I have a matrix, KD6, and I�m trying to get a correlation matrix from it. When
I enter cor(KD6), I get the message �Error in cor(KD6) : 'x' must be numeric�.
Here are some early lines from KD6:
Flow E..coliTNSRP TPTSS
1 38.82,4201.65300 0.0270 0.0630 66.
With help from several people, I used file.choose() to get my file name, and
read.csv() to read in the file as KurtzData. Then when I print KurtzData, the
last several lines look like this:
39 5/31/22 16.0 3411.75525 0.0201 0.0214 7.00
40 6/28/22 2:00 PM 0.0
I know I should save it as a .csv file, which I have done.
I�m told I should use the read_excel() function from the readxl package.
My question is, how do I express the location of the file. The file is named
KurtzData.csv.
Its location in my Mac files is DFPfiles/ae/FriendsMonroe/KurtzData.csv
H
go out as plain text. Is that true for
this response, or is it in HTML?
From: Rui Barradas
Date: Tuesday, September 20, 2022 at 4:52 AM
To: Jim Lemon , Parkhurst, David ,
r-help mailing list
Subject: Re: [R] Need help plotting
Hello,
Now with data, here are base R and ggplot2 plots.
Thank you.
From: Rui Barradas
Date: Monday, September 19, 2022 at 1:28 PM
To: Parkhurst, David , R-help@r-project.org
Subject: Re: [R] Converting time format
Hello,
I will run the examples below with the following data:
x <- c("12:00", "12:15", "12:30",
Thank you. I�ll see what I can do with that.
From: Rui Barradas
Date: Monday, September 19, 2022 at 1:28 PM
To: Parkhurst, David , r-help@r-project.org
Subject: Re: [R] Converting time format
Hello,
I will run the examples below with the following data:
x <- c("12:00", &q
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 On Behalf Of Parkhurst, David
> Sent: Sunday, September 18, 2
I have a dataframe obtained using read.csv from an excel file. Its first
column is times, running from 18:00 to 19:30. If I want to plot other columns
against time, do I need to convert those somehow, and how would I do that?
If I run plot(b$time,b$myvar) I get a decent plot, but a friend sugg
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
q
mean by
�value to delete�? Could that just be a row number? I was wanting to delete
something like the 18th row in the dataframe?
From: CALUM POLWART
Date: Sunday, September 18, 2022 at 7:25 AM
To: Parkhurst, David
Cc: R-help@r-project.org
Subject: Re: [R] Remove line from data file
From the
I’ve been retired since ‘06 and have forgotten most of R. Now I have a use for
it. I’ve created a data file and need to delete one row from it. How do I do
that?
DFP (iPad)
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https:/
I�m just starting to learn and use R Studio in my Mac. Now I find if I type
lines in what I think is called the source pane, and use Save as from the menu,
nothing gets saved. That�s true if I add the extension .R or the extension
.txt. If I try reopen the file in an empty source pane, it�s e
Thank you.
From: Richard M. Heiberger
Date: Wednesday, February 17, 2021 at 4:21 PM
To: Parkhurst, David , r-help@r-project.org
Subject: Re: [External] [R] Concatenation?
> paste(c("A","B","C"), c(1,2,3), sep="")
[1] "A1&qu
If I have a vector of site abbreviations and a vector of depths in those water
bodies, is there a simple way in R to combine them to make a third vector?
Examples:
sitedepth desired
MU 0 MU0
MU 1 MU1
MU 2 MU2
MC 0
Thanks. What editor do you use? I'm working in a Mac, if that makes a
difference.
From: Gerrit Draisma
Date: Tuesday, February 9, 2021 at 5:10 PM
To: Parkhurst, David F.
Cc: r-help@r-project.org
Subject: Re: [R] Need help using lattice
Ha David,
I do not know.
It must be that your Apr
labels=AprToDec, ordered=TRUE))
I get + signs in front of monames and labels, again as expected, but then it
gives me another + sign. And if I try to add another ), it keeps giving me +
signs. What is happening here?
From: Gerrit Draisma
Date: Tuesday, February 9, 2021 at 6:14 AM
To: Park
Thank you.
From: Gerrit Draisma
Date: Tuesday, February 9, 2021 at 6:14 AM
To: Parkhurst, David F.
Cc: r-help@r-project.org
Subject: Re: [R] Need help using lattice
Ha David,
Thanks for your reply.
For your last question, you have to change month into an ordered factor
variable:
library
I have a dataframe comprising a vector of E. coli concentrations, a vector of
months when the samples were taken, and a vector of sampled sites. I�d like to
produce a lattice with sites along the horizontal axis, and months on the
vertical. Each site-month box would then contain concentrations
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