How to plot dates
Dear Greg, Coordinate plots typically have a horizontal (x) and vertical (y) axis. The command ggplot(myDat, aes(x=datetime, y = datetime)) + geom_point() works, but I doubt that it produces what you want. You have only one variable in your data set -- datetime -- so it's not obvious what you want to do. If you can't clearly describe the structure of the plot you intend to draw, it's doubtful that I or anyone else can help you. Best, John John Fox, Professor Emeritus McMaster University Hamilton, Ontario, Canada web: https://socialsciences.mcmaster.ca/jfox/
On 2021-03-16 2:56 p.m., Gregory Coats via R-help wrote:
I need a plot that shows the date and time that each event started. This ggplot command was publicly given to me via this R Help Mailing LIst. But the result of issuing the ggplot command is an Error in FUN message. ggplot(myDat, aes(x=datetime, y = Y_Var)) + geom_point() Error in FUN(X[[i]], ...) : object 'Y_Var' not found Greg Coats
On Mar 16, 2021, at 2:18 PM, John Fox <jfox at mcmaster.ca> wrote: There is no variable named Y_Var in your data set. I suspect that it's intended to be a generic specification in the recipe you were apparently given. In fact, there appears to be only one variable in myDat and that's datetime. What is it that you're trying to do?
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