Psychometric Functions from the Waller Lab

ACL | Adjective Checklist Data. |

adfCor | Asymptotic Distribution-Free Covariance Matrix of... |

adfCov | Asymptotic Distribution-Free Covariance Matrix of Covariances |

alphaR | Generate random R matrices with a known coefficient alpha |

AmzBoxes | Length, width, and height measurements for 98 Amazon shipping... |

BadRBY | Improper correlation matrix reported by Bentler and Yuan |

BadRJN | Improper R matrix reported by Joseph and Newman |

BadRKtB | Improper R matrix reported by Knol and ten Berge |

BadRLG | Improper R matrix reported by Lurie and Goldberg |

BadRRM | Improper R matrix reported by Rousseeuw and Molenberghs |

BiFAD | Bifactor Analysis via Direct Schmid-Leiman (DSL)... |

bigen | Generate Correlated Binary Data |

Boruch70 | Multi-Trait Multi-Method correlation matrix reported by... |

Box20 | Length, width, and height measurements for Thurstone's 20... |

Box26 | R matrix for Thurstone's 26 hypothetical box attributes. |

cb | Cudeck & Browne (1992) model error method |

cfi | Calculate CFI for two correlation matrices |

CompleteRcvx | Complete a Partially Specified Correlation Matrix by Convex... |

CompleteRdev | Complete a Partially Specified Correlation Matrix by the... |

CompleteRmap | Complete a Partially Specified Correlation Matrix by the... |

corDensity | Generate the marginal density of a correlation from a... |

corSample | Sample Correlation Matrices from a Population Correlation... |

corSmooth | Smooth a Non PD Correlation Matrix |

cosMat | Compute the cosine(s) between either 2 matrices or 2 vectors. |

d2r | Convert Degrees to Radians |

eap | Compute eap trait estimates for FMP and FUP models |

eigGen | Generate eigenvalues for R matrices with underlying component... |

enhancement | Find OLS Regression Coefficients that Exhibit Enhancement |

erf | Utility fnc to compute the components for an empirical... |

faAlign | Align the columns of two factor loading matrices |

faBounds | Bounds on the Correlation Between an External Variable and a... |

faEKC | Calculate Reference Eigenvalues for the Empirical Kaiser... |

faIB | Inter-Battery Factor Analysis by the Method of Maximum... |

faLocalMin | Investigate local minima in faMain objects |

fals | Unweighted least squares factor analysis |

faMain | Automatic Factor Rotation from Random Configurations with... |

faMAP | Velicer's minimum partial correlation method for determining... |

faMB | Multiple Battery Factor Analysis by Maximum Likelihood... |

fapa | Iterated Principal Axis Factor Analysis (fapa) |

fareg | Regularized Factor Analysis |

faScores | Factor Scores |

faSort | Sort a factor loadings matrix |

faStandardize | Standardize the Unrotated Factor Loadings |

faX | Factor Extraction (faX) Routines |

FMP | Estimate the coefficients of a filtered monotonic polynomial... |

FMPMonotonicityCheck | Utility function for checking FMP monotonicity |

fsIndeterminacy | Understanding Factor Score Indeterminacy with Finite... |

fungible | Generate Fungible Regression Weights |

fungibleExtrema | Locate Extrema of Fungible Regression Weights |

fungibleL | Generate Fungible Logistic Regression Weights |

fungibleR | Generate Fungible Correlation Matrices |

FUP | Estimate the coefficients of a filtered unconstrained... |

gen4PMData | Generate item response data for 1, 2, 3, or 4-parameter IRT... |

genCorr | Generate Correlation Matrices with User-Defined Eigenvalues |

GenerateBoxData | Generate Thurstone's Box Data From length, width, and height... |

