Re: [ferret_users] ppl yfor

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hello again,
I think we're best off just using the F8.0 format. As all values within 
Ferret are real numbers, and trying to write them with an integer format 
for output is the trouble.  There is some logic that can recognize an I 
format code at the start of the format statement and convert the value 
being written to the label to an integer, but in general the Fortran 
format is applied as is to the real number. 
For this statement,

 ppl yfor,("\", i8)  (DOES NOT WORK, WHY? )

We are attempting to write a real number with this I format. It fails 
because it translates internally to writing the real number, say 2.0 to 
a string using the Fortran format  ("\", i8) and the result is ********.

I would suggest instead,
 ppl yfor,("\", f9.0)

Where 9 rather than 8 is used to allow for the decimal point.  I will 
see that this is documented in the Users Guide.

Ansley

Ansley Manke wrote:

> Hi -
> It looks like the machinery that generates strings for labels from a 
> user-supplied format has trouble with a format statement with a string 
> and then an I format.  (The command ppl yfor ("B", i4) also fails, 
> giving B****).  I'll look into this, but in the meantime note that a 
> format of
>
>   ppl yfor ("\", f8.0)
>
> works. The addition of a dot a the end of your numbers may not quite 
> be what you want but it's closer to the desired result.  Note that 
> Prasad is using "\" for a blank; if we just use " ", then subsequent 
> processing removes the blanks preceeding the numbers.
>
> Ansley
>
> Prasad Thoppil (Forn-Natl) wrote:
>
> > I am trying to control the y-axis label format on the right side. See my
> > example below
> >
> > use coads_climatology
> > plot/set/x=65/y=10 uwnd
> > ppl axlabp 1 1
> > ppl yfor,(f8.2)    (WORKS FINE)
> > ppl yfor,("\", f8.2)  (WORKS FINE, I NEED THIS)
> > ppl yfor,(i8) (WORKS FINE)
> > ppl yfor,("\", i8)  (DOES NOT WORK, WHY? )
> > ppl plot
> >
> > Thanks
> >
> > Prasad
> >
> >
> >
> >