Not sure what you mean by a horizontal line, Greg. I change one of my plots to add a path between corresponding values of the sequence variable but obviously those lines are mostly not horizontal. Look at geom_path and similar geoms like geom_line to connect endpoints grouped whatever way you specify.
ggplot(data=myDat,aes(x=date, y=time, label=time)) + geom_point(aes(color=seq)) + geom_path(aes(group=seq)) + geom_text(aes(color=seq)) As this is a help group, I think I am done. From: Gregory Coats <mailto:gregco...@me.com> Sent: Tuesday, March 16, 2021 8:26 PM To: Avi Gross <mailto:avigr...@verizon.net> Cc: mailto:r-help@r-project.org Subject: Re: [R] How to plot dates Thank you very much. In addition to what your did, for event 1, I would like to draw a horizontal line connecting from day 1 to day 2 to day 3 to day 4. Then, for event 2, I would like to draw a horizontal line connecting from day 1 to day 2 to day 3 to day 4. Similarly for events 3, and 4. Is that convenient to do? Greg Coats On Mar 16, 2021, at 8:01 PM, Avi Gross via R-help <mailto:r-help@r-project.org> wrote: Here is an example that worked for me doing roughly what I mentioned but note my names changed. It makes two plots. library (ggplot2) myDat <- read.table(text = "datetimeraw 2021-03-12 05:16:46 2021-03-12 09:17:02 2021-03-12 13:31:43 2021-03-12 22:00:32 2021-03-13 09:21:43 2021-03-13 13:51:12 2021-03-13 18:03:13 2021-03-13 22:20:28 2021-03-14 08:59:03 2021-03-14 13:15:56 2021-03-14 17:25:23 2021-03-14 21:36:26", sep = ",", header = TRUE) head(myDat) myDat$datetime <- as.POSIXct(myDat$datetimeraw, tz = "", format ="%Y-%M-%d %H:%M:%OS") myDat$date <- factor(format(myDat$datetime, "%Y-%m-%d")) myDat$time <- format(myDat$datetime, "%H:%M") myDat$seq <- factor(rep(1:4, 3)) # just dots ggplot(data=myDat,aes(x=date, y=time)) + geom_point(aes(color=seq)) # Also text ggplot(data=myDat,aes(x=date, y=time, label=time)) + geom_point(aes(color=seq)) + geom_text(aes(color=seq)) From: Gregory Coats <gregco...@me.com> Sent: Tuesday, March 16, 2021 8:26 PM To: Avi Gross <avigr...@verizon.net> Cc: r-help@r-project.org Subject: Re: [R] How to plot dates Thank you very much. In addition to what your did, for event 1, I would like to draw a horizontal line connecting from day 1 to day 2 to day 3 to day 4. Then, for event 2, I would like to draw a horizontal line connecting from day 1 to day 2 to day 3 to day 4. Similarly for events 3, and 4. Is that convenient to do? Greg Coats On Mar 16, 2021, at 8:01 PM, Avi Gross via R-help <mailto:r-help@r-project.org> wrote: Here is an example that worked for me doing roughly what I mentioned but note my names changed. It makes two plots. library (ggplot2) myDat <- read.table(text = "datetimeraw 2021-03-12 05:16:46 2021-03-12 09:17:02 2021-03-12 13:31:43 2021-03-12 22:00:32 2021-03-13 09:21:43 2021-03-13 13:51:12 2021-03-13 18:03:13 2021-03-13 22:20:28 2021-03-14 08:59:03 2021-03-14 13:15:56 2021-03-14 17:25:23 2021-03-14 21:36:26", sep = ",", header = TRUE) head(myDat) myDat$datetime <- as.POSIXct(myDat$datetimeraw, tz = "", format ="%Y-%M-%d %H:%M:%OS") myDat$date <- factor(format(myDat$datetime, "%Y-%m-%d")) myDat$time <- format(myDat$datetime, "%H:%M") myDat$seq <- factor(rep(1:4, 3)) # just dots ggplot(data=myDat,aes(x=date, y=time)) + geom_point(aes(color=seq)) # Also text ggplot(data=myDat,aes(x=date, y=time, label=time)) + geom_point(aes(color=seq)) + geom_text(aes(color=seq)) ______________________________________________ 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.
