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Using convpres in MATLAB (single to float conversion)

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X is a 450x1 single type data.
>> temp1 = typecast(X,'float');
Error using typecast
Unsupported data type for conversion.
>> temp1 = double(X);
>> temp1 = convpres(temp1,'Pa','psi');
Undefined function 'convpres' for input arguments of type 'double'.
I looked up all the usual MATLAB casting technique but to no luck. Can someone comment? Thank you.

Answers (1)

Sahithi Kanumarlapudi
Sahithi Kanumarlapudi on 14 Dec 2020
Your question has two parts
1.) Regarding the use of typecast : You can convert 'single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64' to 'single', 'double', 'int8', 'int16', 'int32', 'int64', 'uint8', 'uint16', 'uint32', or 'uint64' (As you can see there is no float in this list). For more info refer to the documentation of typecast here.
2.) Regarding the use of convpres function: In the code snippet that you have provided, temp1 is of type double. But as per the documentation of convpres, the type of first argument 'valuesToConvert' is expected to be float (Floating-point array of size m-by-n values).
Referring to the documentation of convpres might give you more info:
Hope this helps!




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