With this as an example, no wonder you don't understand it. This is horrible.
`with` is very much like the `subset` function... it alleviates the need to
re-type the containing object name repeatedly.
data4xsort <- temp[ with( temp, order( patid, time ) ), ]
is the same as
data4xsort <- temp[
William
Yes that works a little better as I don’t have to create notional variables.
Thank you
Jeff
From: William Dunlap
Sent: Monday, August 12, 2019 6:46 PM
To: Jeff Reichman
Cc: r-help@r-project.org
Subject: Re: [R] separate and gather functions
This one uses only core R
Bert,
Thank you for your reply (and the many other questions to the list that you
answer).
I understand how order works when ordering based on a single column. What I
don’t understand is how the code I included with my email works. I believe my
problem is a lack of understanding of what with
On 8/12/19 7:20 PM, Sorkin, John wrote:
I want to sort a DF, temp, on two columns, patid and time. I have searched the
internet and found code that I was able to modify to get my data sorted.
Unfortunately I don't understand how the code works. I would appreciate it if
someone could explain
https://stackoverflow.com/questions/2315601/understanding-the-order-function
Do a web search on "How does order() work R" or similar for more.
I can't explain with() any better than the docs: saying that it evaluates
the expression argument in the data argument environment -- a data frame
for
I want to sort a DF, temp, on two columns, patid and time. I have searched the
internet and found code that I was able to modify to get my data sorted.
Unfortunately I don't understand how the code works. I would appreciate it if
someone could explain to me how the code works. Among other
This one uses only core R functions. Does that count toward "elegance"?
> # your data, I assume, in a form one can copy and paste into R
> d <- data.frame(stringsAsFactors = FALSE,
Col1 = c("Agency A", "Agency B", "Agency C"),
Col2 = c("Function1, Function2, Function3, Function4",
R-Help Forum
I have a data set from which I have extracted two columns Column 1 is a
listing of Federal agencies and Column 2 lists functions like this
Col1 Col2
Agency A Function1, Function2, Function3, Function4
Agency B Function2,
Hi all,I would like to thank every one who has responded to my question. I
have received valuable help.Linus, the function that I gave here is just a toy
function. I think that is possible even to find an analytical solution. I chose
that just to include many constant parameters. I wanted to
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