MATLAB: Invalid expression in reading the file

calling erro

function [rR,CL,effi1] = import_cl_effi(general_data,16, 45);
%IMPORTFILE1 Import numeric data from a text file as column vectors.
%   [RR,CL,EFFI1] = IMPORTFILE1(FILENAME) Reads data from text file
%   FILENAME for the default selection.
%
%   [RR,CL,EFFI1] = IMPORTFILE1(FILENAME, STARTROW, ENDROW) Reads data from
%   rows STARTROW through ENDROW of text file FILENAME
%% Initialize variables.
delimiter = ' ';
if nargin<=2
    startRow = 16;
    endRow = 45;
end
%% Format string for each line of text:
%   column2: double (%f)
%	column5: double (%f)
%   column9: double (%f)
% For more information, see the TEXTSCAN documentation.
formatSpec = '%*s%f%*s%*s%f%*s%*s%*s%f%*s%*s%[^\n\r]';
%% Open the text file.
fileID = fopen('general_data.txt','r');
%% Read columns of data according to format string.
% This call is based on the structure of the file used to generate this
% code. If an error occurs for a different file, try regenerating the code
% from the Import Tool.
textscan(fileID, '%[^\n\r]', startRow(1)-1, 'ReturnOnError', false);
dataArray = textscan(fileID, formatSpec, endRow(1)-startRow(1)+1, 'Delimiter', delimiter, 'MultipleDelimsAsOne', true, 'EmptyValue' ,0.0,'ReturnOnError', false);
for block=2:length(startRow)
    frewind(fileID);
    textscan(fileID, '%[^\n\r]', startRow(block)-1, 'ReturnOnError', false);
    dataArrayBlock = textscan(fileID, formatSpec, endRow(block)-startRow(block)+1, 'Delimiter', delimiter, 'MultipleDelimsAsOne', true, 'EmptyValue' ,0.0,'ReturnOnError', false);
    for col=1:length(dataArray)
        dataArray{col} = [dataArray{col};dataArrayBlock{col}];
    end
end
%% Close the text file.
fclose(fileID);
%% Allocate imported array to column variable names
rR = dataArray{:, 1};
CL = dataArray{:, 2};
effi1 = dataArray{:, 3};
I am getting following error
Error: File: import_cl_effi.m Line: 1 Column: 54
Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax
error. To construct matrices, use brackets instead of parentheses.

Best Answer

function [rR,CL,effi1] = import_cl_effi(general_data,16, 45);
%                                                    ^^  ^^ Not valid in a function definition.
You will need something like this:
function [rR,CL,effi1] = import_cl_effi(general_data, startRow, endRow);
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