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Hello list,<br><br>I am trying to create a series of ratio images using grass 6.4.1 and I can't get the syntax for the raster calculator figured out.<br>What I've got at the moment is:<br><br>'Bar45rastfl = 1.0 * BarB40@PERMANENT / BarB50@PERMANENT'<br><br>I've tried varying the equation above but to no avail. The resulting maps do not contain any values. <br><br>What am I doing wrong?<br><br>Thanks in advance,<br><br>Regards,<br><br>Michiel <br><br>                                            </div></body>
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