[R] Dose-response relationship using metafor?
I am currently working a meta-analysis that is exploring the effect of a drug on plasma lipid levels. However, I am primarily interested in assessing the overall dose-response relationship with mean change in lipids. I have used the metafor package to conduct a meta-regression but is there a way to determine if this relationship is linear? Something like a p-value for trend? Thanks so much! PHRI DISCLAIMER This information is directed in confidence solely to the person named above and may not otherwise be distributed, copied or disclosed. Therefore, this information should be considered strictly confidential. If you have received this email in error, please notify the sender immediately via a return email for further direction. Thank you for your assistance. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Contingency table and mean(sd)
Hi All, I have a question regarding contingency tables. I would like to calculate the mean and standard deviation of a continuous variable from my own dataset based on the percentages of a contingency table I obtained from a scientific article. dataset- data.frame(cbind(case=rep(0:1,5), x1=c(1:10), x2=c(0:9))) contingency_table- matrix(c(100, 75, 65, 85, 90, 87), nrow=3, ncol=3) In other words I would like to calculate the mean and standard deviation of X1 based on the frequencies of the contingency table. Thank you so much for all your help! PHRI DISCLAIMER This information is directed in confidence solely to the person named above and may not otherwise be distributed, copied or disclosed. Therefore, this information should be considered strictly confidential. If you have received this email in error, please notify the sender immediately via a return email for further direction. Thank you for your assistance. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Forest Plot Text
Hello All, I am having a problem creating text for my forest plot using the forestplot function in the rmeta package. I think my problem is that I have too many columns of text, so I was wondering if there is a way to shrink my text or to change the default setting. Here is an example: forest_mean- as.numeric(c(NA, 1.00, 2.00, NA, 0.75, 1.10)) forest_lower- as.numeric(c(NA, 0.85, 1.35, NA, 0.70, 0.80)) forest_upper- as.numeric(c(NA, 1.15, 2.65, NA, 0.80, 1.40)) forest_pval- as.numeric(c(NA, 0.004, 0.100,NA, 0.360, 0.080)) forest_int- as.numeric(c(NA,NA,NA,0.00, NA, NA)) forest_number_clop- c(NA, 10.0% (10/100), 5% (5/100), NA, 9% (9/100), 4% (4/100)) forest_number_plac- c(NA, 11% (11/100), 30% (30/100), NA, 15% (15/100), 20% (20/100)) forest_text- c(NA, 1.00 (0.85-1.15), 2.00 (1.35-2.65), NA, 0.75 (0.70-0.80), 1.10 (0.80-1.40)) Label_text_forest- c(Outcome A, Exposure 1, Exposure 2, Outcome B, Exposure 1, Exposure 2) forest_text_table- cbind(Label_text_forest, forest_number_clop, forest_number_plac, forest_text, forest_pval, forest_int) plot1- forestplot(forest_text_table, forest_mean, forest_lower, forest_upper, digits=2,graphwidth = unit(2,inches), zero=1, clip = c(0.1, 2.50), title(main=Forest Plot)) I get the error message: Error in unit(rep(1, sum(widthcolumn)), grobwidth, labels[[1]][widthcolumn]) : 'x' and 'units' must have length 0. Does anyone know how to fix this? S PHRI DISCLAIMER This information is directed in confidence solely to the person named above and may not otherwise be distributed, copied or disclosed. Therefore, this information should be considered strictly confidential. If you have received this email in error, please notify the sender immediately via a return email for further direction. Thank you for your assistance. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Combing forest plots
Hi All, I am trying to combine two forest plots on the same page using the forestplot function in the rmeta package. Once I use the par() function to combine my plots on the same page, I find that my two plots are overlaying each other. Does anyone have any suggestions on how to fix this? Thanks! PHRI DISCLAIMER This information is directed in confidence solely to the person named above and may not otherwise be distributed, copied or disclosed. Therefore, this information should be considered strictly confidential. If you have received this email in error, please notify the sender immediately via a return email for further direction. Thank you for your assistance. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Three-way interaction plot
Hello All, I need to create a three-way interaction plot and I was wondering if anyone could recommend a package I could use to design these plots. Thank you! PHRI DISCLAIMER This information is directed in confidence solely to the person named above and may not otherwise be distributed, copied or disclosed. Therefore, this information should be considered strictly confidential. If you have received this email in error, please notify the sender immediately via a return email for further direction. Thank you for your assistance. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Reshape Columns
Hello, I have a general formatting question. I have two columns of data: ColA - c(m, m, m, m) ColB- c(d,d,d,d) And I would like to reorder them into a new column that looks like this: ColC- c(m,d,m,d,m,d,m,d) Thank you! Stephanie PHRI DISCLAIMER This information is directed in confidence solely to the person named above and may not otherwise be distributed, copied or disclosed. Therefore, this information should be considered strictly confidential. If you have received this email in error, please notify the sender immediately via a return email for further direction. Thank you for your assistance. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
