CalcDropTRs brick¶

Drop volumes of bold datasets, using AFNI 3dcalc¶

If “stop_idx” parameter is set to None or set to default (-1), “stop_idx” will be automatically set to the length of input file.

Mandatory inputs parameters:

in_file (a string representing an existing file)
Input 3D file (valid extensions: [.nii, .nii.gz]).
ex. '/home/username/data/raw_data/func.nii'

Optional inputs with default value parameters:

output_type (NIFTI or NIFTI_GZ, optional, , default value is NIFTI)
Format of the output image (one of NIFTI, NIFTI_GZ).

NIFTI: *.nii

NIFTI_GZ: *.nii.gz
ex. NIFTI
out_prefix (a string, optional, default value is ‘cropped’)
Prefix of the output image.
ex. 'cropped_'
start_idx (an integer, optional, default value is 0)
Start index for in_file_a.
ex. 0
stop_idx (an integer, optional, default value is -1)
Stop index for in_file_a. If “stop_idx” parameter is set to None or set to default (-1), “stop_idx” will be automatically set to the length of input file. Cannot be lower than or equal to “start_idx” parameters.
ex. 10

Outputs parameters:

out_file (a strings representing a file)
Out image (extensions: [.nii, .nii.gz]).
ex. '/home/username/data/derived_data/cropped_func.nii'

Useful links: