plotting question

[Peter Jay Salzman <p dirac org>]

hi all,

first, let me say that gnumeric is one of my favorite programs.  after
retiring my old apple ][, i used windows for about 2 months before
switching to linux.  however, i've used excel as an undergrad at school
and liked it alot.  gnumeric is an excellent piece of work.

that said, i have a question about plotting.

i have some values of magnetization of a thermodynamic system at
different temperatures along with error bars:

    A     B        C        D        E       F       G       H        I
1   T     4        3.5      3        2.5     2.269   2       1.5      1
2   m     0.1686   0.1989   0.2854   0.5420  0.7467  0.9107  0.9862   0.9993
3   +/-   0.0042   0.010    0.018    0.048   0.028   0.0072  0.00085  0.00015

i also have some values that my professor attained:

4   m     0.1667   0.2010   0.2797   0.5401          0.9110  0.9864   0.9992
5   +/-   0.0056   0.0072   0.00173  0.0028          0.0051  0.0092   0.0012



i'd like to graph my values of m vs T with errorbars.

i'd also like to graph my professor's values for m vs T with his
errorbars in a different color on the same graph.

how can this be done?

thanks!
pete