I do not see any posting on this topic from Jeff Newmiller.
I seek a way to “teach” R that "2021-07-25” represents a Year, Month, and Day.
Greg Coats
> Fuel <- c(50.45, 61.48, 59.07, 55.40, 30.63, 41.35, 32.81, 49.86, 62.99,
> 89.37)
> plot (Fuel)
> Dates <- c("2021-07-25", "2021-08-27", "2021-09
# Column 1 is the Year
# Column 2 is the Month
# Column 3 is the Day
# Column 4 is the Fuel
Fuel <- c(50.45, 61.48, 59.07, 55.40, 30.63, 41.35, 32.81, 49.86, 62.99, 89.37)
plot (Fuel)
2021 7 25 50.45
2021 8 27 61.48
2021 9 26 59.07
2021 11 4 55.40
2021 11 22 30.63
2021 11 26
It appears that
install.libraries(“hms”)
is unsuccessful, but that
install.packages(“hms”)
is successful.
install.packages("lubridate")
downloaded 1.5 MB
install.packages("hms")
downloaded 95 KB
install.packages("data.table")
downloaded 2.2 MB
Greg
> On Mar 17
On my MacBook, I do not have, and do not know how to install, library(hms).
Greg Coats
> library(hms)
Error in library(hms) : there is no package called ‘hms’
> Install.libraries(“hms”)
Error: unexpected input in "Install.libraries(“"
>
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__
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 th
Dan, Thank you for this guidance.
Unfortunately, I do not have the library lubridate, and I do not at this moment
know where to go to get this library for an Apple MacBook.
> library(lubridate)
Error in library(lubridate) : there is no package called ‘lubridate’
Greg Coats
Reston, Virginia USA
Thank you. Let me redefine the situation.
Each time an event starts, I record the date and time.
Each day there are 4 new events. Time is the only variable.
I would like to graphically show how the time for events 1, 2, 3, and 4 for the
current day compare to the times for events 1, 2, 3, and 4 fo
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]], ...)
I want to plot the date and time of the event, as reflected in data.
2021-03-11 10:00:00
Greg Coats
> On Mar 16, 2021, at 2:23 PM, Jeff Newmiller wrote:
>
> You don't seem to have a Y_Var in your data. What is it that you want to plot?
>
> On March 16, 2021 9:21:05 AM PDT,
time
> 2021-03-11 10:00:00
> 2021-03-11 14:17:00
> 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",
> sep = ",", header = TRUE)
>
> myDat$datetime <- as.POSIXct(myDat$datetime, tz = &quo
My computer is an Apple MacBook. I do not have POSIX.
The command
myDat$datetime <- as.POSIXct(myDat$datetime, tz = "", format = "%Y-%M-%d
%H:%M:%OS")
yields the error
Error in `$<-.data.frame`(`*tmp*`, datetime, value = numeric(0)) :
replacement has 0 rows, data has 13
Please advise, How to p
I store in a text file the dates and times that an event occurred.
How do I direct R to import these text characters, and store the year, month,
day, hour, minute, and second as a date?
How do I then plot this series of dates?
2021-03-11 10:00:00
2021-03-11 14:17:00
2021-03-12 05:16:46
2021-03-12
I reported this behavior on Thu Jan 7, 2021.
You did nothing wrong.
No fix has been issued.
This evening, I upgraded from R 4.0.2 to the Duke University R 4.0.3 for Apple
Mac. Now all I can get from R 4.0.3 is this red error message (that means
nothing to me). Is there an easy fix? Greg
2021-01
I upgraded from R 4.0.2 to R 4.0.3 for Apple Mac at Duke University. Now, the
only output I get from R 4.0.3 is an error message. Greg Coats
2021-01-07 22:58:42.997 R[8311:37566] Warning: Expected min height of view:
() to be less than or equal to 30
but got a height of 32.00. This error wil
After calling plot, I draw a horizontal line representing the median with aline.
abline (h=median(walk_seconds), lty=1, lwd=2.0, col="firebrick4")
Then, I want to label that line as the median and do so by calling mtext.
mtext (side=4, "median", col="firebrick4", adj=“0.50”)
The dilemma is I do no
I need to be able to draw and label a vertical line, representing the date of
some arbitrary event. The date of the first entry is 2013-11-29. How would I
draw, and label a red vertical line at 2019-04-06? Greg
gcdf<-read.table(text="2013-11-29 19.175
2014-01-20 10.072
2014-02-12 10.241
2014-03-
I would like to be able to draw and label a vertical line, representing the
date of some arbitrary event. The date of the first non-zero entry is
2013-11-29. How would I draw and label a red vertical line at 2019-04-06? Greg
gcdf<-read.table(text="2013-11-29 00.000
2013-12-29 19.175
2014-01-20 1
I added a zero initial entry to the data set. Greg
gcdf<-read.table(text="2013-11-29 00.000
2013-12-29 19.175
2014-01-20 10.072
2014-02-12 10.241
2014-03-02 05.916
> On Dec 16, 2020, at 12:32 PM, Gregory Coats via R-help
> wrote:
>
> Jim, Thank you!
