For most values of source , if fread reaches the end of the file before reading a complete value, it does not return a result for the final value. However, if source is bit n or ubit n , then fread returns a partial result for the final value.
Data Types: char string. Number of bytes to skip after reading each value, specified as a scalar. If you specify a precision of bit n or ubit n , specify skip in bits. Use the skip argument to read data from noncontiguous fields in fixed-length records. Order for reading bytes in the file, specified as a character vector or a string scalar.
Specify machinefmt as one of the values in the table that follows. For bit n and ubit n precisions, machinefmt specifies the order for reading bits within a byte, but the order for reading bytes remains your system byte ordering. By default, all currently supported platforms use little-endian ordering for new files. Existing binary files can use either big-endian or little-endian ordering.
File data, returned as a column vector. If you specified the sizeA argument, then A is a matrix of the specified size.
Data in A is class double unless you specify a different class in the precision argument. The input argument precision must be a constant. The source and output classes that precision specifies cannot have these values: 'long' , 'ulong' , 'unsigned long' , 'bit n ' , or 'ubit n '.
If the source or output that precision specifies is a C type, for example, int , then the target and production sizes for that type must:. The source type that precision specifies must map directly to a C type on the target hardware. If the fread call reads the entire file, then all of the data must fit in the largest array available for code generation.
If sizeA is not constant or contains a nonfinite element, then dynamic memory allocation is required. The code generator for the fread function treats the char value for source or output as a signed 8 -bit integer. Use values between 0 and only. The generated code does not report file read errors.
In your error handling code, consider checking that the number of bytes read matches the number of bytes that you requested.
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Other MathWorks country sites are not optimized for visits from your location. Viewed 2k times. Thank you,. Add a comment. Active Oldest Votes. Acorbe Acorbe 8, 3 3 gold badges 35 35 silver badges 63 63 bronze badges. Thanks Acorbe, the thing is this information I don't have so I have to guess, by evaluating the results.
I'll give your suggestion a try. My suggestion: try to read the first variable first. The types of variables featuring 2 bytes are not a lot. Or simply call fread once, and then swap the byte values of the first variable. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location.
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You may receive emails, depending on your communication preferences. How to import and read a binary file in Matlab. Show older comments. Butterflyfish on 20 Jul Vote 0. Commented: Guillaume on 11 Mar Accepted Answer: Jan.
I have a. Is it possible to import and read and if so how?
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