what does this error mean?

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Enez Furkan Cihan
Enez Furkan Cihan 2017-7-31
评论： Walter Roberson 2017-7-31
"Array formation and parentheses-style indexing with objects of class 'phased.RootMUSICEstimator' is not allowed. Use objects of class 'phased.RootMUSICEstimator' only as scalars or use a cell array." I get this error when try to estimate DOA with MUSIC algorithm.
rootmusicangle = phased.RootMUSICEstimator('SensorArray',ula,...
'OperatingFrequency',fc,...
'NumSignalsSource','Property','NumSignals',2);
Thanks in advance

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Walter Roberson
Walter Roberson 2017-7-31
Somehow, phased.RootMUSICEstimator has stopped being a constructor that takes options, and has become a particular phased.RootMUSICEstimator object, and it thinks the 'SensorArray',ula and so on are indices into an array of such objects.
Perhaps at some point there has been a
phased.RootMUSICEstimator = .... something
call ?
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Walter Roberson
Walter Roberson 2017-7-31
Sorry, my system is occupied with a long-running task; I cannot test at the moment.

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