I am trying to use ggplot to plot the data, and R code, below. The dates (jdate)
are printing as Mar 01, Mar 15, etc. I want to have the date printed as MMM DD
YYYY (or any other way that will show month, date, and year, e.g. mm/dd/yy). How
can I accomplish this?
yyy <- structure(list(
jdate = structure(c(19052, 19053, 19054, 19055,
19058, 19059, 19060, 19061, 19062, 19063, 19065, 19066,
19067,
19068, 19069, 19072, 19073, 19074, 19075, 19076, 19077,
19083,
19086, 19087, 19088, 19089, 19090, 19093, 19094, 19095),
class = "Date"),
Sum = c ( 1, 3, 9, 11, 13, 16, 18, 22, 26, 27, 30, 32, 35, 39, 41,
43, 48, 51, 56, 58, 59, 63, 73, 79, 81, 88, 91, 93, 96, 103)),
row.names = c(NA, 30L), class = "data.frame")
yyy
class(yyy$jdate)
ggplot(data=yyy[1:30,],aes(as.Date(jdate,format="%m-%d-%Y"),Sum))
+geom_point()
Thank you
John
John David Sorkin M.D., Ph.D.
Professor of Medicine, University of Maryland School of Medicine;
Associate Director for Biostatistics and Informatics, Baltimore VA Medical
Center Geriatrics Research, Education, and Clinical Center;?
PI?Biostatistics and Informatics Core, University of Maryland School of Medicine
Claude D. Pepper Older Americans Independence Center;
Senior Statistician University of Maryland Center for Vascular Research;
Division of Gerontology and Paliative Care,
10 North Greene Street
GRECC (BT/18/GR)
Baltimore, MD 21201-1524
Cell phone 443-418-5382
gg0 <- ggplot(data=yyy[1:30,],aes(as.Date(jdate,format="%m-%d-%Y"),Sum)) +geom_point() gg0 + scale_x_date(date_labels = "%m/%d/%Y") On 2024-05-09 7:58 p.m., Sorkin, John wrote:> I am trying to use ggplot to plot the data, and R code, below. The dates (jdate) are printing as Mar 01, Mar 15, etc. I want to have the date printed as MMM DD YYYY (or any other way that will show month, date, and year, e.g. mm/dd/yy). How can I accomplish this? > > yyy <- structure(list( > jdate = structure(c(19052, 19053, 19054, 19055, > 19058, 19059, 19060, 19061, 19062, 19063, 19065, 19066, 19067, > 19068, 19069, 19072, 19073, 19074, 19075, 19076, 19077, 19083, > 19086, 19087, 19088, 19089, 19090, 19093, 19094, 19095), class = "Date"), > Sum = c ( 1, 3, 9, 11, 13, 16, 18, 22, 26, 27, 30, 32, 35, 39, 41, > 43, 48, 51, 56, 58, 59, 63, 73, 79, 81, 88, 91, 93, 96, 103)), > row.names = c(NA, 30L), class = "data.frame") > yyy > class(yyy$jdate) > ggplot(data=yyy[1:30,],aes(as.Date(jdate,format="%m-%d-%Y"),Sum)) +geom_point() > > > Thank you > John > > > > John David Sorkin M.D., Ph.D. > Professor of Medicine, University of Maryland School of Medicine; > Associate Director for Biostatistics and Informatics, Baltimore VA Medical Center Geriatrics Research, Education, and Clinical Center; > PI?Biostatistics and Informatics Core, University of Maryland School of Medicine Claude D. Pepper Older Americans Independence Center; > Senior Statistician University of Maryland Center for Vascular Research; > > Division of Gerontology and Paliative Care, > 10 North Greene Street > GRECC (BT/18/GR) > Baltimore, MD 21201-1524 > Cell phone 443-418-5382 > > > > ______________________________________________ > R-help at 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.
?s 00:58 de 10/05/2024, Sorkin, John escreveu:> I am trying to use ggplot to plot the data, and R code, below. The dates (jdate) are printing as Mar 01, Mar 15, etc. I want to have the date printed as MMM DD YYYY (or any other way that will show month, date, and year, e.g. mm/dd/yy). How can I accomplish this? > > yyy <- structure(list( > jdate = structure(c(19052, 19053, 19054, 19055, > 19058, 19059, 19060, 19061, 19062, 19063, 19065, 19066, 19067, > 19068, 19069, 19072, 19073, 19074, 19075, 19076, 19077, 19083, > 19086, 19087, 19088, 19089, 19090, 19093, 19094, 19095), class = "Date"), > Sum = c ( 1, 3, 9, 11, 13, 16, 18, 22, 26, 27, 30, 32, 35, 39, 41, > 43, 48, 51, 56, 58, 59, 63, 73, 79, 81, 88, 91, 93, 96, 103)), > row.names = c(NA, 30L), class = "data.frame") > yyy > class(yyy$jdate) > ggplot(data=yyy[1:30,],aes(as.Date(jdate,format="%m-%d-%Y"),Sum)) +geom_point() > > > Thank you > John > > > > John David Sorkin M.D., Ph.D. > Professor of Medicine, University of Maryland School of Medicine; > Associate Director for Biostatistics and Informatics, Baltimore VA Medical Center Geriatrics Research, Education, and Clinical Center; > PI?Biostatistics and Informatics Core, University of Maryland School of Medicine Claude D. Pepper Older Americans Independence Center; > Senior Statistician University of Maryland Center for Vascular Research; > > Division of Gerontology and Paliative Care, > 10 North Greene Street > GRECC (BT/18/GR) > Baltimore, MD 21201-1524 > Cell phone 443-418-5382 > > > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.Hello, Since class(yyy$jdate) returns "Date", you have a real date and scale_x_date can handle the printed formats, there is no need for an extra as.Date in aes(). And get rid of the format = "%m-%d-%Y" argument. Let scale_x_date take care of formating the date as you want it displayed. Any of the two below is a valid date format. ggplot(data = yyy[1:30,], aes(jdate, Sum)) + geom_point() + # scale_x_date(date_labels = "%b %d, %Y") scale_x_date(date_labels = "%m/%d/%Y") Hope this helps, Rui Barradas -- Este e-mail foi analisado pelo software antiv?rus AVG para verificar a presen?a de v?rus. www.avg.com