[R] Plotting Two Lines

[stats787]

Hi,

I am trying to plot the following data such that both variable y and z vs x.
(ie two lines on a single plot). As the x variable is not numeric, how do I
go about it? Appreciate if any expert could help. 
I know I use plot() follow by lines() to add another line to the plot. But
my problem is i was unable to plot y vs x in the first place.

x	y                        z
D9S1820	1.487983031	0.86998805
9_16.0	1.487983031	0.86998805
D9S1796	1.585360853	1.233512794
9_18.0	1.585360853	1.233512794
D9S1815	2.683400698	2.064643907
9_20.0	2.683400698	2.064643907
D9S1689	3.02200219	2.154777894
KG1617293.209574083	2.436400271
9_22.0	3.209574083	2.436400271
D9S1816	3.615467385	2.695294102
9_24.0	3.615467385	2.695294102
D9S1786	3.787546039	3.300248968
D9S180	3.297311032	3.264321274
D9S1857	2.704872915	2.894489815
9_26.0	2.704872915	2.894489815
D9S1690	1.880744111	2.386263859
9_28.0	1.880744111	2.386263859
D9S271	1.085762652	1.483861423
9_30.0	1.085762652	1.483861423
D9S938	1.191451449	1.417255034
D9S1866	1.235450281	1.439973751
9_32.0	1.235450281	1.439973751
9_34.0	1.235450281	1.439973751
9_36.0	1.235450281	1.439973751
D9S1677	0.455188088	0.598254918
9_38.0	0.455188088	0.598254918
D9S930	0.56082526	0.562725203

Thanks

J

-- 
View this message in context: http://www.nabble.com/Plotting-Two-Lines-tp21637287p21637287.html
Sent from the R help mailing list archive at Nabble.com.