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Hi NCL users,</p>
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I created a loop for calculating a linear trend sensitivity for different start and end dates. </p>
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My timeseries span over 1980-2010 and I want to calculate the linear trend of the timeseries for when the start - end date are more than >= 9years.
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(1980-1989, 1980-1990, 1980-1991,..., 1980-2010</p>
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1981-1990, 1981-1991, ..., 1981-2010</p>
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...</p>
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...</p>
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...</p>
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2000-2009, 2001-2010<br class="">
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2001-2010)</p>
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I’ve created the loops that calculate those values but I need to save them in an array as 4 different columns (start_date, end_date,trend_slope,reg_coeff)</div>
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<span style="font-size: 12pt;" class="">My aim is to plot those as a a contour box plot with x axis the start date and y axis the end date, and the calculated (i’m gonna filter out those values with some criteria) trend values based on a colormap.</span></div>
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<div style="margin-top: 0px; margin-bottom: 0px;" class=""><font face="Calibri, Arial, Helvetica, sans-serif" size="3" class="">Can you help me in order to save the values to that new array so I can plot it?</font></div>
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A snippet of the code follows:</div>
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<div class=""><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: medium;" class="">do i=1980,2001,1</span></div>
<div class=""><font face="Calibri, Arial, Helvetica, sans-serif" size="3" class=""> </font><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: medium;" class="">do j=1989,2010,1</span></div>
<div class=""><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: medium;" class=""> ntimes=ispan(i,j,1)</span></div>
<div class=""><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: medium;" class="">if (j-i .ge. 9 ) then</span></div>
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</font><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: medium;" class=""> test_rc=regline_stats(ntimes,value_test({i:j}))</span></div>
<div class=""><font face="Calibri, Arial, Helvetica, sans-serif" size="3" class=""> print(test_rc)</font></div>
<div class=""><font face="Calibri, Arial, Helvetica, sans-serif" size="3" class=""> start_date=i</font></div>
<div class=""><font face="Calibri, Arial, Helvetica, sans-serif" size="3" class=""> end_date=j</font></div>
<div class=""><font face="Calibri, Arial, Helvetica, sans-serif" size="3" class=""> trend_slope=test_rc@b*10 ; prints slope of the linear trend for the selected range of years</font></div>
<div class=""><font face="Calibri, Arial, Helvetica, sans-serif" size="3" class=""> reg_coeff=test_rc@b95 ; prints 2.5% and 97.5% regression coefficient confidence intervals </font></div>
<div class=""><font face="Calibri, Arial, Helvetica, sans-serif" size="3" class="">else print(“this age range has not been selected, since its less than 9 years")</font></div>
<div class=""><font face="Calibri, Arial, Helvetica, sans-serif" size="3" class=""> end if </font></div>
<div class=""><font face="Calibri, Arial, Helvetica, sans-serif" size="3" class=""> delete(ntimes)</font></div>
<div class=""><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: medium;" class="">end do</span></div>
<div class=""><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: medium;" class="">end do </span></div>
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Cheers,</div>
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Andreas</div>
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<div class="">Andreas</div>
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