semptools (version 0.3.2)

lavaan_indicator_order: Determine the Order of Indicators Using a 'lavaan' Model Syntax

Description

Determine the order of indicators and match indicators and factors based on a 'lavaan' model syntax.

Usage

lavaan_indicator_order(model_syntax)

Value

A named character vector. The values are the indicators in the model syntax. The names are the latent factors the indicators loaded on.

Arguments

model_syntax

A string that should be a model specified in lavaan model syntax. Only the factor structure (operator =~) in the model will be used.

Details

It generates a named vector for the argument indicator_order of set_cfa_layout() and set_sem_layout() using a lavaan model syntax.

A variable is considered an indicator if it is on the right-hand side of the operator =~.

If an indicator loaded on more than one latent variable, it will only be matched to one of them, determined by the order of appearance in the internal storage.

See Also

set_sem_layout() and set_cfa_layout().

Examples

mod <-
  'f1 =~ x01 + x02 + x03 + x06
   f4 =~ x11 + x12 + x13 + x14
   f2 =~ x04 + x05 + x06 + x07
   f3 =~ x08 + x09 + x10 + x03
  '
lavaan_indicator_order(mod)

mod <-
  'f1 =~ x01 + x02 + x03 + x06
   f3 =~ x08 + x09 + x10 + x03
   f2 =~ x04 + x05 + x06 + x07
   f4 =~ x11 + x12 + x13 + x14
   f3 ~ f1 + f2
   f4 ~ f3
  '
lavaan_indicator_order(mod)