| checkimg,afni-method | R Documentation | 
Ensures the output to be a character filename (or vector) from an input
image or nifti/afni.
## S4 method for signature 'afni'
checkimg(file, allow_array = FALSE, ...)
| file | character or  | 
| allow_array | allow arrays to be passed in | 
| ... | options passed to  | 
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