accessing repeat loop index

[Steven Hodge <smhodge@xxxxxxxx>]

How does one access the CORRECT value of a REPEAT "index", say, for
example, to display it as a string?  

Example:  I have 3d data defined over (lon,lat) and a Z axis from 2 
to 4 at intervals of 0.5.  A repeat command such as

REPEAT /Z=2:4:0.5 (FILL R)

where "R" is the variable name, works just fine, and displays 5 
successive plots of R, at Z=2,2.5,3,3.5,4.   

However, trying to access the actual value of Z within the REPEAT
loop appears impossible.  For example,

REPEAT /Z=2:4:0.5 (LIST Z)

produces:

REPEAT: Z=2
         Z
         axis ABSTRACT
         Z:2
      2.000
REPEAT: Z=2.5
         Z
         axis ABSTRACT
         Z:2
      2.000
REPEAT: Z=3
         Z
         axis ABSTRACT
         Z:3
      3.000
REPEAT: Z=3.5
         Z
         axis ABSTRACT
         Z:3
      3.000
REPEAT: Z=4
         Z
         axis ABSTRACT
         Z:4
      4.000

There appears to be some sort of rounding going on. 

Can anyone tell me how to access the correct value of the "index"?

Thanks.

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STEVEN HODGE, Geophysicist, Ice & Climate Project
Alaska District Office, Water Resources Division
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