![]() ![]() For example, the integer NaNis represented as zero in MATLAB. I would expect fread to be a lot faster in that case. Your file probably contains 49 lines or less, so everything ends up being discarded. The character '1' is interpreted as its ASCII value, 0x31 (49 decimal), so the first 49 lines are skipped. Which command should I use if I'm importing data. The command seems to work fine if I only have a vector in the text file, but if I have a matrix, matlab will change the structure of the data and store the matrix as a vector. If you want to manage the data as time data you can use the function datetime. textscan converts numeric fields to the specified output type according to MATLAB rules regarding overflow, truncation, and the use of NaN, Inf, and -Inf. When textscan reads the input, it attempts to match the data to the format specified in the format specification, formatSpec, as detailed in the documentation. 304 4 15 Do you have the ability to change the process that writes the text file and change it to output a binary instead I know this is not an answer to your problem but it provides an alternate path to get at the information you need. Textscan ()is designed to convert numeric fields to a specific output type, following MATLAB rules with respect to the process of overflow, truncation, and the application of NaN, Inf, and -Inf. Andrey Rubshtein 20.8k 11 67 104 asked at 3:53 Maddy 2,520 14 44 64 Add a comment 2 Answers Sorted by: 0 Ideally you would be able to get your data into a binary format and then use fread to directly read double precision number in. 1 Answer Sorted by: 3 I think your problem is that you have specified a string instead of an integer value for HeaderLines. Is textscan the correct command to use when importing data from text files into matlab. Finally, 'Delimiter',',' states that all commas should be interpreted as the delimiter between each column. Then you can concatenate them in order have a (nx2) matrix fileID = fopen('Uz10.txt') To do this, call: data textscan (fid,'s s s f f f','Delimiter',',') The asterisk in s means 'ignore this column'. Inbuilt function from MATLAB, textscan() perform the operation of reading formatted data from text file or string, converting and writing data to cell array. 1) by specifying %s as the format: in this case, textscan returns a cellarray of string fileID = fopen('Uz10.txt') ΔΆ) by specifying %d:%d as the format: in this case, textscan returns a (1x2) cellarray of int32 type containing the two digit of each row.
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