Read text file with string
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Hi all,
I have to read the file (inserted in attachment) and only need the numeric portion as a matrix(array). The extension of file is .TXK .
Thanks in advance
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Turlough Hughes
2020-3-4
编辑：Turlough Hughes
2020-3-4
You could use the readmatrix function as follows:
filename = 'My2.TXK'
opts = detectImportOptions(filename,'FileType','text')
data = readmatrix(filename,opts)
the .TXK extension is not recognised by readmatrix which is why I specified the FileType as text in the import options.
You could optionally read in as a table:
T = readtable(filename,opts)
If you want to get the variable names automatically, for example if you have a number of similar data files, I would need to see what the first line of text looks like generally across the files.
4 个评论
Ahmed Anas' comment moved here:
i could not understand the 'detectImportOptions' command.
and getting an error about it
Guillaume
2020-3-4
You haven't indicated which version of matlab you are using. It must be fairly old (<2016b) if it doesn't support detectImportOptions.
Ahmed Anas
2020-3-4
Ahmed Anas
2020-3-4
更多回答（1 个）
Guillaume
2020-3-4
Should work in R2016a:
filename = 'My2.TXK'; %using full path would be better
[fid, errmsg] = fopen(filename, 'rt');
assert(fid > 0, 'Failed to open "%s" due to error: %s', filename, errmsg);
data = cell2mat(textscan(fid, '%f%f%f', 'Delimiter', {'\t', ' '}, 'MultipleDelimsAsOne', true, 'HeaderLines', 1));
fclose(fid);
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