R: Exploratory Factor Analysis

efa {jmv}

R Documentation

Exploratory Factor Analysis

Description

Exploratory Factor Analysis

Usage

efa(data, vars, nFactorMethod = "parallel", nFactors = 1, minEigen = 1,
  rotation = "oblimin", hideLoadings = 0.3, screePlot = FALSE,
  eigen = FALSE, factorCor = FALSE, factorSummary = FALSE,
  modelFit = FALSE, kmo = FALSE, bartlett = FALSE)

Arguments

`data`	the data as a data frame
`vars`	a vector of strings naming the variables of interest in `data`
`nFactorMethod`	`'parallel'` (default), `'eigen'` or `'fixed'`, the way to determine the number of factors
`nFactors`	an integer (default: 1), the number of factors in the model
`minEigen`	a number (default: 1), the minimal eigenvalue for a factor to be included in the model
`rotation`	`'none'`, `'varimax'` (default), `'quartimax'`, `'promax'`, `'oblimin'`, or `'simplimax'`, the rotation to use in estimation
`hideLoadings`	a number (default: 0.3), hide loadings below this value
`screePlot`	`TRUE` or `FALSE` (default), show scree plot
`eigen`	`TRUE` or `FALSE` (default), show eigenvalue table
`factorCor`	`TRUE` or `FALSE` (default), show factor correlations
`factorSummary`	`TRUE` or `FALSE` (default), show factor summary
`modelFit`	`TRUE` or `FALSE` (default), show model fit measures and test
`kmo`	`TRUE` or `FALSE` (default), show Kaiser-Meyer-Olkin (KMO) measure of sampling adequacy (MSA) results
`bartlett`	`TRUE` or `FALSE` (default), show Bartlett's test of sphericity results

Value

A results object containing:

`results$text`					a preformatted

Examples

data('iris')

efa(iris, vars = c('Sepal.Length', 'Sepal.Width', 'Petal.Length', 'Petal.Width'))

#
#  EXPLORATORY FACTOR ANALYSIS
#
#  Factor Loadings
#  ------------------------------------------------
#                    1        2        Uniqueness
#  ------------------------------------------------
#    Sepal.Length    0.993                0.10181
#    Sepal.Width              0.725       0.42199
#    Petal.Length    0.933                0.00483
#    Petal.Width     0.897                0.07088
#  ------------------------------------------------
#    Note. 'oblimin' rotation was used
#

[Package jmv version 0.9.2.0 Index]