ISPROP Tests if a property is present I=ISPROP(DATA,PROP) [I,TYPE]=ISPROP(DATA,PROP) INPUT DATA Data set PROP Property name OUTPUT I Logical value TYPE string property type ('sample','feat' or 'data') DESCRIPTION ISPROP returns 1 if the property PROP exists in DATA, and 0 otherwise. In the second output argument, ISPROP returns the property type.