The expression to the left of the equals sign is not a valid target for an assignment.-matlab error

Error in correcstacklwberg (line 99)

[final_tx_data_out, channel_gainbspu,

channel_gainpusu]=tx_process(original_data,mess_len,no_pu,no_bs,no_su,int_power,channel_gainbspu_im,channel_gainpusu_im);

sir /Mam having error comes like this ,kindly help

[Walter Roberson]

That usually means that the line is inside an unclosed [] or {} . For example

A = [1 2 3
     4 5 6
B = max(A)

[SUMITHRA SOFIA]

Sir thank u so much for ur reply, sir I have a doubt in the equation given above the right side refers to input variables needed to get the left part as output.

[Walter Roberson]

Yes, on MATLAB, the left side of an = lists the destinations to be written to, and the right side of an = is the expression that shows how to compute the results.