

  LDWORK  INTEGER
          The length of the array DWORK.
          LDWORK &gt;= N*MAX(4,N).

</PRE>
<B>Error Indicator</B>
<PRE>
  INFO    INTEGER
          = 0 : successful exit;
          &lt; 0 : if INFO = -i, the i-th argument had an illegal
                value;
          = 1 : data file could not be opened or had wrong format;
          = 2 : division by zero;
          = 3 : G can not be computed as in (I) due to a singular R
                matrix.

</PRE>
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