I am trying to plot a time series (a stock index) with dates on the x-axis. If I type: plot(a,b) where a is the vector of dates obtained with chron() and b is the time series, I get a nice plot. If I type: plot(a,b,type="l") to obtain the same plot with a continuous line instead of dots, I get the plot of the time series, but the graph is all scattered with numbers (thousands of numbers everywhere!). What is wrong? Is there a better way to get plots with dates on the x-axis? Thank you. Marco Taboga(mtaboga at tiscalinet.it) -------------- next part -------------- An HTML attachment was scrubbed... URL: https://stat.ethz.ch/pipermail/r-help/attachments/20010430/6a61f16b/attachment.html
Crazy plots of time-series against dates
2 messages · Marco Taboga, Thomas Lumley
On Mon, 30 Apr 2001, Marco Taboga wrote:
I am trying to plot a time series (a stock index) with dates on the x-axis. If I type: plot(a,b) where a is the vector of dates obtained with chron() and b is the time series, I get a nice plot. If I type: plot(a,b,type="l") to obtain the same plot with a continuous line instead of dots, I get the plot of the time series, but the graph is all scattered with numbers (thousands of numbers everywhere!). What is wrong? Is there a better way to get plots with dates on the x-axis? Thank you.
The lines are joined in the order than the points are plotted. This is the order in the dataset, not the order of the x variable. One possibility is oo<-order[a] plot(a[oo],b[oo],type="l") -thomas Thomas Lumley Asst. Professor, Biostatistics tlumley at u.washington.edu University of Washington, Seattle -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._