[ncl-talk] trend_query

[Dennis Shea]

I believe ncl-talk has been down his raod with you before. Please look at
the error messages and *always* include printVarSummary of the the
variables used. Place the ***before*** the line where the error occurs.

printVarSummary(x)
printVarSummary(y)
or
printVarSummary(y(lat|:,lon|:,time|:) )

rc = *regCoef*(x, y(lat|:,lon|:,time|:) )

The error message state:




*fatal:regCoef: The rightmost dimension of x must be equal to the
rightmost dimension of y*

Please look  ....

What are the sizes of 'x' and the rightmost dimension of 'y' ?



On Mon, Jan 2, 2017 at 10:45 AM, Kunal Bali <kunal.bali9 at gmail.com> wrote:

> I have 6.2.0 NCL version
>
> I tried with
>
> rc = *regCoef*(x, y(lat|:,lon|:,time|:) )
>
> but still getting some error
>
> *fatal:regCoef: The rightmost dimension of x must be equal to the rightmost dimension of y*
>
>
>
> regards
> Kunal Bali
>
>
>
>
>
>
> On Mon, Jan 2, 2017 at 9:24 PM, Dennis Shea <shea at ucar.edu> wrote:
>
>> I would recommend:
>>
>> http://www.ncl.ucar.edu/Document/Functions/Built-in/regCoef_n.shtml
>>
>> This is the most recent version. As noted in the documentation:
>> Note: with NCL V6.2.1 or later, you can use *regCoef_n*
>> <http://www.ncl.ucar.edu/Document/Functions/Built-in/regCoef_n.shtml> to
>> avoid having to reorder the arrays first:
>>
>>    rc   = *regCoef_n* <http://www.ncl.ucar.edu/Document/Functions/Built-in/regCoef_n.shtml>(x, y, 0, 0)
>>
>> ===
>>
>> ****PLease See: Example 2***
>>
>> rc   = *regCoef_n*(time, ts, 0, 0) ; *rc(nlat,mlon)*
>>
>> copy_VarCoords(ts(0,:,),rc)
>> printVarSummary(rc)
>>
>> =====
>> Using the original regCoef rather than regCoef_n may require the arrays
>> to be reordered.
>>
>> http://www.ncl.ucar.edu/Document/Functions/Built-in/regCoef-1.shtml
>>
>> ****See: Examples 2 and 3***
>>
>>    rc   = *regCoef*(x, y(lat|:,lon|:,time|:) )
>>
>> If *y* has coordinate variables
>> <http://www.ncl.ucar.edu/Document/Language/cv.shtml> these may readily
>> be assigned via NCL syntax:
>>
>>    rc!0   = "lat"    ; name dimensions
>>    rc!1   = "lon"
>>    rc&lat = y&lat    ; assign coordinate values to named dimensions
>>    rc&lon = y&lon
>>
>>
>>
>>
>> On Mon, Jan 2, 2017 at 3:01 AM, Kunal Bali <kunal.bali9 at gmail.com> wrote:
>>
>>> Dear NCL users,
>>>
>>> I have the data with time steps > 1000
>>>
>>> I want to plot the spatial map of trend analysis of the given dataset.
>>> So I tried the script given below for getting the desired plot but
>>> couldn't successed.
>>>
>>> the given error is
>>>
>>>
>>> *fatal:regCoef: The rightmost dimension of x must be at least
>>> 2fatal:["Execute.c":8567]:Execute: Error occurred at or near line 32 in
>>> file trend.ncl*
>>>
>>> Could anyone please help me out
>>>
>>>
>>>
>>>    tmp  = a->SWTNTCLR
>>>    ts   = tmp(time|:,lat|:,lon|:)               ; reorder variable
>>>
>>>    delete(tmp)                                  ; no longer needed
>>>
>>> ;************************************************
>>> ; create x and calculate the regression coefficients (slopes, trends)
>>> ;************************************************
>>>    time         = ts&time                       ; days since 1850-01-01
>>>    rc           = regCoef(time,ts)
>>>
>>>    rc at long_name = "regression coefficient (trend)"
>>>    rc at units     = ts at units+"/day"
>>> ;   copy_VarCoords(ts(:,:,0), rc)                ; copy lat,lon coords
>>>
>>>
>>> ;************************************************
>>> ; plotting parameters
>>> ;************************************************
>>>    wks  = gsn_open_wks("ps" ,"regress")
>>>    gsn_define_colormap(wks,"ViBlGrWhYeOrRe")    ; choose colormap
>>>
>>>    res                       = True
>>>    res at gsnMaximize           = True             ; make large
>>>
>>>    res at cnFillOn              = True             ; turn on color
>>>    res at cnLinesOn             = False            ; turn off contour lines
>>>    res at cnLineLabelsOn        = False            ; turn off contour line
>>> labels
>>>  ;;res at cnFillMode            = "RasterFill"
>>>
>>> ;   res at cnLevelSelectionMode  = "ManualLevels"   ; set manual contour
>>> levels
>>> ;   res at cnMinLevelValF        =  -1.00           ; set min contour level
>>> ;   res at cnMaxLevelValF        =   1.00           ; set max contour level
>>>    res at cnLevelSpacingF       =   0.10           ; set contour interval
>>> ;
>>>    res at mpFillOn              = False            ; turn off default
>>> background gray
>>>  ;  res at mpCenterLonF          = 210
>>>
>>>    res at tiMainString          = fili
>>>    plot = gsn_csm_contour_map_ce(wks,rc,res)
>>>   end
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> Regards
>>> Kunal Bali
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> ncl-talk mailing list
>>> ncl-talk at ucar.edu
>>> List instructions, subscriber options, unsubscribe:
>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>
>>>
>>
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk at ucar.edu
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20170102/2eaeea04/attachment.html