Design Matrix for fMRI Models

Extract the combined design matrix from an fMRI model containing both event and baseline terms.

Usage

# S3 method for class 'fmri_model'
design_matrix(x, blockid = NULL, ...)

Arguments

x

An fmri_model object

blockid

Optional numeric vector specifying which blocks/runs to include

...

Additional arguments (not used)

Value

A tibble containing the combined design matrix with event and baseline terms

Examples

fm <- fmrireg:::.demo_fmri_model()
head(design_matrix(fm))
#> # A tibble: 6 × 10
#>   condition_condition.A condition_condition.B base_bs1_block_1 base_bs2_block_1
#>                   <dbl>                 <dbl>            <dbl>            <dbl>
#> 1                0.0624                0                 0                0    
#> 2                1.14                  0                 0.444            0.222
#> 3                1.78                  0                 0.222            0.444
#> 4                2.21                  0                 0                0    
#> 5                0                     0.0483            0                0    
#> 6                0                     1.07              0                0    
#> # ℹ 6 more variables: base_bs3_block_1 <dbl>, base_bs1_block_2 <dbl>,
#> #   base_bs2_block_2 <dbl>, base_bs3_block_2 <dbl>, constant_1 <dbl>,
#> #   constant_2 <dbl>