<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hey Lin,<div class="">when dealing with non-monotonic arrays I usually employ the <font face="Menlo" class="">ind</font> function, so I don’t understand why is not working for you…</div><div class=""><br class=""></div><div class="">If you have, say, <font face="Menlo" class="">lon</font> and <font face="Menlo" class="">lat</font> arrays (<b class="">this assume to have them 1-Dimensio</b>nal, otherwise it gets fishy…).</div><div class=""><br class=""></div><div class=""><font face="Menlo" class="">min_lon= -50.</font></div><div class=""><font face="Menlo" class="">max_lon= -70.</font></div><div class=""><font face="Menlo" class="">min_lat= -180.</font></div><div class=""><font face="Menlo" class="">max_lat= -180.</font></div><div class=""><font face="Menlo" class="">box_lon= ind(lon.ge.min_lon .AND. lon.le.max_lon)</font></div><div class=""><div class=""><font face="Menlo" class="">box_lat= ind(lat.ge.min_lat .AND. lat.le.max_lat)</font></div></div><div class=""><br class=""></div><div class="">should give you exactly all the indices inside the user-prescribed area. Then you can subset using</div><div class=""><br class=""></div><div class=""><font face="Menlo" class="">var_box=var(:,box_lat,box_lon)</font></div><div class=""><br class=""></div><div class="">Please be reminded that box_values will have different dimensions, since it is a subset of the original variable.</div><div class="">Cheers,<br class=""><div class="">
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<br class=""><div><blockquote type="cite" class=""><div class="">On 22 Aug 2016, at 01:13, 林祥 <<a href="mailto:xianglin72@icloud.com" class="">xianglin72@icloud.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span id="cid:E18B13C8-D8C7-4DA5-B89B-AE8032041F39@mpi.zmaw.de"><latitude.csv></span></div></blockquote></div><br class=""></div></body></html>