Drawing a multiline graph with ggplot2 from a zoo object

r graph ggplot2 time-series timeserieschart
tagoma picture tagoma · Dec 12, 2012 · Viewed 7.7k times · Source

all.

I read several previous message at stackoverflow, and went through the documentation of zoo and ggplot2 but didn't find any suitable answer.

Say I have a zoo object called 'data'. The original data in the flat file are as follows: 

Date,Quote1,Quote2,Quote3,Quote4,Quote5
18/07/2008,42.36,44.53,28.4302,44.3,42
21/07/2008,43.14,44.87,28.6186,44.83,43.27
22/07/2008,43.26,44.85,28.6056,44.86,42.84
23/07/2008,44.74,45.61,29.7558,45.69,#N/A
24/07/2008,43.99,45.14,29.2944,45.19,#N/A
25/07/2008,43.18,45.33,29.4569,45.46,43.65
28/07/2008,43.45,44.72,28.5016,44.89,43.31
29/07/2008,43.49,44.8,28.1247,44.88,42.85
30/07/2008,44.55,45.54,28.0727,45.58,43.67
31/07/2008,43.36,45.5,27.9818,45.63,43.91
01/08/2008,43.34,44.75,28.0792,44.69,43.04

Now, I want to plot the time series of this five financial products on a single line graph so that to compare their evolution.

I wish to use the ggplot2.

Would anyone be kind to give me some hints?

Answer

G. Grothendieck picture G. Grothendieck · Dec 12, 2012

If data is your zoo object then try this (and see ?autoplot.zoo for more info):

p <- autoplot(data, facet = NULL)
p

or perhaps this since I don't think the automatic varying of linetype looks so good with this many series in the same panel:

p + aes(linetype = NULL)

enter image description here

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