<div dir="ltr"><div>This question is for the developers of or a user familiar with both the Windows and Linux versions of opengrads. This question is specifically about version 2.2.1.oga.1. Another user could not use it on the ubuntu version as well.</div><div><br></div>I have a script that does temporal regressions of the variable "air" on various climate indices, using opengrads functions (B Tsuang extensions) tcorr2 and tregr2. I have no problems using the Windows version on my laptop, but when I use it on my Cloud linux version, I get the following error when using tcorr2 (the tregr2 error is similar):<div><br></div><div>--------------------------</div><div>Opened ../stevem/data/cdf/monthlyanoms/<a href="http://air.sig995.mon.anom.nc">air.sig995.mon.anom.nc</a><br>Opened data/index/pna.mon.1948-2020.ctl<br>i=1 j=1<br>Error from TCORR: Too many or too few args<br> 4 arguments expected<br>Operation Error: Error from tcorr2 function<br> Error ocurred at column 1<br>DISPLAY error: Invalid expression<br> Expression = tcorr2(ndexnew(t-2),air,time=oct1950,time=oct2019,12mo)<br>Cannot plot color bar: No shading information<br>Error from TCORR: Too many or too few args<br> 4 arguments expected<br>Operation Error: Error from tcorr2 function<br> Error ocurred at column 1<br>DISPLAY error: Invalid expression<br> Expression = tcorr2(ndexnew(t-2),air,time=oct1950,time=oct2019,12mo)<br></div><div><div>--------------------------</div><div><br></div><div>All of the variables are valid and available to the function, so the issue appears to be related to the fifth argument provided, which tcorr does not accept.</div><div><br></div><div>Here's the applicable command in my script:</div><div><br></div><div>'d tcorr2(ndexnew(t-'lt'),'dvar',time='date1',time='date2',12mo)'<br></div><div><br></div><div>where ndexnew is the independent variable timeseries, dvar = air, date1 and date2 represent the range of dates in "air" and 12mo is the time interval within both ndexnew and dvar. Lt = the index leadtime in months, so a regression of Oct "air" is being done on the Aug index.</div><div><br></div><div>How do I get my script to override/ignore the official GrADS functions tcorr and tregr with the opengrads functions tcorr2 and tregr2? I prefer to use the latter because they include the fifth argument "dt". Note, other B Tsuang extension functions, such as "if_" work on my linux and the required B Tsuang extension files <u>appear</u> to be present.</div><div><br></div><div>Stephen McMillan</div><div>Research Meteorologist</div><div><br></div><div><br></div><div></div></div></div>
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