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INTERPOLATE [message #20166]

Thu, 18 May 2000 00:00

Michael Cugley
Messages: 9
Registered: May 2000

Junior Member

Maybe it's me, but this seems wrong...

IDL> foo = [[1000.0, 1000.0],[-1000.0, -1000.0]]
IDL> print, foo
1000.00 1000.00
-1000.00 -1000.00

IDL> x = [0.0, 0.5, 1.0]

IDL> bar = interpolate(foo, x, x,/grid)
IDL> print, bar
1000.00 1000.00 1000.00
0.00000 0.00000 0.00000
-1000.00 -1000.00 -1000.00

IDL> y = findgen(4) / 3
IDL> print, y
0.00000 0.333333 0.666667 1.00000

IDL> bleeble = interpolate(bar, y, y, /grid)

IDL> print, foo
1000.00 1000.00
-1000.00 -1000.00
IDL> print, bar
1000.00 1000.00 1000.00
0.00000 0.00000 0.00000
-1000.00 -1000.00 -1000.00
IDL> print, bleeble
1000.00 1000.00 1000.00 1000.00
666.667 666.667 666.667 666.667
333.333 333.333 333.333 333.333
0.00000 0.00000 0.00000 0.00000

??? Where's my -1000 values gone?
--
Michael Cugley (mjcugley@medphys.dundee.ac.uk)

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