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Accuracy of Judgments/Predictions

accuracyAtCutoff()
Accuracy at a Given Cutoff.
accuracyAtEachCutoff()
Accuracy at Each Cutoff.
accuracyOverall() wisdomOfCrowd()
Overall Accuracy.
nomogrammer()
Create Nomogram.
optimalCutoff()
Optimal Cutoff.
posttestOdds() posttestProbability()
Posttest Odds & Probability.

Assessment and Scoring

Behavior Frequency

Behavior Intensity

Research Electronic Data Capture (REDCap)

redcapProgressBar()
Progress Bar for REDCap.

Bayesian

Correlation

addText()
Add Correlation to Scatterplot.
attenuationCorrelation()
Attenuation of True Correlation Due to Measurement Error.
cor.table()
Correlation Matrix.
crossTimeCorrelation()
Cross-Time Correlations.
crossTimeCorrelationDF()
Cross-Time Correlations Dataframe.
disattenuationCorrelation()
Disattenuation of Observed Correlation Due to Measurement Error.
partialcor.table()
Partial Correlation Matrix.
vwReg()
Visually Weighted Regression.

Data Management

Computations

meanSum()
Mean Sum.
Mode()
Statistical Mode.
mySum()
My Sum.
kish_ess() wquantile_generic() whdquantile() wthdquantile() wquantile()
Weighted Quantiles.

Conversion

convert.magic()
Convert Variable Types.
convertHoursAMPM()
Convert AM and PM Hours.
percentileToTScore()
Percentile to T-Score Conversion.
pom()
Proportion of Maximum (POM).
convertToHours()
Convert Time to Hours.
convertToMinutes()
Convert Time to Minutes.
convertToSeconds()
Convert Time to Seconds.
reverse_score()
Reverse Score Variables.

Data Evaluation

not_all_na()
Any Rows Not NA.
dropColsWithAllNA()
Drop NA columns.
dropRowsWithAllNA()
Drop NA rows.
is.nan(<data.frame>)
NaN (Not a Number).
not_any_na()
Not Any NA.

Data Manipulation

columnBindFill()
Column Bind and Fill.
convert.magic()
Convert Variable Types.
dropColsWithAllNA()
Drop NA columns.
dropRowsWithAllNA()
Drop NA rows.
varsDifferentTypes()
Identify Variables of Different Types.

Encryption

read.aes()
Read Encrypted Data.
write.aes()
Write Encrypted Data.

Formatting Values

apa()
APA Format
pValue()
p-values.
specify_decimal()
Specify Decimals.
suppressLeadingZero()
Suppress Leading Zero.

Handling Time Data

convertHoursAMPM()
Convert AM and PM Hours.
convertToHours()
Convert Time to Hours.
convertToMinutes()
Convert Time to Minutes.
convertToSeconds()
Convert Time to Seconds.

Operators

`%ni%`
NOTIN Operator.

Grants

Lab

setLabPath()
Set Lab Path.

Latent Variable Modeling

Factor Analysis

my_loadings_sorter()
Sorts loadings from exploratory factor analysis.

Item Response Theory (IRT)

fourPL()
4-Parameter Logistic Curve.
discriminationToFactorLoading()
Discrimination (IRT) to Standardized Factor Loading.
test_info_4PL() error_variance_4PL() reliability_4PL()
Test Information from Logistic IRT Model.
deriv_d_negBinom() d_negBinom() log_gen_binom() deriv_logd_negBinom() info_neg_binom_analytical() item_info_NB_zero_analytical() item_info_NB_analytical() test_info_NB() error_variance_NB() reliability_NB()
Item and Test Information from Zero-Inflated Negative Binomial Model.
itemInformation()
Item Information.
reliabilityIRT()
Reliability (IRT).
standardErrorIRT()
Standard Error of Measurement (IRT).

Structural Equation Modeling (SEM)

make_esem_model()
Make ESEM Model.
equiv_chi()
Chi-Square Equivalence Test for Structural Equation Models.
puc()
Percent of Uncontaminated Correlations (PUC).
satorraBentlerScaledChiSquareDifferenceTestStatistic()
Satorra-Bentler Scaled Chi-Square Difference Test Statistic.
semPlotInteraction()
Plot interaction from SEM model.

Miscellaneous

Fantasy Football

cleanUpNames()
Clean Up Player Names For Merging.

Personal Finance

mortgage()
Mortgage Principal and Interest.

Missing Data Handling

Multiple Imputation

imputationCombine()
Combine Results from Mixed Effect Imputation Models.
imputationModelCompare()
Compare Mixed Effect Imputation Models.
imputationPRV()
Proportional Reduction of Variance from Imputation Models.
lmCombine()
Combine Results from Multiple Regression Imputation Models.

Multiple Regression

lmCombine()
Combine Results from Multiple Regression Imputation Models.
plot2WayInteraction()
Plot 2-way interaction.
ppPlot()
PP Plot.
update_nested()
Update Nested Models in Hierarchical Regression.

Packages

load_or_install()
Load or Install Packages.
getDependencies()
Package Dependencies.

Plotting

addText()
Add Correlation to Scatterplot.
plot2WayInteraction()
Plot 2-way interaction.
ppPlot()
PP Plot.
vwReg()
Visually Weighted Regression.

Psychometrics

Reliability

Regression

Mixed Model

lmeSummary()
Summarize mixed effects model.

Simulation

simulateAUC()
Simulate Area Under the ROC Curve (AUC).
complement()
Simulate Complement Variable.
simulateIndirectEffect()
Simulate Indirect Effect.

Time Data

convertHoursAMPM()
Convert AM and PM Hours.
convertToHours()
Convert Time to Hours.
convertToMinutes()
Convert Time to Minutes.
convertToSeconds()
Convert Time to Seconds.



Developmental Psychopathology Lab