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Hello All,</div>
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I was using an older version of the netmeta package. That's why it showed the error messages.</div>
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It's working after installing the newer version. </div>
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Thank you,</div>
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Marimuthu</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> R-sig-meta-analysis <r-sig-meta-analysis-bounces@r-project.org> on behalf of Marimuthu S via R-sig-meta-analysis <r-sig-meta-analysis@r-project.org><br>
<b>Sent:</b> Sunday, June 15, 2025 11:40 PM<br>
<b>To:</b> R Special Interest Group for Meta-Analysis <r-sig-meta-analysis@r-project.org><br>
<b>Cc:</b> Marimuthu S <sm@mcmaster.ca><br>
<b>Subject:</b> [R-meta] Frequentist network meta-regression using netmeta R package</font>
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<div style="color:#000000"><span style="color:#000000; font-weight:bold">Caution:
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Hello All,</div>
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I am trying to fit a frequentist network meta-regression model using the <i>netmeta
</i>R package. I tried the code given below, although I had loaded the <b>netmeta
</b>R package, it showed the error: 'could not find function 'netmetareg'.' I would greatly appreciate any leads or suggestions you may have.</div>
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<b>R code:</b></div>
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<b><br>
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> library(netmeta)</div>
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> data(smokingcessation)</div>
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> # Add variable with (fictitious) risk of bias values</div>
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> # with 1 = "low risk" and 2 = "high risk"</div>
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> smokingcessation$rob <- rep(1:2, 12)</div>
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> pw1 <- pairwise(list(treat1, treat2, treat3),</div>
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+ event = list(event1, event2, event3), n = list(n1, n2, n3),</div>
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+ data = smokingcessation, sm = "OR")</div>
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> net1 <- netmeta(pw1, common = FALSE, ref = "A")</div>
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> # Network meta-regression with covariate</div>
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> nr1 <- netmetareg(net1, rob)</div>
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<span style="background-color:rgb(255,255,0)">Error in netmetareg(net1, rob) : could not find function "netmetareg"</span></div>
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Warm Regards,</div>
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<b>Marimuthu Sappani,</b></div>
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Ph.D. Candidate <span style="background-color:rgb(255,255,255)">(Biostatistics)</span> </div>
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