Try something like the following copdat$degrees <- c(1:180)
John David Sorkin M.D., Ph.D. Professor of Medicine Chief, Biostatistics and Informatics University of Maryland School of Medicine Division of Gerontology and Geriatric Medicine Baltimore VA Medical Center 10 North Greene Street<x-apple-data-detectors://12> GRECC<x-apple-data-detectors://12> (BT/18/GR) Baltimore, MD 21201-1524<x-apple-data-detectors://13/0> (Phone) 410-605-711<tel:410-605-7119>9 (Fax) 410-605-7913<tel:410-605-7913> (Please call phone number above prior to faxing) On Jul 24, 2021, at 2:41 PM, Thomas Subia via R-help <r-help@r-project.org> wrote: Colleagues, Here is my code which plots sin(x) vs x, for angles between 0 and 180 degrees. library(ggplot2) library(REdaS) copdat$degrees <- c(0,45,90,135,180) copdat$radians <- deg2rad(copdat$degrees) copdat$sin_x <- sin(copdat$radians) ggplot(copdat,aes(x=degrees,y=sin_x))+ geom_point(size = 2)+ geom_line()+ theme_cowplot()+xlab("x")+ ylab("sin(x)")+ scale_x_continuous(breaks=seq(0,180,30))+ ggtitle("sin(x) vs x\nx is in degrees") My trig students would prefer a curved line plot similar to what can be plotted with Excel smooth line functionality. I wanted to provide a relatively simple R script using ggplot to do this without having to resort to fitting a sine curve to these points. Some guidance would be appreciated. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fstat.ethz.ch%2Fmailman%2Flistinfo%2Fr-help&data=04%7C01%7CJSorkin%40som.umaryland.edu%7C1ffa4922f2ba41588da908d94ed2a982%7C717009a620de461a88940312a395cac9%7C0%7C0%7C637627488997910453%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=90qApIoS6rwqkQuKPzy3x2AUPntuJ2W%2FtJgPGfiddEI%3D&reserved=0 PLEASE do read the posting guide https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.r-project.org%2Fposting-guide.html&data=04%7C01%7CJSorkin%40som.umaryland.edu%7C1ffa4922f2ba41588da908d94ed2a982%7C717009a620de461a88940312a395cac9%7C0%7C0%7C637627488997910453%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=s9YIcjlEo4MvI6hcX%2FkV4gwJJKa172QrPEnHsqTiRa8%3D&reserved=0 and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.