MATLAB: Reading certain rows from txt file.

matrix manipulationreadtext filetext;textscan

Im trying to read certain ranges from a txt file. I essentially need to show two plots but my data is broken up by some text in the middle. Is it possible to read the data and skip just the txt part.

Best Answer

The following code will read the data as you require:
% Setup the Import Options
opts = delimitedTextImportOptions("NumVariables", 2);
opts.DataLines = [2, Inf];
opts.Delimiter = ["\t", " "];
opts.VariableNames = ["title", "MachNumber"];
opts.VariableTypes = ["double", "double"];
opts.ExtraColumnsRule = "ignore";
opts.EmptyLineRule = "read";
opts.ConsecutiveDelimitersRule = "join";
 
% avoid rows with text settings
opts.ImportErrorRule = "omitrow";
opts.MissingRule = "omitrow";
 
% Import the data
requiredTable = readtable("CASE1_MACH.txt", opts);
Additionally, you can look into the Import Tool to easily load data from files into workspace.
Hope this helps!
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