[R] Constructing bar charts with standard error bars

2007-07-25 Thread John Zabroski
I am new to R. I want to graph group data using a "Traditional Bar Chart with Standard Error Bar", like the kind shown here: http://samiam.colorado.edu/~mcclella/ftep/twoGroups/twoGroupGraphs.html Is there a simple way to do this? So far, I have only figured out how to plot the bars using barplo

Re: [R] Constructing bar charts with standard error bars

2007-07-25 Thread Frank E Harrell Jr
John Zabroski wrote: > I am new to R. > > I want to graph group data using a "Traditional Bar Chart with Standard > Error Bar", like the kind shown here: > http://samiam.colorado.edu/~mcclella/ftep/twoGroups/twoGroupGraphs.html There are severe problems with dynamite plots such as these. See ht

Re: [R] Constructing bar charts with standard error bars

2007-07-25 Thread Ben Bolker
John Zabroski gmail.com> writes: > > I am new to R. > > I want to graph group data using a "Traditional Bar Chart with Standard > Error Bar", like the kind shown here: > http://samiam.colorado.edu/~mcclella/ftep/twoGroups/twoGroupGraphs.html > > Is there a simple way to do this? [snip] >

Re: [R] Constructing bar charts with standard error bars

2007-07-26 Thread Ben Bolker
John Zabroski wrote: > On 7/25/07, Ben Bolker <[EMAIL PROTECTED]> wrote: > > Thanks a lot! I tried all three and they all seem very dependable. > Also, I appreciate you rewriting my solution and adding elegance. > > Is there a way to extend the tick marks to the ylim values, such that > the yscal

Re: [R] Constructing bar charts with standard error bars

2007-07-26 Thread John Zabroski
On 7/25/07, Ben Bolker <[EMAIL PROTECTED]> wrote: > John Zabroski gmail.com> writes: > > > The best clue I have so far is Rtips #5.9: > > http://pj.freefaculty.org/R/Rtips.html#5.9 which is what I based my present > > solution off of. > > > > However, I do not understand how this works. It seems