Dear All:
I would like to create a subset data set *with only* all Ford and all
Toyota cars from the Auto data set in ISLR R Package. Thank you very much
in advance.
Please use the following code to see how is the data look like.
install.packages("ISLR")
library(ISLR)
data(Auto)
head(Auto)
with many thanks
abou
______________________
*AbouEl-Makarim Aboueissa, PhD*
*Professor of Statistics*
*Department of Mathematics and Statistics*
*University of Southern Maine*
Auto Data in the ISLR Package
8 messages · Bert Gunter, Peter Dalgaard, AbouEl-Makarim Aboueissa +1 more
I did not care to load the packages -- small reproducible examples are preferable, as the posting guide suggests. But, if I have understood correctly: See, e.g. ?subset Alternatively, you can read up on indexing data frames in any good basic R tutorial. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sat, Dec 16, 2017 at 11:44 AM, AbouEl-Makarim Aboueissa <
abouelmakarim1962 at gmail.com> wrote:
Dear All:
I would like to create a subset data set *with only* all Ford and all
Toyota cars from the Auto data set in ISLR R Package. Thank you very much
in advance.
Please use the following code to see how is the data look like.
install.packages("ISLR")
library(ISLR)
data(Auto)
head(Auto)
with many thanks
abou
______________________
*AbouEl-Makarim Aboueissa, PhD*
*Professor of Statistics*
*Department of Mathematics and Statistics*
*University of Southern Maine*
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
myAuto <- Auto[ grep("ford|toyota",Auto$name),]
On Sat, Dec 16, 2017 at 10:28 PM, Bert Gunter <bgunter.4567 at gmail.com>
wrote:
I did not care to load the packages -- small reproducible examples are preferable, as the posting guide suggests. But, if I have understood correctly: See, e.g. ?subset Alternatively, you can read up on indexing data frames in any good basic R tutorial. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sat, Dec 16, 2017 at 11:44 AM, AbouEl-Makarim Aboueissa < abouelmakarim1962 at gmail.com> wrote:
Dear All: I would like to create a subset data set *with only* all Ford and all Toyota cars from the Auto data set in ISLR R Package. Thank you very
much
in advance.
Please use the following code to see how is the data look like.
install.packages("ISLR")
library(ISLR)
data(Auto)
head(Auto)
with many thanks
abou
______________________
*AbouEl-Makarim Aboueissa, PhD*
*Professor of Statistics*
*Department of Mathematics and Statistics*
*University of Southern Maine*
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/
posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/ posting-guide.html and provide commented, minimal, self-contained, reproducible code.
That probably works in this case, but it would cause grief if another car make had "ford" somewhere inside its name e.g. "bedford". Safer general practice is
Auto[Auto$name %in% c("ford", "toyota"),]
or similar using subset().
-pd
On 17 Dec 2017, at 09:10 , Eric Berger <ericjberger at gmail.com> wrote:
myAuto <- Auto[ grep("ford|toyota",Auto$name),]
On Sat, Dec 16, 2017 at 10:28 PM, Bert Gunter <bgunter.4567 at gmail.com>
wrote:
I did not care to load the packages -- small reproducible examples are preferable, as the posting guide suggests. But, if I have understood correctly: See, e.g. ?subset Alternatively, you can read up on indexing data frames in any good basic R tutorial. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sat, Dec 16, 2017 at 11:44 AM, AbouEl-Makarim Aboueissa < abouelmakarim1962 at gmail.com> wrote:
Dear All: I would like to create a subset data set *with only* all Ford and all Toyota cars from the Auto data set in ISLR R Package. Thank you very
much
in advance.
Please use the following code to see how is the data look like.
install.packages("ISLR")
library(ISLR)
data(Auto)
head(Auto)
with many thanks
abou
______________________
*AbouEl-Makarim Aboueissa, PhD*
*Professor of Statistics*
*Department of Mathematics and Statistics*
*University of Southern Maine*
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
[[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
[[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see 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 Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Office: A 4.23 Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com
Hi Peter, I looked at the Auto data frame and tested before I sent my reply. The entries in the "name" column are actually models, such as
head(Auto$name)
[1] chevrolet chevelle malibu buick skylark 320 plymouth satellite
amc rebel sst
[5] ford torino ford galaxie 500
What you are suggesting won't work. I agree with your "bedford" example as
a problem, but given the size of the result set in this case (~73 rows)
it's easy to eyeball the results and see if they're ok.
