how to wrap a long line in R scripts?

[Chao]

The guide of R Code style recommends to write script with a maximal
length of 80 characters?

how to break a line longer than 80 characters like
filename_name <- ("/blaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/"/
blaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/data.csv")

I did not find any answer while googling.


Thank you!

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[Jonathan P Daily]

a <- "reaaaaaaaaaaaaaaaallllllllyyyyy looooo
        ooooooooong chaaaaaaaaarrr"

Although the indentation is just personal preference.
--------------------------------------
Jonathan P. Daily
Technician - USGS Leetown Science Center
11649 Leetown Road
Kearneysville WV, 25430
[phone]
"Is the room still a room when its empty? Does the room,
 the thing itself have purpose? Or do we, what's the word... imbue it."
     - Jubal Early, Firefly

______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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[Jonathan P Daily]

To elaborate, expressions and any explicit enclosures can also be simply
split between lines. Often, this is done without space issues just for
clarity.

EX:

vec <- c(LETTERS[1:5], 1:5,
        letters[1:5])

plot(X, Y, main = "A plot", xlab = "X Values", ylab = "Response",
        lty = 1,
        pch = 5,
        cex = .75)

num <- ((a1 + a2 + a3)/b1 +
        (a4 + a5 + a6)/b2) /
        b3
--------------------------------------
Jonathan P. Daily
Technician - USGS Leetown Science Center
11649 Leetown Road
Kearneysville WV, 25430
[phone]
"Is the room still a room when its empty? Does the room,
 the thing itself have purpose? Or do we, what's the word... imbue it."
     - Jubal Early, Firefly

[hidden email] wrote on 01/10/2011 09:04:23 AM:

> [image removed]
>
> Re: [R] how to wrap a long line in R scripts?
>
> Jonathan P Daily
>
> to:
>
> Tutu2008
>
> 01/10/2011 09:09 AM
>
> Sent by:
>
> [hidden email]
>
> Cc:
>
> r-help, r-help-bounces
>
> a <- "reaaaaaaaaaaaaaaaallllllllyyyyy looooo
>         ooooooooong chaaaaaaaaarrr"
>
> Although the indentation is just personal preference.
> --------------------------------------
> Jonathan P. Daily
> Technician - USGS Leetown Science Center
> 11649 Leetown Road
> Kearneysville WV, 25430
> [phone]
> "Is the room still a room when its empty? Does the room,
>  the thing itself have purpose? Or do we, what's the word... imbue it."
>      - Jubal Early, Firefly
>
> ______________________________________________
> [hidden email] mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide

http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

______________________________________________
[hidden email] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

[Peter Ehlers]

On 2011-01-10 02:36, Tutu2008 wrote:
> The guide of R Code style recommends to write script with a maximal
> length of 80 characters?
>
> how to break a line longer than 80 characters like
> filename_name<- ("/blaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/"/
> blaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/data.csv")
>

I would use file.path() on the pieces that go into
your filename.

Peter Ehlers

> I did not find any answer while googling.
>
>
> Thank you!
>

______________________________________________
[hidden email] mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

[Keith Jewell]

"Jonathan P Daily" <[hidden email]> wrote in message
news:[hidden email]...

>a <- "reaaaaaaaaaaaaaaaallllllllyyyyy looooo
>        ooooooooong chaaaaaaaaarrr"
>
> Although the indentation is just personal preference.
> --------------------------------------
> Jonathan P. Daily
> Technician - USGS Leetown Science Center
> 11649 Leetown Road
> Kearneysville WV, 25430
> [phone]
> "Is the room still a room when its empty? Does the room,
> the thing itself have purpose? Or do we, what's the word... imbue it."
>     - Jubal Early, Firefly
>

Did you test that? Printing a to see the result so the commands are
-------------
a <- "reaaaaaaaaaaaaaaaallllllllyyyyy looooo
        ooooooooong chaaaaaaaaarrr"
a
----------------------------
Pasting directly into Rgui
> a <- "reaaaaaaaaaaaaaaaallllllllyyyyy looooo
+         ooooooooong chaaaaaaaaarrr"
> a
[1] "reaaaaaaaaaaaaaaaallllllllyyyyy looooo\n        ooooooooong
chaaaaaaaaarrr"

