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Does MATLAB add extra data to text files?
I'd check the new line characters "\r" isn't typically used for a new line in most modern environments. It may be that the tex...

6年以上前 | 1

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textscan does not read all rows
If you pass in 'ReturnOnError',false with the textscan call, there will be an error message where the format cannot read your fi...

6年以上前 | 0

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readtable skipping some rows
detectImportOptions detecting Space as the delimiter, (correctly I think) and is looking at the "N/A" and "NE 45" and treating t...

6年以上前 | 0

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Read text file with multiple rows of fields
The current best way I know how to do this is with TEXTSCAN. fmt = "%s%s%s%s%*[^\r\n]%*[\r\n]%s%s%s%s" fid = fopen('sampleFile...

6年以上前 | 1

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Problems with readtable within parfor on R2018b for Win 64
Try using READTABLE with the 'UseExcel',false parameter. (This might also be 'Basic',true in older releases.)

6年以上前 | 0

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First colum of CSV-imported table has "x___" added to its name
The file probably has a Byte Order Mark in the beginning. If you read the raw bytes using fopen/fread you can see the mark at ...

6年以上前 | 2

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How can I increase the speed of this loop?
It's hard to say without looking at the contents of the file's you're reading. You're overriding n in the for loop with n as th...

6年以上前 | 0

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textscan with formatted input data
This should be able to read this without much issue. opts = detectImportOptions(filename) T = readtable(filename,opts)

6年以上前 | 0

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How to read specific numbers (colums) of a csv file
I'd do this: opts = detectImportOptions(filename); opts.SelectedVariableNames = opts.VariableNames([3 4]); T = readtable(file...

6年以上前 | 0

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Read a very large .csv file, split into parts and save each part into a smaller .csv file
If your plan is to write all the small CSV files out, and do nothing with them in MATLAB, I'd say just use tabularTextDatastore,...

6年以上前 | 1

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Read a specified list of images given the filename and the directory the files are in
Datastores are convenient for reading collections of files. imds = imageDatastore(directory) imshow(read(imds)) Each time you...

6年以上前 | 0

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Readtable for a huge (no good schema) CSV file!
opts = detectImportOptions(FileName,'Delimiter',';','NumHeaderLines',18) T = readtable(FileName,opts)

6年以上前 | 0

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readtable not understood behaviour
A simpler way to do this would be: lines = splitlines(fileread(filename))

6年以上前 | 0

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Readtable from i-th row to last row
Try this opts = detectImportOptions(filename,'NumHeaderLines',6) T = readtable(filename,opts)

6年以上前 | 3

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Readtable() confused by quotation marks? Matlab 2019a
opts = detectImportOptions('myfile.txt','FileType','text','Delimiter','|') T = readtable('myfile.txt',opts)

6年以上前 | 0

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How to read in a non-standard formated CSV file containing times and measurments and change the output format?
You could do this with textscan fid = fopen(file); vars = textscan(fid,'TIM%f%fABC%fDEF%fGHI%f','Delimiter',{','},'Whitespace'...

7年弱前 | 0

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readData() function error message when using mapreduce
ds.TextscanFormats{15} = '%q' That will at least get you past the one line that's causing the problem here. For a more robust a...

7年弱前 | 0

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Why writetable() adds ' 'true ' table element as ''table?
I think this is a case where using strings would make things more clear. In MATLAB, if I create a char vector and put a single-...

7年弱前 | 0

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Set union of Datastores with TransformedDatastores
Horizontal (i.e. associated reads) ----------- cds = combine(imds,otherds); Vertical (i.e. joining two sets of files into o...

7年弱前 | 1

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MATLAB 2018a readtable VariableNamesLine bug
What is the result if you pass ReadVariableNames into the function? T = readtable(fullFileName, opts, 'ReadVariableNames', true...

7年弱前 | 1

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Matlab Compiler not updating text file
There may be another text file with the same name on your path. Try, which -all <filename>.

7年弱前 | 0

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problem reading with format
The leading spaces are not being counted toward the width of the fields as you're expecting. %n.pf - will read at most n charac...

7年弱前 | 0

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Loading/Reading .log File
Try this: data = readtable('omar_timing_test_MG125_Block_1.log','FileType','text') Jeremy

7年弱前 | 2

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Windows .NET Framework Update Breaks READTABLE()
Try, readtable(filename,'Basic',true) % or UseExcel false in a more recent release.

約7年前 | 0

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WRITETABLE to spreadhseet mysterious failure
"=$0.00" This is probably the culprit. The writetable function has two modes: 'UseExcel' = true/false. If you're using Excel®,...

約7年前 | 1

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Transpose/combine several variables using csvwrite or writematrix
The function writematrix is available in R2019a.

約7年前 | 0

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import large csv file
The issue with 22 digits of precision in DECIMAL is that MATLAB's default number type is DOUBLE which really can only handle aro...

約7年前 | 0

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Effective way to extract rows (range) from a text file
Readling line by line is quite ineffecient. Try this: C = textscan(fid,'%f','delimiter','\n', 'headerlines',182);

約7年前 | 0

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How to convert xlswrite to writematrix?
XLSWRITE can write either a matrix (e.g. [ 1 2 4;5 7 8] or a cell {'a' 'b';'c' 'd'}) If your input is a cell, use WRITECELL. ...

約7年前 | 0

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Importing a Large CSV in chunks and getting Data Range Invalid
I'd reccomend using tabularTextDatastore for this case. It will try to automatically detect formats and handle the reading of se...

約7年前 | 0