portant for multivariate fitting, where variables may be</span>
0047 <span class="comment">%           measured in non-comparable units. It is also used to specify</span>
0048 <span class="comment">%           the frequency for variables with the 'a' (angular) style.</span>
0049 <span class="comment">%     'sty' Character string (length d) of styles for each predictor variable.</span>
0050 <span class="comment">%           n denotes `normal'; a denotes angular (or periodic); l and r</span>
0051 <span c