Gets a parameter from an existing dataset.
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Syntax |
Description |
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?getparameter(R); |
Returns the names of all the parameters in the dataset R. |
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Parameter = R.getparameter("p"); |
Retrieves the parameter p from the existing dataset R. The result "Parameter" is a scalar matrix. See Dataset introduction for details about dimensions of attribute data. |
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Parameter = getparameter(R,"p"); |
Retrieves the parameter p from the existing dataset R. The result "Parameter" is a scalar matrix. See Dataset introduction for details about dimensions of attribute data. |
Examples
This example retrieves the dataset results "E" from a profile monitor, and then uses the getparameter command to get the "f" parameter, and the getattribute command to get the "Ex" and "E2" attributes from the dataset. Note that f, Ex and E2 are all scalar matrices, like the results one would get with the getdata command.
E = getresult("profile","E");
f = E.getparameter("f"); # the parameter f
Ex = E.getattribute("Ex"); # the x component of the electric field
E2 = E.getattribute("E2"); # the electric field intensity, note that this only works if E is a vector
Note that one can also use the "." operator to retrieve the parameters and attributes directly. For example:
E = getresult("profile","E");
f = E.f; # the parameter f
Ex = E.Ex; # the x component of the electric field
E2 = E.E2; # the electric field intensity, note that this only works if E is a vector
See Also
matrixdataset , rectilineardataset , "." operator , getresult , getattribute , visualize , datasets