Cartesian

[INRING]

Where can I obtain the Cartesian coordinates of the electrode point? Thank you

[craddm]

The channels() function will give you those.

library(eegUtils); channels(demo_epochs)
#> 
#> Attaching package: 'eegUtils'
#> The following object is masked from 'package:stats':
#> 
#>     filter
#> # A tibble: 11 × 9
#>    electrode radius theta   phi cart_x cart_y cart_z     x     y
#>    <chr>      <dbl> <dbl> <dbl>  <dbl>  <dbl>  <dbl> <dbl> <dbl>
#>  1 A5             1   -60   -51  -46.3   57.2  42.5  -37.8  46.6
#>  2 A13            1   -46     0  -61.1    0    59.0  -46     0  
#>  3 A21            1   -60    51  -46.3  -57.2  42.5  -37.8 -46.6
#>  4 A29            1    92   -90    0    -85.0  -2.97   0   -92  
#>  5 A31            1    46   -90    0    -61.1  59.0    0   -46  
#>  6 B5             1    69    90    0     79.4  30.5    0    69  
#>  7 B6             1    46    90    0     61.1  59.0    0    46  
#>  8 B8             1    60    51   46.3   57.2  42.5   37.8  46.6
#>  9 B16            1     0     0    0      0    85      0     0  
#> 10 B18            1    46     0   61.1    0    59.0   46     0  
#> 11 B26            1    60   -51   46.3  -57.2  42.5   37.8 -46.6

^{Created on 2023-03-30 with reprex v2.0.2}