genFMPData | Generate item response data for a filtered monotonic... |

genPhi | Create a random Phi matrix with maximum factor correlation |

get_wb_mod | Find an 'lm' model to use with the Wu & Browne (2015) model... |

HS9Var | 9 Variables from the Holzinger and Swineford (1939) Dataset |

HW | Six data sets that yield a Heywood case |

irf | Plot item response functions for polynomial IRT models. |

itemDescriptives | Compute basic descriptives for binary-item analysis |

Jackson67 | Multi-Trait Multi-Method correlation matrix reported by... |

kurt | Calculate Univariate Kurtosis for a Vector or Matrix |

Ledermann | Ledermann's inequality for factor solution identification |

Malmi79 | Multi-Trait Multi-Method correlation matrix reported by... |

monte | Simulate Clustered Data with User-Defined Properties |

monte1 | Simulate Multivariate Non-normal Data by Vale & Maurelli... |

noisemaker | Simulate a population correlation matrix with model error |

normalCor | Compute Normal-Theory Covariances for Correlations |

normF | Compute the Frobenius norm of a matrix |

obj_func | Objective function for optimizing RMSEA and CFI |

Omega | Compute Omega hierarchical |

orderFactors | Order factor-loadings matrix by the sum of squared factor... |

plot.monte | Plot Method for Class Monte |

print.faMain | Print Method for an Object of Class faMain |

print.faMB | Print Method for an Object of Class faMB |

promaxQ | Conduct an Oblique Promax Rotation |

r2d | Convert Radians to Degrees |

rarc | Rotate Points on the Surface on an N-Dimensional Ellipsoid |

Ravgr | Generate a random R matrix with an average rij |

Rbounds | Generate random R matrices with user-defined bounds on the... |

rcone | Generate a Cone of Regression Coefficient Vectors |

rcor | Generate Random PSD Correlation Matrices |

rellipsoid | Generate Uniformly Spaced OLS Regression Coefficients that... |

restScore | Plot an ERF using rest scores |

RGen | Generate random R matrices with various user-defined... |

rGivens | Generate Correlation Matrices with Specified Eigenvalues |

rMAP | Generate Correlation Matrices with Specified Eigenvalues |

rmsd | Root Mean Squared Deviation of (A - B) |

rmsea | Calculate RMSEA between two correlation matrices |

RnpdMAP | Generate Random NPD R matrices from a user-supplied... |

rPCA | Generate a Correlation Matrix from a Truncated PCA Loadings... |

SchmidLeiman | Schmid-Leiman Orthogonalization to a (Rank-Deficient)... |

seBeta | Standard Errors and CIs for Standardized Regression... |

seBetaCor | Standard Errors and CIs for Standardized Regression... |

seBetaFixed | Covariance Matrix and Standard Errors for Standardized... |

semify | Generate an sem model from a simFA model object |

simFA | Generate Factor Analysis Models and Data Sets for Simulation... |

skew | Calculate Univariate Skewness for a Vector or Matrix |

SLi | Conduct a Schmid-Leiman Iterated (SLi) Target Rotation |

smoothAPA | Smooth a NPD R matrix to PD using the Alternating Projection... |

smoothBY | Smooth an NPD R matrix to PD using the Bentler Yuan 2011... |

smoothKB | Smooth a Non PD Correlation Matrix using the Knol-Berger... |

smoothLG | Smooth NPD to Nearest PSD or PD Matrix |

summary.faMain | Summary Method for an Object of Class faMain |

summary.faMB | Summary Method for an Object of Class faMB |

summary.monte | Summary Method for an Object of Class Monte |

summary.monte1 | Summary Method for an Object of Class Monte1 |

svdNorm | Compute theta surrogates via normalized SVD scores |

TaylorRussell | A generalized (multiple predictor) Taylor-Russell function. |

tetcor | Compute ML Tetrachoric Correlations |

tetcorQuasi | Correlation between a Naturally and an Artificially... |

Thurstone41 | Multi-Trait Multi-Method correlation matrix reported by... |

ThurstoneBox20 | Factor Pattern and Factor Correlations for Thurstone's 20... |

ThurstoneBox26 | Factor Pattern Matrix for Thurstone's 26 box attributes. |

tkl | Optimize TKL parameters to find a solution with target RMSEA... |

TR | Estimate the parameters of the Taylor-Russell function. |

vcos | Compute the Cosine Between Two Vectors |

vnorm | Norm a Vector to Unit Length |

VolElliptope | Compute the volume of the elliptope of possible correlation... |

wb | Wu & Browne model error method |

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