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Check for predictor linearity

Source: R/bru_is.R
bru_is_linear.Rd

Checks if a predictor expression is linear (or affine)

Usage

bru_is_linear(x, ...)

# S3 method for class 'bru'
bru_is_linear(x, ...)

# S3 method for class 'bru_info'
bru_is_linear(x, ...)

# S3 method for class 'bru_model'
bru_is_linear(x, ...)

# S3 method for class 'bru_obs'
bru_is_linear(x, ...)

# S3 method for class 'bru_obs_list'
bru_is_linear(x, ...)

# S3 method for class 'bru_pred_expr'
bru_is_linear(x, ...)

# S3 method for class 'bru_comp_list'
bru_is_linear(x, ...)

# S3 method for class 'bru_comp'
bru_is_linear(x, ...)

# S3 method for class 'bru_mapper'
bru_is_linear(x, ...)

Arguments

x

A object containing a predictor definition

...

Arguments passed on recursively.

Value

TRUE if the expression is detected to be linear, FALSE otherwise.

Examples

bru_is_linear(new_bru_pred_expr(~ x + y))
#> [1] TRUE
bru_is_linear(new_bru_pred_expr(~ x * y))
#> [1] FALSE
bru_is_linear(bm_scale())
#> [1] TRUE
bru_is_linear(bm_logsumexp())
#> [1] FALSE