Re: errorlines vs errorbars

[Allin C. <cot...@wf...>]

On Thu, 20 Mar 2008, Hans-Bernhard Bröker wrote:

> Allin Cottrell wrote:
> > Is there any real difference between "errorbars" and "errorlines"?  
> 
> Yes.  "errorlines" relates to "errorbars" the same way 
> "linespoints" does to "points".
> 
> > From the help for errorbars it sounds as if there should be a 
> > difference, but I can't see any in the output.
> 
> The output of... what?  Here's an example...

Thanks, that clarifies things.  I now realize that I wasn't seeing 
a difference because in the plots I was looking at the point 
forecast was plotted as a line in its own right, hence supplying 
the "missing element" in the "errorbars" plot style for the 
standard errors.

> > One feature that would be nice to have -- and that, for a 
> > moment, I thought "errorlines" might provide -- is the ability 
> > to plot a primary series plus y-axis error high and low using 
> > just lines (and not vertical bars) for all 3 components.  
> > (This is the most common way of graphing forecasts with error 
> > bands in economics.)
> 
> No.  If that were what it did, it would be called "errorband" or 
> "corridor" ;-)

OK.  Then "errorband" would be nice to have, though not essential.

Allin Cottrell