Trouble with declaring function output

I created a function for importing data from text files, and then outputting an array of the averages of these data.

data = function importer

files = dir('*.txt');

for i = 1:length(files)
    temp = importdata(files(i).name);
    radData = temp.data(:,4);
    radAvg = mean(radData(~radData==0));
    data{i} = radAvg;
end
end

When I run the code however, I get the error

Error: File: importer.m Line: 1 Column: 8
Function definitions are not permitted in this context.

However, defining the function simply as

function importer

and then displaying the final array at the end of the code

...
end
data
end

shows that my code works otherwise. I am not sure what I did wrong but any help would be greatly appreciated.

Answer 1

[James Tursa]

function data = importer

[Chris Moon]

wow I'm dumb, can't believe I forgot the order. Thanks alot!