Displaying 4 results from an estimated 4 matches for "summn".
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2006 Apr 24
1
rmeta: forest plot problem
...Using code below I
plot the forest plot:
library(rmeta)
data (catheter)
a<-meta.MH (n.trt, n.ctrl, col.trt, col.ctrl, data=catheter, names=Name,
subset=c(13,6,5,3,7,12,4,11,1,8,10,2))
summary(a) # odds ratio values and confidence intervals
metaplot(a$logOR, a$selogOR, nn=a$selogOR^-2,a$names, summn=a$logMH,
sumse=a$selogMH, sumnn=a$selogMH^-2, logeffect=TRUE)
Now I would like to add numerical odds ratio values and corresponding
confidence intervals for each study on the second y axis (eg.
http://www.statsdirect.com/help/meta_analysis/cochrane_plot.htm. I try
with 'text' command,...
2006 Aug 24
1
metaplot and meta.summaries
...cision) of the summary
estimate? I can calculate one from the other, right? Just to make sure I'm not
misunderstanding something.
metaplot(CoeffVector, StdErrorVector, nn=NULL, labels=Name, conf.level=0.95,
xlab=paste(CoeffNames[j], CoefficientName[i]),
ylab="Countries",
xlim=NULL, summn=PostCoeffs[1,j], sumse=sqrt(PostVars[1,j]),
sumnn=1/(PostVars[1,j]),
summlabel="Summary",
lwd=2, boxsize=1)
meta.summaries
--------------
What does it mean, when I get the warning message that NaNs were produced in "pchisq(q,
df, lower.tail, log.p)"? Is there something wro...
2006 Nov 16
3
Newbie problem ... Forest plot
...ry(rmeta)
op <- par(lend="square", no.readonly=TRUE)
data(catheter)
a <- meta.MH(n.trt, n.ctrl, col.trt, col.ctrl, data=catheter,
names=Name, subset=c(13,6,5,3,7,12,4,11,1,8,10,2))
# angry fruit salad
metaplot(a$logOR, a$selogOR, nn=a$selogOR^-2, a$names,
summn=a$logMH, sumse=a$selogMH, sumnn=a$selogMH^-2,
logeffect=TRUE, colors=meta.colors(box="magenta",
lines="blue", zero="red", summary="orange",
text="forestgreen"))
par(op) # reset parameters
Of course if someone...
2009 Jun 29
1
Meta-Analysis: Metaplot Labels, SE, and Summary
...tain the following error message:
"expected 'a real' got 'Kovacs'. (Kovacs is the author of the first study
listed in the matrix.) How can we label the plot with authors and dates if
this method of inputting data does not work?
Finally, we are unclear about the arguments "summn", "sumse", and "sumnn".
To what should we set these arguments in order to create a summary line that
illustrates the confidence interval of the mean of all effect sizes in our
meta-analysis?
Thank you very much. I apologize for my proven inability to resolve these
issues w...