[R-sig-Geo] geom_contour

[Krushil Naik]

Hi, I'm trying to generate a contour plot from a data set I have in Excel
showing how a given set of three of the 8 columns/categories are related to
each other. I pulled out three arbitrary columns using the subset function,
but I'm kinda lost with what to do from there.

Lets say I have this subset:

      x       y       z
-------------------------
      7       6      5.3
      1     3.14   4.0
      5      2.7    6.1

How would I plot a contour graph of the subset? Is that even possible?
Thanks.

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