Function syntax / execution

I am attempting to write this function and if I just run it the output is correct, however if i set the inputs in the command line to something else and then run it the same answer is provdied (pretty much ignored the input values in the command line and took the input from the input files). I am not very experienced with function wiriting so this will probably a rather trivial mistake.

Thank you

[Stephen23]

"pretty much ignored the input values in the command line and took the input from the input files"

Note that the MATLAB Editor highlighted and underlined the two input arguments, telling you that they are unused:

When the Editor underlines something, you should pay attention to that message.

[nathan stallworth]

Understood, since they were used later on in the code I didn't understand why it said "unsued".

Thank you

Answer 1

[dpb]

" (pretty much ignored the input values in the command line and took the input from the input files)"

No "pretty much" about it -- there's no point in having the input arguments as you wrote the function; you hardcoded the file names into the function and read them into the two variables in the argument list, thereby overwriting them.

If the point is to read different sets of files and so the same thing on them, then pass the two file names to the function instead.

[dpb]

BTW, I would have edited your function if you had pasted it as code instead of as an image -- but it's too much work to have to type it all in again...

[nathan stallworth]

Hey there, I get what you're saying however I am still confused how to exactly use the inputs then. I do apolgize about not posting the actualy code, i will post it here if you still willing to assist. Thank you

function [output] = binning_Func(in1,in2)

file1 = 'C:\Users\NSTALLWORTH\Documents\Aegis\21 - end of FY Wrap\Output Data_og.xlsx';

file2 = 'C:\Users\NSTALLWORTH\Documents\Aegis\21 - end of FY Wrap\phandoff_altitude_bins.xlsx';

data_input = importdata(file1, ' ',1);

data = data_input.data(:,:);

alt_input = importdata(file2, ' ',1);

binning = alt_input.data(:,:);

altitude = data(:,9);

eci = data(:,3:8);

sat_ID = data(:,1);

info = cell(length(altitude),10);

for i = 1:length(binning)

ind = find((altitude >= binning(i,2)) & (altitude < binning(i,3)));

binVal = i-1;

binMat = zeros(length(ind),1);

binMat(:,:) = binVal;

output = [sat_ID(ind,1) eci(ind,1) eci(ind,2) eci(ind,3) eci(ind,4) eci(ind,5) eci(ind,6) altitude(ind,1) binMat];

info{i} = (output);

t = vertcat(info{:});

table = array2table(t,'VariableNames',{'satID','X (km)', 'Y (km)', 'Z (km)', 'XDot (km/s)', 'YDot (km/s)', 'ZDot (km/s)', 'Altitude (km)', 'Bin Ind'});

end

output = table;

writetable(table,'Output Data Full.txt','Delimiter','\t');

type 'Output Data Full.txt';

filename = 'Output Data Full.xlsx';

sheets = 1;

writetable(table, filename, 'Sheet',sheets, 'Range', 'A1');

end

[Walter Roberson]

Do you want the user to pass in file names or pass in the actual data?

[nathan stallworth]

File name, but i wanted to test it using actual data.

[Steven Lord]

In that case your function should start with:

function [output] = binning_Func(file1, file2)
data_input = importdata(file1, ' ',1);
% Snip the rest of the function

When you call your function to test it define your actual data file names and pass them into your function.

file1 = 'C:\Users\NSTALLWORTH\Documents\Aegis\21 - end of FY Wrap\Output Data_og.xlsx';
file2 = 'C:\Users\NSTALLWORTH\Documents\Aegis\21 - end of FY Wrap\phandoff_altitude_bins.xlsx';
output = binning_Func(file1, file2);

When you call your function "for real" define file1 and file2 to contain the names of your real data files and then call binning_Func as before.

[nathan stallworth]

Okay this has been a great learning experience, I appreciate it!