Regards,
Eric
On Sun, Dec 17, 2017 at 11:00 AM, peter dalgaard <pdalgd at gmail.com> wrote:
That probably works in this case, but it would cause grief if another car
make had "ford" somewhere inside its name e.g. "bedford". Safer general
practice is
Auto[Auto$name %in% c("ford", "toyota"),]
or similar using subset().
-pd
On 17 Dec 2017, at 09:10 , Eric Berger <ericjberger at gmail.com> wrote:
myAuto <- Auto[ grep("ford|toyota",Auto$name),]
On Sat, Dec 16, 2017 at 10:28 PM, Bert Gunter <bgunter.4567 at gmail.com>
wrote:
I did not care to load the packages -- small reproducible examples are preferable, as the posting guide suggests. But, if I have understood correctly: See, e.g. ?subset Alternatively, you can read up on indexing data frames in any good
basic R
tutorial. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along
and
sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sat, Dec 16, 2017 at 11:44 AM, AbouEl-Makarim Aboueissa < abouelmakarim1962 at gmail.com> wrote:
Dear All: I would like to create a subset data set *with only* all Ford and all Toyota cars from the Auto data set in ISLR R Package. Thank you very
much
in advance.
Please use the following code to see how is the data look like.
install.packages("ISLR")
library(ISLR)
data(Auto)
head(Auto)
with many thanks
abou
______________________
*AbouEl-Makarim Aboueissa, PhD*
*Professor of Statistics*
*Department of Mathematics and Statistics*
*University of Southern Maine*
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
[[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
[[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see 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 Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Office: A 4.23 Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com
Dear Eric: Thank you very much. It works nicely. *Just one more thing;* how to create a new variable (say, *Make*) with *Make = Ford* for the ford brand and *Make = T**oyota* for the toyota brand. Once again thank you all. abou ______________________ *AbouEl-Makarim Aboueissa, PhD* *Professor of Statistics* *Department of Mathematics and Statistics* *University of Southern Maine*
On Sun, Dec 17, 2017 at 3:10 AM, Eric Berger <ericjberger at gmail.com> wrote:
myAuto <- Auto[ grep("ford|toyota",Auto$name),]
On Sat, Dec 16, 2017 at 10:28 PM, Bert Gunter <bgunter.4567 at gmail.com>
wrote:
I did not care to load the packages -- small reproducible examples are preferable, as the posting guide suggests. But, if I have understood correctly: See, e.g. ?subset Alternatively, you can read up on indexing data frames in any good basic R tutorial. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sat, Dec 16, 2017 at 11:44 AM, AbouEl-Makarim Aboueissa < abouelmakarim1962 at gmail.com> wrote:
Dear All: I would like to create a subset data set *with only* all Ford and all Toyota cars from the Auto data set in ISLR R Package. Thank you very
much
in advance.
Please use the following code to see how is the data look like.
install.packages("ISLR")
library(ISLR)
data(Auto)
head(Auto)
with many thanks
abou
______________________
*AbouEl-Makarim Aboueissa, PhD*
*Professor of Statistics*
*Department of Mathematics and Statistics*
*University of Southern Maine*
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/
posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posti ng-guide.html and provide commented, minimal, self-contained, reproducible code.
