[R-meta] Robvis - how to work with it and metafor

Tue, Nov 7, 2023 10:36 PM

Dear Wolfgang,
thank you for clarification.
I misunderstood for what Robvis was created. I thought it was there to
assess and help with publication bias and not to add a few coloured circles
to the forest plot.I found this: DOI: 10.1111/2041-210X.13724 and will
study it.
best,
Andrzej

wt., 7 lis 2023 o 10:50 Viechtbauer, Wolfgang (NP) <
wolfgang.viechtbauer at maastrichtuniversity.nl> napisa?(a):

Dear Andrzej,

Please post in plain text (note how the code in your post below is quite
mangled up).

I am not sure if I quite understand your questions, but 'dat_rob' was
created to illustrate how to add risk of bias assessments to a forest plot.
It was created with rob_dummy(), which just simulates some RoB values for a
given dataset for illustration purposes:

https://mcguinlu.github.io/robvis/reference/rob_dummy.html

As for that book chapter: The spreadsheet contains the RoB assessments for
the dataset used in their example. Not sure what else to say about this.

Best,
Wolfgang

-----Original Message-----
From: R-sig-meta-analysis <r-sig-meta-analysis-bounces at r-project.org>

On Behalf

Of Andrzej Andrzej via R-sig-meta-analysis
Sent: Sunday, November 5, 2023 12:50
To: R Special Interest Group for Meta-Analysis <r-sig-meta-analysis at r-
project.org>
Cc: Andrzej Andrzej <xaf3111.developers at gmail.com>
Subject: [R-meta] Robvis - how to work with it and metafor

Hi,
I have read this:
https://mcguinlu.github.io/robvis/articles/metafor.html
There is a step in it like:
```

# Create some example data for ROB2 using rob_dummy(), and add it to
the BCG# data.# We don't need a "Study" column for this example, so we
set `study = FALSE`dat_rob <- rob_dummy
<https://mcguinlu.github.io/robvis/reference/rob_dummy.html>(13,
               "ROB2",                     study = FALSE)dat_analysis
<- cbind <https://rdrr.io/r/base/cbind.html>(dat_bcg, dat_rob)

```
Why dat_rob was created and attached to dat_bcg ?
What is this for ? Is it only an example to show coloured visualisation ?
Or does it thoroughly calculating ROB for bcg.data ?
And here:

https://bookdown.org/MathiasHarrer/Doing_Meta_Analysis_in_R/risk-of-bias-

plots.html
they described an excel table with some data to be created before

importing

it to R.
Anybody knows what is this about ?
best,
Andrzej

[R-meta] Robvis - how to work with it and metafor

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