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jmv

efa

Exploratory Factor Analysis

Description

Exploratory Factor Analysis

Usage

efa(
  data,
  vars,
  nFactorMethod = "parallel",
  nFactors = 1,
  minEigen = 0,
  extraction = "minres",
  rotation = "oblimin",
  hideLoadings = 0.3,
  sortLoadings = FALSE,
  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: 0), the minimal eigenvalue for a factor to be included in the model
`extraction`	`'minres'` (default), `'ml'`, or `'pa'` use respectively 'minimum residual', 'maximum likelihood', or 'prinicipal axis' as the factor extraction method
`rotation`	`'none'`, `'varimax'`, `'quartimax'`, `'promax'`, `'oblimin'` (default), or `'simplimax'`, the rotation to use in estimation
`hideLoadings`	a number (default: 0.3), hide factor loadings below this value
`sortLoadings`	`TRUE` or `FALSE` (default), sort the factor loadings by size
`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 = vars(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
#

jmv

The 'jamovi' Analyses

v1.2.23

GPL (>= 2)

Authors

Ravi Selker, Jonathon Love, Damian Dropmann

Initial release

2020-06-26

efa

Description

Usage

Arguments

Value

Examples

jmv

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