[R] Need help plotting

[Parkhurst, David]

Thank you.

DFP (iPad)

> On Sep 19, 2022, at 8:15 AM, Ebert,Timothy Aaron <tebert using ufl.edu> wrote:
> 
> My version of this email has a bunch of ? that I do not know how to interpret. Emails to this group need to be in plain text. HTML content is deleted or converted and impossible or at least difficult to interpret.
> 
> Do not share confidential data. Please change some numbers or variable names and share that.
> If this helps:
> 1) Make sure your time variable is a datetime object. 
> 2) At least in ggplot it should now behave as expected.
> ggplot(df, aes(y=NO2, x=datetime)) + geom_point()
> 
> That will be a start as a scatterplot, but the graph can be customized or changed if scatterplot was not desired.
> 
> Tim
> 
> -----Original Message-----
> From: R-help <r-help-bounces using r-project.org> On Behalf Of Parkhurst, David
> Sent: Sunday, September 18, 2022 4:27 PM
> To: r-help using r-project.org
> Subject: [R] Need help plotting
> 
> [External Email]
> 
> I�ve been retired since �06 and have forgotten most of R.  Now I have a use for it, with some data from Bloomington�s Environmental Commission.
> 
> I have a dataframe (obtained from read.csv) that contains numerous columns, including time (in Excel�s 18:00 format), and DNO2, and MNO2 from two air quality instruments.
> 
> I�d like a plot of both the NO2 measurements against time.  I be happy to use either ordinary R plots or ggplot2 ones, if that would be a better way.  I�d much appreciate help.
> 
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