afni.nimh.nih.gov

Hi Gang,

Thank you so much!

I tried both r and z :
3dTcorrMap -input input_data -mask mask_data -Cexpr 'step(r)*r' r_output_data
3dTcorrMap -input input_data -mask mask_data -Cexpr 'step(z)*z' z_output_data

But, the values in the z_output_data seems a slightly higher than that in the r_output_data. So, what is the difference between these two?

Thanks,

Jinsong