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fscanf problem with reading data

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Ronald Aono
Ronald Aono on 25 Oct 2019
Commented: Walter Roberson on 29 Oct 2019
FileID =fopen('relp1.dat','r');
formatSpec = '%d %f'; sizeA=[2 Inf];
A = fscanf(FileID,formatSpec,sizeA)
fclose(FileID);
i am trying to scan the following data but it keeps returning an empty value of A

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Walter Roberson
Walter Roberson on 29 Oct 2019
Note that when you use multiple formats like you do, only one data type will be output if the reading works at all. The output is always a single numeric array, and any given numeric array is only a single data type. My tests suggest that everything will be converted to double when '%d %f' is used.

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Answers (1)

Vinai Datta Thatiparthi
Vinai Datta Thatiparthi on 29 Oct 2019
Hi Ronald!
Alternatively, consider using the commands ‘readtable’, ‘importdata’ or ‘textscan’ to get your file’s data into an array. These commands offer a lot of options to customize the way you want your data to be parsed.

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