<div dir="ltr"><div class="gmail_default" style="font-size:small">Thomas,</div><div class="gmail_default" style="font-size:small"><br>I did discover that a change was made to an internal Fortran routine before V6.2.0 was release, but I can't verify if this is the source of the potential problem.<br><br></div><div class="gmail_default" style="font-size:small">It would be helpful if you could provide the data that you are passing to fourier_info, and the values of the other two parameters, so we can verify the bug here. The fourier_info tests I have are not showing any issues in V6.2.0. </div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Thanks,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">--Mary</div><div class="gmail_default" style="font-size:small"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Mar 2, 2015 at 11:19 PM, Thomas Tobian <span dir="ltr"><<a href="mailto:thomastobian@gmail.com" target="_blank">thomastobian@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">If you want to check this, just simply test it with any data you have. I tested also with NCL v.6.0.0 it works fine as in the v.6.1.2. This is only incorrect with 6.2.0.<div><br></div><div>No, there is no issue with scaling factor. Yes this is the absolute values, not responses or anomalies. </div><span class="HOEnZb"><font color="#888888"><div><br></div></font></span><div><span class="HOEnZb"><font color="#888888">Thomas</font></span><div><div class="h5"><br><br>On Tuesday, March 3, 2015, Maria Gehne - NOAA Affiliate <<a href="mailto:maria.gehne@noaa.gov" target="_blank">maria.gehne@noaa.gov</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">From your figures it also looks like the patterns could be the same and that just the scaling is different. Did you look at the actual values?<div><br></div><div>Maria</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Mar 2, 2015 at 5:36 PM, Dennis Shea <span dir="ltr"><<a>shea@ucar.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div>Just sending these figures would indicate an issue. However, it does not help in finding the source.<br></div>Checking the history of functions ...<br> <a href="http://www.ncl.ucar.edu/prev_releases.shtml" target="_blank">http://www.ncl.ucar.edu/prev_releases.shtml</a><br><br></div>This does not indicate that any explicit change has occurred in 'fourier_info' since its introduction.<br><br></div>Are the number of values odd or even ...<br></div>Really, nothing can be done without more information.<br></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div>On Mon, Mar 2, 2015 at 3:27 PM, Thomas Tobian <span dir="ltr"><<a>thomastobian@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr"><div>Dear NCL developer,</div><div><br></div><div>I found serious bugs for the fourier_info function in NCL v.6.2.0,</div><div>Attached, please find an example to illustrate it:</div><div>The first two rows are the amplitude of ozone wave1 based on NCL. v. 6.1.2</div><div>and the 3rd-4th rows are computed based on NCL v.6.2.0? The results from v.6.2 seems to be not realistic and incorrect.. Could you please find the source of the errors? This case also applies for the phase and explained variance results.</div><div><br></div><div>Thanks</div><span><font color="#888888"><div>Thomas Tobian</div></font></span></div>
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