Re: [R] How do I plot a line followed by two forecast points?

US Fish Wildlife Service California, USA --- On Fri, 8/7/09, Clint Bowman cl...@ecy.wa.gov wrote: From: Clint Bowman cl...@ecy.wa.gov Subject: Re: [R] How do I plot a line followed by two forecast points? To: Jorgy Porgee jorgy.por...@gmail.com Cc: Jean V Adams jvad...@usgs.gov, r-help@r

Re: [R] How do I plot a line followed by two forecast points?

. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish Wildlife Service California, USA --- On Fri, 8/7/09, Clint Bowman cl...@ecy.wa.gov wrote: From: Clint Bowman cl...@ecy.wa.gov Subject: Re: [R] How do I plot a line followed by two forecast points? To: Jorgy Porgee

[R] How do I plot a line followed by two forecast points?

Good day all, I'm trying to plot a continuous line plot, which is followed by two forecast points eg. one forecast point is 12 months out, and another 24 months out from the last date of the line plot. In my attempts so far, the second plot (the forecast points) is scaled against a new axis

Re: [R] How do I plot a line followed by two forecast points?

Hi Jean, Thank you for the reply. I do have the forecast points before I plot, the example below was just for illustration purposes..If I am to add the forecast points to one y-series data plot however, is there a way of highlighting them? This is essentially what I'm trying to do below by

Re: [R] How do I plot a line followed by two forecast points?

Because you know a priori the dates associated with your forecast points you could use the col= in the plot function to change colors for the last two points (may require some mathmatical gymnastics to specify the colors desired--I've set up a vector and created an index from either the x or y

Re: [R] How do I plot a line followed by two forecast points?

Just wait until after you have the forecasts before you create the plot. # Sample dates xValues - seq.Date(as.Date(1990-01-31), to=as.Date(1992-12-31), by=month) # Sample y value yValues - seq(0.1, length=length(xValues)) # Sample forecast one year from xValue's end point fcastDate -

Re: [R] How do I plot a line followed by two forecast points?

Run this codes: plot( 1:20, type='l') lines( 0.5*1:20, col=2) If you use par(new=T), this will call a new high-level graphic device, which is why the axes do not match. Alternatively, you can set ylim and pass the arguments to two plot functions: plot( rnorm(100), type='h', ylim=c(-3,3))