matlab.io.hdf4.sd.setAttr

Namespace: matlab.io.hdf4.sd

Write attribute value

Syntax

setAttr(objID,name,value)


Description

setAttr(objID,name,value) attaches an attribute to the object specified by objID. If objID is the SD interface identifier, then a global attribute is created. If a data identifier is specified, then the attribute is attached to the dataset. If a dimension identifier is specified, then the attribute is attached to the dimension.

This function corresponds to the SDsetattr function in the HDF library C API.

Examples

Attach attributes to a file, a dataset, and to a dimension.

import matlab.io.hdf4.*
sdID = sd.start('myfile.hdf','create');
sd.setAttr(sdID,'creation_date',datestr(now));
sdsID = sd.create(sdID,'temperature','double',[10 20]);
sd.setAttr(sdsID,'long_name','Temperature in sunlight.');
dimID0 = sd.getDimID(sdsID,0);
sd.setAttr(dimID0,'long_name','latitude');
sd.endAccess(sdsID);
sd.close(sdID);