[ncl-talk] Fewer questions about a Histogram Plot

[Barry Lynn]

Hello:

I found the coding lines that allows me to map the number of intervals,
explicitly.  I found the coding lines that allow me to specify how many of
the labels I want to map.

That's here:

https://www.ncl.ucar.edu/Applications/Scripts/histo_3.ncl

 res at tmXBLabelStride                = 2     ; every other x-label
  res at gsnHistogramDiscreteBinValues  = ispan(0,25,1)

However, I don't see how to change the number of labels to be different
from their default number, which equals the number of tmXBValues.

I need to set the latter so that I can add more than 9 labels.

Thank you


(0) res at tmXBLabels = -9

(1) res at tmXBLabels = 0

(2) res at tmXBLabels = 9

(3) res at tmXBLabels = 18

(4) res at tmXBLabels = 27

(5) res at tmXBLabels = 36

(6) res at tmXBLabels = 45

(7) res at tmXBLabels = 54

(8) res at tmXBLabels = 63

(0) tmXBValues = 0.0555556

(1) tmXBValues = 0.166667

(2) tmXBValues = 0.277778

(3) tmXBValues = 0.388889

(4) tmXBValues = 0.5

(5) tmXBValues = 0.611111

(6) tmXBValues = 0.722222

(7) tmXBValues = 0.833333

(8) tmXBValues = 0.944444

On Mon, Nov 20, 2017 at 3:01 PM, Barry Lynn <barry.h.lynn at gmail.com> wrote:

> Hi:
>
> I can get the labels to display correctly if I use:
>
> res at tmXBLabels = int_radar(::3)
>
>
> However, the histogram program is amalgamating the smaller bins into 10
> sized default bins.
>
>
> I would hope that there is a way to explicitly tell the histogram program
> to use all the interval data (23 intervals.
>
>
> I tried setting:
>
>
> res at tmXBMode        = "Manual"
>
> and creating manual tick marks, but then my histogram labels go only from
> 0 to 1.
>
>
> As below.
>
>
>  rad_inc = 3./(int_radar(dimsizes(int_radar)-1)+10)
>
>   print("rad_inc  = " +rad_inc)
>
>   new_ticks = new(dimsizes(int_radar),float)
>
>   new_ticks(0)= 0
>
>   do inc = 1,dimsizes(int_radar)-1,1
>
>    new_ticks(inc) = new_ticks(inc-1)+rad_inc
>
>   end do
>
>   print("new_ticks = " + new_ticks)
>
>   res at tmXBValues := new_ticks
>
>   res at tmXBLabels := int_radar
>
> On Sun, Nov 19, 2017 at 9:21 PM, Barry Lynn <barry.h.lynn at gmail.com>
> wrote:
>
>> Hi:
>>
>> I am having trouble figuring out why my histo.ncl program won't plot data
>> beyond value (x-axis) of 15.  This is really dbz data, so the range is
>> correct: -9 to 60.
>>
>> I also checked that the labels are present in:
>>
>> res at tmXBLabels = int_radar
>>
>>
>> and the data dimensions are correct (23 elements).
>>
>> However, I don't see any data (and any labels 18-60) indicating that the
>> data has all been displayed.
>>
>> Thank you,
>>
>> Barry
>>
>> --
>> Barry H. Lynn, Ph.D
>> Senior Lecturer,
>> The Institute of the Earth Science,
>> The Hebrew University of Jerusalem,
>> Givat Ram, Jerusalem 91904, Israel
>> Tel: 972 547 231 170
>> Fax: (972)-25662581
>>
>> C.E.O, Weather It Is, LTD
>> Weather and Climate Focus
>> http://weather-it-is.com
>> Jerusalem, Israel
>> Local: 02 930 9525
>> Cell: 054 7 231 170
>> Int-IS: x972 2 930 9525
>> US 914 432 3108 <(914)%20432-3108>
>>
>
>
>
> --
> Barry H. Lynn, Ph.D
> Senior Lecturer,
> The Institute of the Earth Science,
> The Hebrew University of Jerusalem,
> Givat Ram, Jerusalem 91904, Israel
> Tel: 972 547 231 170
> Fax: (972)-25662581
>
> C.E.O, Weather It Is, LTD
> Weather and Climate Focus
> http://weather-it-is.com
> Jerusalem, Israel
> Local: 02 930 9525
> Cell: 054 7 231 170
> Int-IS: x972 2 930 9525
> US 914 432 3108 <(914)%20432-3108>
>



-- 
Barry H. Lynn, Ph.D
Senior Lecturer,
The Institute of the Earth Science,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581

C.E.O, Weather It Is, LTD
Weather and Climate Focus
http://weather-it-is.com
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
US 914 432 3108
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