myAuto <- Auto[ grep("ford|toyota",Auto$name),]
myAuto$Make <- NA
myAuto$Make[grep("ford",myAuto$name)] <- "Ford"
myAuto$Make[grep("toyota",myAuto$name)] <- "Toyota"
Regards,
Eric
On Sun, Dec 17, 2017 at 11:58 AM, AbouEl-Makarim Aboueissa <
abouelmakarim1962 at gmail.com> wrote:
Dear Eric: Thank you very much. It works nicely. *Just one more thing;* how to create a new variable (say, *Make*) with *Make = Ford* for the ford brand and *Make = T**oyota* for the toyota brand. Once again thank you all. abou
______________________
*AbouEl-Makarim Aboueissa, PhD*
*Professor of Statistics*
*Department of Mathematics and Statistics*
*University of Southern Maine*
On Sun, Dec 17, 2017 at 3:10 AM, Eric Berger <ericjberger at gmail.com>
wrote:
myAuto <- Auto[ grep("ford|toyota",Auto$name),]
On Sat, Dec 16, 2017 at 10:28 PM, Bert Gunter <bgunter.4567 at gmail.com>
wrote:
I did not care to load the packages -- small reproducible examples are
preferable, as the posting guide suggests.
But, if I have understood correctly:
See, e.g. ?subset
Alternatively, you can read up on indexing data frames in any good basic
R
tutorial.
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along
and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Sat, Dec 16, 2017 at 11:44 AM, AbouEl-Makarim Aboueissa <
abouelmakarim1962 at gmail.com> wrote:
Dear All:
I would like to create a subset data set *with only* all Ford and all
Toyota cars from the Auto data set in ISLR R Package. Thank you very
much
in advance.
Please use the following code to see how is the data look like.
install.packages("ISLR")
library(ISLR)
data(Auto)
head(Auto)
with many thanks
abou
______________________
*AbouEl-Makarim Aboueissa, PhD*
*Professor of Statistics*
*Department of Mathematics and Statistics*
*University of Southern Maine*
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posti
ng-guide.html
and provide commented, minimal, self-contained, reproducible code.
Dear Eric: Many Thanks abou ______________________ *AbouEl-Makarim Aboueissa, PhD* *Professor of Statistics* *Department of Mathematics and Statistics* *University of Southern Maine*
On Sun, Dec 17, 2017 at 5:25 AM, Eric Berger <ericjberger at gmail.com> wrote:
myAuto <- Auto[ grep("ford|toyota",Auto$name),]
myAuto$Make <- NA
myAuto$Make[grep("ford",myAuto$name)] <- "Ford"
myAuto$Make[grep("toyota",myAuto$name)] <- "Toyota"
Regards,
Eric
On Sun, Dec 17, 2017 at 11:58 AM, AbouEl-Makarim Aboueissa <
abouelmakarim1962 at gmail.com> wrote:
Dear Eric: Thank you very much. It works nicely. *Just one more thing;* how to create a new variable (say, *Make*) with *Make = Ford* for the ford brand and *Make = T**oyota* for the toyota brand. Once again thank you all. abou
______________________
*AbouEl-Makarim Aboueissa, PhD*
*Professor of Statistics*
*Department of Mathematics and Statistics*
*University of Southern Maine*
On Sun, Dec 17, 2017 at 3:10 AM, Eric Berger <ericjberger at gmail.com>
wrote:
myAuto <- Auto[ grep("ford|toyota",Auto$name),]
On Sat, Dec 16, 2017 at 10:28 PM, Bert Gunter <bgunter.4567 at gmail.com>
wrote:
I did not care to load the packages -- small reproducible examples are
preferable, as the posting guide suggests.
But, if I have understood correctly:
See, e.g. ?subset
Alternatively, you can read up on indexing data frames in any good
basic R
tutorial.
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along
and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Sat, Dec 16, 2017 at 11:44 AM, AbouEl-Makarim Aboueissa <
abouelmakarim1962 at gmail.com> wrote:
Dear All:
I would like to create a subset data set *with only* all Ford and all
Toyota cars from the Auto data set in ISLR R Package. Thank you
very much
in advance.
Please use the following code to see how is the data look like.
install.packages("ISLR")
library(ISLR)
data(Auto)
head(Auto)
with many thanks
abou
______________________
*AbouEl-Makarim Aboueissa, PhD*
*Professor of Statistics*
*Department of Mathematics and Statistics*
*University of Southern Maine*
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posti
ng-guide.html
and provide commented, minimal, self-contained, reproducible code.