MATLAB: Dot indexing not supprted for variables of this type.

dot indexing of variable

i am facing issue while i am running my code 
for l=1:1:param_num_paths
    gamma_x=1j*kd*sin(params.DoD_theta(l)*ang_conv)*cos(params.DoD_phi(l)*ang_conv); % showed error in this line 
    gamma_y=1j*kd*sin(params.DoD_theta(l)*ang_conv)*sin(params.DoD_phi(l)*ang_conv);
    gamma_z=1j*kd*cos(params.DoD_theta(l)*ang_conv);
    gamma_comb=Mxx_Ind*gamma_x+Myy_Ind*gamma_y + Mzz_Ind*gamma_z;
    array_response=exp(gamma_comb);
    delay_normalized=params.ToA(l)/Ts;
    channel=channel+array_response*sqrt(params.power(l)/ofdm_num_subcarriers)*exp(1j*params.phase(l)*ang_conv)*exp(-1j*2*pi*(k/ofdm_num_subcarriers)*delay_normalized);     
end
i already defined the respective values which is used in this code , but when i am running it gives an error " Dot indexing is not supported for variables of this type".

Best Answer

You're getting the error because you're calling params like a structure, 'params.DoD_phi(1),' but you previously defined params as a simple double matrix.
Related Question