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Re: [ferret_users] shaded plot for discrete data

Hi all, 

Was going to reply to David's question about color bar labels with this script from Jaison Kurian (as I just included the link in a reply to a different question):


Using the example he gives, I get the labels to appear in the middle of the color bar segments (as David wants). However, when I replace

let key_text = xsequence({"({"desert","short grass","tundra","everg shrub",\
                "decid shrub","tall grass","crop","irrig crop","mixed tree",\
                "decid tree", "everg tree"})


let key_text = XSEQUENCE({"1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11"})

no labels appear. What am I doing wrong to get numerals as string data? 

Thanks for any clarification,


On Tue, Feb 10, 2009 David Wang wrote:

thank you all for the responses. it seems that there is no straightforward, but workable solution. meanwhile using Matlab could probably save the hassle.


On Tue, Feb 10, 2009 at 8:47 PM, Ryo Furue <furue@xxxxxxxxxx> wrote:

    Hi Ansley and David,

    [. . .]
    | The colorbar labels don't really have any more control than
    | this. [. . .]
    | For a final publication plot, one could remove the colorbar labels
    | using the shakey command, and put new ones on "by hand" with the
    | LABEL command (or by modifying the plot in another graphics program),
    | but that's an arduous process.
    | Anyone else have more ideas??

    We could produce a fake shakey which is actually a plot of
    an artificial 2D field:

     define axis/x=0:10:1 my_x
     define axis/y=0:1:1 my_y
     let a = x[gx=my_x] + 0*y[gy=my_y]

     define view/axes/x=0.1:0.9/y=0.1:0.15 my_view
     set view my_view

        /nokey/nolabel a
     ! Fix the axis labeling and remove unnecessary
     ! elements using ppl commands.

    This isn't particularly elegant.  I'm not sure if it's less
    arduous than what Ansley describes, either.


Paul Young

Chemistry and Climate Processes
Chemical Sciences Division
NOAA Earth System Research Laboratory
325 Broadway R/CSD8
Boulder CO 80305-3328

Tel:   +1 303-497-4711
Fax:   +1 303-497-5686

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