Thanks for the suggestion...but R still doesn't like it. Now I have 3 error
messages. It seems to dislike my *err=y* command. I'm going to continue
trying. Thanks for your help! If you happen to spot anything else, please
let me know!
thanks!
beloitstudent
On Sat, Jun 5, 2010 at 5:16 PM, Joris FA Meys [via R] <
ml-node+2244611-1554261936-278...@n4.nabble.com<ml-node%2b2244611-1554261936-278...@n4.nabble.com>
> wrote:
> you can't refer to an argument within a function call. Try
>
> uiw <- Saline[,3]
>
> plotCI(x=Saline [,1],y=Saline [,2], uiw=uiw, liw=uiw, err=y, pch=21,
> pt.bg=par("bg"), cex=1.5, lty=1, type="o", gap=0, sfrac=0.005,
> xlim=c(-21,340),xaxp=c(-20,320,11), xlab="Time (min)", ylim=c(0,12),
> yaxp=c(0,12,11), ylab="Arterial Plasma Acetaminophen (µg/mL)", las=1,
> font.lab=2, add=TRUE)
>
> Cheers
> Joris
>
> On Sat, Jun 5, 2010 at 6:09 PM, beloitstudent <[hidden
> email]<http://user/SendEmail.jtp?type=node&node=2244611&i=0>>
> wrote:
>
> >
> > Hello all,
> >
> > I am an undergraduate student who is having syntax issues trying to get
> > error bars on my graph.
> >
> > This is the data, which I assigned the name "Saline" to.
> > Time Average SEM
> > 1 -20 0.000000 0.0000000
> > 2
> > 3 30 0.000000 0.0000000
> > 4 45 3.227902 0.7462524
> > 5 60 5.066664 1.1623944
> > 6 80 6.107491 1.5027762
> > 7 110 6.968231 1.3799637
> > 8 140 7.325713 1.2282053
> > 9 200 7.875194 1.1185175
> > 10 260 6.513927 0.5386359
> > 11 320 4.204342 0.6855906
> >
> > This is the command that I typed in to get my error bars.
> >
> > plotCI(x=Saline [,1],y=Saline [,2], uiw=Saline [,3], liw=uiw, err=y,
> pch=21,
> > pt.bg=par("bg"), cex=1.5, lty=1, type="o", gap=0, sfrac=0.005,
> > xlim=c(-21,340),xaxp=c(-20,320,11), xlab="Time (min)", ylim=c(0,12),
> > yaxp=c(0,12,11), ylab="Arterial Plasma Acetaminophen (µg/mL)", las=1,
> > font.lab=2, add=TRUE)
> >
> > And this is the error message I keep getting
> > Error in plotCI(x = Saline[, 1], y = Saline[, 2], uiw = Saline[, 3], liw
> =
> > uiw, :
> > object 'uiw' not found
> > In addition: Warning message:
> > In if (err == "y") z <- y else z <- x :
> > the condition has length > 1 and only the first element will be used
> >
> > Now, to me, the command seems correct.
> > I want the error bars to show up where the points on my graph are...so
> the x
> > coordinates should be my time (aka Saline [1]) and the y coordinates
> should
> > be my Averages (aka Saline [2]) and my upper and lower limits to my
> > confidence interval should be the SEM from Saline [3], but something is
> > wrong with this and I cannot figure out what it is. If anyone has
> > suggestions I would be very grateful. Thanks for your help!
> >
> > beloitstudent
> > --
> > View this message in context:
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> >
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>
>
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