Saving to file 'test.r' and sourcing
> source("C:\\Documents and Settings\\jewell\\Desktop\\test.r", echo=TRUE)
> a <- "reaaaaaaaaaaaaaaaallllllllyyyyy looooo
+         ooooooooong chaaaaaaaaarrr"
> a
[1] "reaaaaaaaaaaaaaaaallllllllyyyyy looooo\n        ooooooooong
chaaaaaaaaarrr"

I don't think this is what the OP wanted.
I guess he wants "reaaaaaaaaaaaaaaaallllllllyyyyy loooooooooooooong
chaaaaaaaaarrr"

I don't know the answer (other than, as suggested by Peter Ehlers") to build
it bit by bit.

KJ

______________________________________________
[hidden email] mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

[Jonathan P Daily]

Oops! Good catch. I have been coding in python and R recently and now I'm
mixing conventions ... R's automatic line wrapping and Python's
auto-catenation given a line wrap (via '\').

A better solution would be:

a <- paste("reaaaaaaaaaaaaaaaallllllllyyyyy looooo",
        "ooooooooong chaaaaaaaaarrr", sep = "")
print(a)

--------------------------------------
Jonathan P. Daily
Technician - USGS Leetown Science Center
11649 Leetown Road
Kearneysville WV, 25430
[phone]
"Is the room still a room when its empty? Does the room,
 the thing itself have purpose? Or do we, what's the word... imbue it."
     - Jubal Early, Firefly

[hidden email] wrote on 01/10/2011 09:51:28 AM:

> [image removed]
>
> Re: [R] how to wrap a long line in R scripts?
>
> Keith Jewell
>
> to:
>
> r-help
>
> 01/10/2011 09:54 AM
>
> Sent by:
>
> [hidden email]
>
>
> "Jonathan P Daily" <[hidden email]> wrote in message
>

news:[hidden email]...

> >a <- "reaaaaaaaaaaaaaaaallllllllyyyyy looooo
> >        ooooooooong chaaaaaaaaarrr"
> >
> > Although the indentation is just personal preference.
> > --------------------------------------
> > Jonathan P. Daily
> > Technician - USGS Leetown Science Center
> > 11649 Leetown Road
> > Kearneysville WV, 25430
> > [phone]
> > "Is the room still a room when its empty? Does the room,
> > the thing itself have purpose? Or do we, what's the word... imbue it."
> >     - Jubal Early, Firefly
> >
>
> Did you test that? Printing a to see the result so the commands are
> -------------
> a <- "reaaaaaaaaaaaaaaaallllllllyyyyy looooo
>         ooooooooong chaaaaaaaaarrr"
> a
> ----------------------------
> Pasting directly into Rgui
> > a <- "reaaaaaaaaaaaaaaaallllllllyyyyy looooo
> +         ooooooooong chaaaaaaaaarrr"
> > a
> [1] "reaaaaaaaaaaaaaaaallllllllyyyyy looooo\n        ooooooooong
> chaaaaaaaaarrr"
>
> Saving to file 'test.r' and sourcing
> > source("C:\\Documents and Settings\\jewell\\Desktop\\test.r",

echo=TRUE)

> > a <- "reaaaaaaaaaaaaaaaallllllllyyyyy looooo
> +         ooooooooong chaaaaaaaaarrr"
> > a
> [1] "reaaaaaaaaaaaaaaaallllllllyyyyy looooo\n        ooooooooong
> chaaaaaaaaarrr"
>
> I don't think this is what the OP wanted.
> I guess he wants "reaaaaaaaaaaaaaaaallllllllyyyyy loooooooooooooong
> chaaaaaaaaarrr"
>
> I don't know the answer (other than, as suggested by Peter Ehlers") to

build
> it bit by bit.
>
> KJ
>
> ______________________________________________
> [hidden email] mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

______________________________________________
[hidden email] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.