[ncl-talk] Plot wavelet with "Months" as X-axis

[Dennis Shea]

That should be:

 res at tmXBMode     = "Explicit"
 res at tmXBValues   = (/3000,3500,4000,.....,8000/)  ;  whatever
 res at tmXBLabels   = (/"Jan","Feb",.....,"Dec"/)



On Fri, Jan 13, 2017 at 9:12 AM, Dennis Shea <shea at ucar.edu> wrote:

> You will have to put in the correct numbers. ncl-talk has no idea to what the 'time' axis refers refers
>
>
>  res at tmYLMode     = "Explicit"
>  res at tmYLValues   = (/3000,3500,4000,.....,8000/)
>  res at tmYLLabels   = (/"Jan","Feb",.....,"Dec"/)
>
>
> On Thu, Jan 12, 2017 at 11:16 PM, Lyndon Mark Olaguera <
> olagueralyndonmark429 at gmail.com> wrote:
>
>> Hi All,
>>
>> I'm plotting a wavelet based from this example https://www.ncl.ucar.e
>> du/Document/Functions/Built-in/wavelet.shtml
>>
>> Is there an easy way to make the x-axis in terms of months (Jan to Dec)?
>>
>> Here's my code:
>>
>> begin
>> ;************************************
>> ; create pointer to file and read in variables
>> ;************************************
>>   f    = addfile ("hpass_SCS.nc","r")
>>   prec  = f->PREC(:,0,0)                     ; one value/year
>>   time = prec&time
>>   N    = dimsizes(time)
>> ;************************************
>> ; Remove mean and linear trend (recommended, not required)
>> ; Missing values are not allowed.
>> ;************************************
>>   prec  = dtrend(prec,False)
>> ;************************************
>> ; compute wavelet (Missing values not allowed due to use of FFT)
>> ;************************************
>>   mother  = 0
>>   param   = 6.0
>>   dt      = 1.
>>   s0      = 0.25
>>   dj      = 0.25
>>   jtot    = 44
>>   npad    = N
>>   nadof   = new(2,float)
>>   noise   = 1
>>   siglvl  = .05
>>   isigtest= 1
>>
>>   w = wavelet(prec,mother,dt,param,s0,dj,jtot,npad,noise,isigtest,
>> siglvl,nadof)
>> ;************************************
>> ; create coodinate arrays for plot
>> ;************************************
>>   power            = onedtond(w at power,(/jtot,N/))
>>   power!0          = "period"                        ; Y axis
>>   power&period     = w at period
>>
>>   power!1          = "time"                          ; X axis
>>   power&time       = time
>>
>>   power at long_name  = "Power Spectrum"
>>   power at units      = "unit^2"
>>
>>
>> ;************************************
>> ; initial resource settings
>> ;************************************
>>   wks = gsn_open_wks("png","wavelet")             ; send graphics to PNG
>> file
>>   res                     = True                  ; plot mods desired
>>   res at cnFillOn            = True                  ; turn on color
>>   res at cnFillPalette       = "BlAqGrYeOrReVi200"   ; set color map
>>   res at cnFillMode          = "RasterFill"          ; turn on raster mode
>>   res at cnRasterSmoothingOn = True                  ; turn on raster
>> smoothing
>>   res at cnLinesOn           = False                 ; turn off contour
>> lines
>>   res at lbOrientation       = "Vertical"            ; vertical label bar
>>   res at trYReverse          = True                  ; reverse y-axis
>>   ;res at tmLabelAutoStride   = True
>>   res at cnLevelSelectionMode = "ManualLevels"       ; set manual contour
>> levels
>>   res at cnMinLevelValF       = 0.0                  ; set min contour level
>>   res at gsnLeftString       = "Wavelet Power"
>>   plot = gsn_csm_contour(wks,power({0:120},:),res)
>> end
>>
>>
>> I'll appreciate any help.
>>
>> Many thanks,
>>
>>
>>
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>
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