.mixedMeans Creates estimated mean and SE matrices from list of lm models
lm.modelAssumptions Assess Linear Model Assumptions
lm.pointEstimates Provides point estimates and SEs from linear model
lm.readDat Opens a tab-delimited dat file with typical Curtin lab settings
lm.removeCases Removes cases from dataframe
lm.renameVar Rename Variable in Dataframe
lm.setContrasts Set Factor Contrasts
lm.setRownames Sets rownames to SubID
lm.stripChart Create strip chart on plot
lm.sumSquares Calculates descriptive statistics based on Sums of Squares
lm.writeDat Saves dataframe as tab-delimited text file with typical Curtin lab parameters