I used the fmripower developed by Mumford et al to calculate power for future studies. Error pops up. Could anyone help me?
Error using fileparts (line 31)
Input must be a row vector of characters.
Error in fmripower_spm/roi_push_Callback (line 313)
[pth,name, ext]=fileparts(handles.roi_mask);
Error while evaluating uicontrol Callback
Undefined function 'tinv' for input arguments of type 'double'.
Error in calc_pow_lev2_individual (line 107)
power_results.power(k)=100*(1-nctcdf(-1*tinv(alpha, t_df), t_df, ncp));
Error in fmripower_spm/calculate_power_estimate (line 780)
power_estimate = calc_pow_lev2_individual(ctop,var_avg,handles.new_design_file,
...
Error in fmripower_spm/start_calc_push_Callback (line 431)
pow_est = calculate_power_estimate(handles,pth_save,range_start,range_end);
Error while evaluating uicontrol Callback