Generate syntax for correlations between variables.

## Arguments

- x
Object for which a method exists. If `x`

is an object of class
`tidy_sem`

, then correlations between all
observed and latent variables in the data dictionary of that object are
computed, by default. If
`x`

is a character vector, all elements of the vector are used.

- ...
Optional additional character vectors of variables to be
correlated. If `x`

is an object of class `tidy_sem`

, then up to two
vectors can be provided. If `x`

is a
vector, then one more optional vector can be provided.
When no additional vectors of variable names are provided, only the
correlations among the elements of `x`

are returned.

## Value

An object of class `tidy_sem`

.

## Examples

```
dict <- tidy_sem(c("bfi_1", "bfi_2", "bfi_3", "bfi_4", "bfi_5"))
cors(dict, c("bfi_1", "bfi_2"))
#> A tidy_sem object
#> v $dictionary
#> o $data
#> v $syntax
```