Re: [ferret_users] ppl xfor stops working.

["William S. Kessler" <William.S.Kessler@xxxxxxxx>]

To follow up on the use of text in labels, note that you can also put  
the text *before* the number:

yes? plot/set exp(x[gx=0:3:.1])
yes? ppl yfor,(''$'',f3.0)    ! label axis numbers with dollar signs
yes? ppl plot

Or both before and after:

yes? plot/set exp(x[gx=0:3:.1])
yes? ppl yfor,(''('',f3.0,'')'')
yes? ppl plot

Not obvious why that would ever really be useful ....

But you might want to do this, if you didn't like the default labels:

yes? plot/set exp(x[gx=10:25:1])/1e9
yes? ppl yfor,(i3,''x10^9'')
yes? ppl plot

Billy K

On Aug 3, 2007, at 5:04 PM, William S. Kessler wrote:

> Hi Ryo -
>
> The problem is the blank space between i5, and ''LONW''. Take that  
> out and I think it will work correctly.
>
> Regarding the labels without degree marks .... You can in fact put  
> any text within those double-single quotes, and it will follow the  
> number. Therefore if you were making a map entirely within a single  
> hemisphere, you could get labels without degree marks by statements  
> of the form:
>
> ppl xfor,(i5,''W'');ppl yfor,(i5,''N'')
>
> One way this might be useful is if there is a temperature axis,  
> then you could label it in degrees:
>
> ppl yfor,(i5,''#'')
>
> However, I can't think of any automatic way to simply remove the  
> degree marks if the map crosses the equator or 0/180 longitude.
>
> Personally, I insist on degree marks on map figures, and think that  
> one of Ferret's advantages over, say, matlab, is that it does make  
> these more professional-looking plots. What I do object to in  
> Ferret is the useless labels "latitude" and "longitude". I think  
> you need either those or degree marks on a map plot, and degree  
> marks use far less space and look much better.
>
> Billy K
>
> On Aug 3, 2007, at 3:38 PM, Ryo Furue wrote:
>
> > Hi Ferret users,
> >
> > I seem to have lost the ability of changing xfor.
> > The following ferret session produced the attached plot,
> > where the horizontal axis shows "50LONW", "100LONW", etc.!
> >
> >   bash$ ferret
> >    	NOAA/PMEL TMAP
> >    	FERRET v6.02
> >    	Linux(g77) 2.4.21-32 - 04/30/07
> >    	 3-Aug-07 12:19
> >
> >   set mode grat:dash
> >   yes? use coads_climatology
> >   yes? SHADE/L=1/SET sst
> >   yes? PPL XFOR (i5, ''LONW'')
> >   yes? PPL shade
> >   yes? frame/file=xfor-lonw.gif
> >   yes? quit
> >   bash$
> >
> > I took this example from "Appendix B Sec9.91" of
> > "FERRET USER'S GUIDE Version 6.02".  Is this one of the things fixed
> > in the latest version of Ferret?
> >
> > Also, I've been wondering if it's possible to have labels like
> > "40S", "20S", . . . , "20N", "40N" without the degree symbol "^o" ?
> > Labels with the degree symbol are more elegant, but when you pursue
> > legibility while trying to squeeze useless blank space out of your
> > plot, you sometimes want to get rid of the degree symbol.  (OK, we
> > can do that by printing the labels using the LABEL command one by  
> > one,
> > but . . . )
> >
> > Regards,
> > Ryo
> > <xfor-lonw.gif>