null,
    public JStatement makeFrequencyScale(JVariableDefinition fieldToScale,					 int filterSize) {	JExpression[] externalArgs = new JExpression[2];	externalArgs[0] = new JFieldAccessExpression(null, new JThisExpression(null),						     fieldToScale.getIdent());	externalArgs[1] = new JIntLiteral(filterSize);	JExpression externalCall = new JMethodCallExpression(null,           /* token reference*/							     null,           /* prefix */							     SCALE_EXTERNAL, /* ident */							     externalArgs);  /* args */	JavaStyleComment[] comment = makeComment("callout to " + SCALE_EXTERNAL +						 " (scales buffer by 1/" + filterSize + ")."); 	return new JExpressionStatement(null,externalCall,comment);               }