Mathscript: read big-endian & case lists

[dan_u]

Hi all,

I'm using a MathScript node to read contents from a file. The binary data is stored as big-endian floats, but I only figured out how to read little-endian data.

In Matlab you can specifiy the number formatting when opening a file using fopen. In MathScript I didn't see any option for that, neither in fopen nor in fread. Is there a way to read big-endian floating point data?

Second question, I use a switch/case statement. In Matlab I can specify lists of items to match in a case, is there a way to do this in MathScript?

Something like this (a is a string):

switch a

case {'a', 'b'}

...

Thanks,

Daniel

[GrantM]

Hello Daniel,

Currently the MathScript fopen function does not support the different options to specify reading data in big- or little-endian format.  I will file a bug report to add those options.

When specifying multiple options for a case, the cell array syntax is used.  Currently, MathScript does not support cell arrays.  As a workaround, you can duplicate your cases for each option.

Grant M.
Staff Software Engineer | LabVIEW Math & Signal Processing | National Instruments

[dan_u]

Hi Grant,

Thanks for the information.

That's what I did with the cases, duplicating the options.

Unfortunately I didn't find a suitable workaround for reading big-endian data yet. Probably read as string, shuffle the bytes accordingly and transform into float... I'll have to try.

Thanks,

Daniel