Às 00:53 de 27/11/2024, Sorkin, John escreveu:
I am reading a string that has the following form:
"2020-08-26_05:15:01"
I want to convert the string to a date-time variable. I tired:
x <- "2007-02-01_10:10:30"
x <- as.POSIXct(x,tz=Sys.timezone())
x
but this did not work; the time portion was ignored. I suspect the problem is
the _ between the date and time, but I don't know how to account for this
character in the string.
I hope someone can tell me how to read the string as a date time constant.
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
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Hello,
Pass an explicit format string with the underscore between the date and
time parts.
x <- "2007-02-01_10:10:30"
as.POSIXct(x, format = "%Y-%m-%d_%H:%M:%S", tz = Sys.timezone())
Hope this helps,
Rui Barradas
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