> The data set be
1,sep="-"),"%Y-%m-%d")
> plot(gcdf$date, gcdf$gallons, main="2014 Toyota 4Runner", xlab="Date",
> ylab="Gallons",type="l",col="blue",yaxt="n")
> abline(h=seq(4,20,by=2),lty=4)
> abline(v=grid_dates,lty=4)
>
Hi Gregory,
> Here's a start:
>
> gcdf<-read.table(text="2020-01-05 15.973
> 2020-02-15 18.832
> 2020-03-10 17.392
> 2020-05-04 14.774
> 2020-06-21 19.248
> 2020-08-01 14.913
> 2020-08-27 15.226
> 2020-09-28 14.338
> 2020-11-09 18.777
> 2020-12-11 19
Starting with year-month-day, for the variable gallons, I can easily plot the
variable gallons, while disregarding the date.
gallons <- c (15.973, 18.832, 17.392, 14.774, 19.248, 14.913, 15.226, 14.338,
18.777, 19.652)
plot (gallons, type="l", xlab="X label", ylab="Y label", col="blue”)
How do
Today, I downloaded, and installed the June 6, 2020 version of R, from the CRAN
official site at Carnegie Mellon University. Unfortunately, while the CMU
compiled Mac OS X R application provides access to base R stat functions, like
mean, it does not provide me with access to any of R’s more adv
I do not see any difference between the x versus y plot drawn in blue, and the
y only plot drawn in red. Is the correct?
Greg
y_duration <- c (301.59050, 387.35700, 365.64366, 317.26150, 321.71883,
342.44950, 318.95350, 322.33233, 330.60333, 428.99516, 297.82066, 258.23166,
282.01816, 280.0
Since the horizontal axis side=1 is year-month-day, how do I issue an abline
command to draw dashed vertical lines, as a background grid, within the graph’s
border? Similar to the abline command I call below, in blue, for dashed
horizontal lines, as a background grid.
Greg
y_duration <- c (301.
Thanks. Regarding
axis(1,at=x_mmdd,labels=format(x_mmdd,"%Y-%m-%d"))
How do I get the text for -MM-DD to be drawn vertically, instead of
horizontally?
Greg
> On May 6, 2018, at 11:54 PM, Jim Lemon wrote:
>
> axis(1,at=x_mmdd,labels=format(x_mmdd,"%Y-%m-%d"))
[[al
Jim,
Thank you very much!
How do I use the axis command for side=1 to label the x horizontal axis, in the
format="%Y-%m-%d” style?
Greg
y_duration <- c (301.59050, 387.35700, 365.64366, 317.26150, 321.71883,
342.44950, 318.95350, 322.33233, 330.60333, 428.99516, 297.82066,
258.23166)
Jim, Thanks for responding!
I am using the official R 3.5.0 for Mac OS X.
This apparently does not include library (plotrix)
library(plotrix)
Error in library(plotrix) : there is no package called ‘plotrix’
Greg
> On May 5, 2018, at 6:50 PM, Jim Lemon wrote:
>
> Hi Greg,
> What you are getting
Jim,
That you very much!
How do I instruct staxlab to label once every n days, rather than labeling
every day?
Greg
> On May 5, 2018, at 6:50 PM, Jim Lemon wrote:
>
> staxlab(1,at=x_mmdd,labels=format(x_mmdd,"%Y-%m-%d"))
[[alternative HTML version deleted]]
__
I am using R 3.5.0 for Mac OS X.
Issuing these two commands yields the expected plot.
y_duration <- c (301.59050, 387.35700, 365.64366, 317.26150, 321.71883,
342.44950, 318.95350, 322.33233, 330.60333, 428.99516, 297.82066)
plot (y_duration, type="l”)
Adding Year-Month-Day values for th
All of the R commands that I want to issue are in a text file that concludes
with the R command quit (save = “yes”), and is called R_commands.txt. I can
start R, and then manually issue
source (“R_commands.txt”).
But I would prefer to issue, from the bash command line, a one line command,
direct
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