Simple question regarding data files

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Minh Nguyen
Minh Nguyen 2014-3-4
编辑： Minh Nguyen 2014-3-4
3)For a biomedical experiment, the names and weights of some patients have been stored in a file patwts.dat. For example, the file might look like this: Joe Schmo 110.5 Jane Lang 235.4 Mickey Mouse 150.3 Justin Alabama 650.2 Create this data file first.
Am I suppose make a matrix and save it to a data file? If so, I'm not sure what type of matrix to make it.
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per isakson
per isakson 2014-3-4
编辑：per isakson 2014-3-4
You need a cell array to store both numerical and text.
There is also a data type table, but I doubt you need that.

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Image Analyst
Image Analyst 2014-3-4
编辑：Image Analyst 2014-3-4
You could use a cell array, but I find an array of structures easier - you never have to figure out if you need parentheses of braces. You can create your text file and then read it in with fgetl() and create your structure
fid = fopen('fgetl.m');
tline = fgetl(fid);
counter = 1;
while ischar(tline)
%disp(tline)
% First line is name.
tline = fgetl(fid);
patientData(counter).name = tline; % Assign field of the structure
% Next line is weight
tline = fgetl(fid);
% Next line is the weight.
patientData(counter).weight= str2double(tline);
% Move on to the next structure.
counter = counter + 1;
end
fclose(fid);
  2 个评论
Minh Nguyen
Minh Nguyen 2014-3-4
My question is actually even simpler. How do I make the text file to begin with? I'm stuck on the "Create this data file first"
Minh Nguyen
Minh Nguyen 2014-3-4
编辑：Minh Nguyen 2014-3-4
I figured it out, thank you, just as simple as making a text file and saving it as .dat

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