[R-SIG-Finance] Two x and two y vectors in one X-Y coordinatesystem graph
Cedrick W. Johnson
cedrick at cedrickjohnson.com
Sat Apr 10 15:10:32 CEST 2010
I would ask this on the r-help list...
-c
Sent from my BlackBerry®
-----Original Message-----
From: Rajat Tayal <rajat at igidr.ac.in>
Date: Sat, 10 Apr 2010 18:18:20
To: <r-sig-finance at stat.math.ethz.ch>
Subject: [R-SIG-Finance] Two x and two y vectors in one X-Y coordinate
system graph
Hi all,
I have two line graphs drawn with two different pairs of x and y vectors.
The sample dataset is given below. Here, I have two X vectors assuming positive values.
Only one of the y vectors assumes positive values, while the other y vector assumes negative values.
X1
Y1
X2
Y2
35
0.000534
265
-0.000534
47
0.000639
281
-0.000570
65
0.000744
282
-0.000572
865
0.001312
283
-0.000575
1265
0.001342
284
-0.000579
1315
0.001346
285
-0.000584
1325
0.001347
885
-0.001635
1472
0.001362
886
-0.001636
1477
0.001364
887
-0.001637
1536
0.001386
888
-0.001638
1541
0.001388
889
-0.001640
2492
0.001617
890
-0.001641
2506
0.001622
920
-0.001688
2516
0.001626
970
-0.001761
I am able to plot them as separate graphs using :
pdf("plot.pdf", height=9, width=6)
par(mfrow=c(1,2))
plot(y=y1, x=x1, lwd=2, col="blue", type="l")
plot(y=y2, x=x2, lwd=2, col="red", type="l")
dev.off()
but would like to plot them on one graph in a X-Y coordinate system setup .
The idea is to somehow flip one of the curves to the third quadrant of the X-Y coordinate space while the other curve is in the first quadrant.
How do I plot the two graphs in one figure ???
Any help would be highly useful.
Rajat Tayal
Ph.D Economics Candidate
Indira Gandhi Institute of Development Research,
Gen A.K.Vaidya Marg, Filmcity Road,
Santosh Nagar, Goregaon (East),
MUMBAI- 400 065.
02228416285, 09987284080
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