Dear R Users, A bit of an elementary question, but somehow, I haven't been able to figure it out. I'd like to changes the column names of a data frame, so I am looking for something like col.names (as in row.names). Could someone please show me how to change the column names of a data frame ? Thanks, Tolga Generally, this communication is for informational purposes only and it is not intended as an offer or solicitation for the purchase or sale of any financial instrument or as an official confirmation of any transaction. In the event you are receiving the offering materials attached below related to your interest in hedge funds or private equity, this communication may be intended as an offer or solicitation for the purchase or sale of such fund(s). All market prices, data and other information are not warranted as to completeness or accuracy and are subject to change without notice. Any comments or statements made herein do not necessarily reflect those of JPMorgan Chase & Co., its subsidiaries and affiliates. This transmission may contain information that is privileged, confidential, legally privileged, and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. Although this transmission and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by JPMorgan Chase & Co., its subsidiaries and affiliates, as applicable, for any loss or damage arising in any way from its use. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. Please refer to http://www.jpmorgan.com/pages/disclosures for disclosures relating to UK legal entities. [[alternative HTML version deleted]]
See ?names On 6/6/08, tolga.i.uzuner@jpmorgan.com <tolga.i.uzuner@jpmorgan.com> wrote:> > Dear R Users, > > A bit of an elementary question, but somehow, I haven't been able to > figure it out. I'd like to changes the column names of a data frame, so I > am looking for something like col.names (as in row.names). Could someone > please show me how to change the column names of a data frame ? > > Thanks, > Tolga > > Generally, this communication is for informational purposes only > and it is not intended as an offer or solicitation for the purchase > or sale of any financial instrument or as an official confirmation > of any transaction. In the event you are receiving the offering > materials attached below related to your interest in hedge funds or > private equity, this communication may be intended as an offer or > solicitation for the purchase or sale of such fund(s). All market > prices, data and other information are not warranted as to > completeness or accuracy and are subject to change without notice. > Any comments or statements made herein do not necessarily reflect > those of JPMorgan Chase & Co., its subsidiaries and affiliates. > > This transmission may contain information that is privileged, > confidential, legally privileged, and/or exempt from disclosure > under applicable law. If you are not the intended recipient, you > are hereby notified that any disclosure, copying, distribution, or > use of the information contained herein (including any reliance > thereon) is STRICTLY PROHIBITED. Although this transmission and any > attachments are believed to be free of any virus or other defect > that might affect any computer system into which it is received and > opened, it is the responsibility of the recipient to ensure that it > is virus free and no responsibility is accepted by JPMorgan Chase & > Co., its subsidiaries and affiliates, as applicable, for any loss > or damage arising in any way from its use. If you received this > transmission in error, please immediately contact the sender and > destroy the material in its entirety, whether in electronic or hard > copy format. Thank you. > Please refer to http://www.jpmorgan.com/pages/disclosures for > disclosures relating to UK legal entities. > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org 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. >-- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]
On 6/6/2008 3:06 PM, tolga.i.uzuner at jpmorgan.com wrote:> Dear R Users, > > A bit of an elementary question, but somehow, I haven't been able to > figure it out. I'd like to changes the column names of a data frame, so I > am looking for something like col.names (as in row.names). Could someone > please show me how to change the column names of a data frame ? > > Thanks, > Tolgamy.iris <- iris names(my.iris) [1] "Sepal.Length" "Sepal.Width" "Petal.Length" "Petal.Width" "Species" names(my.iris) <- c("Length.Sepal", "Width.Sepal", "Length.Petal", "Width.Petal", "Species") names(my.iris) [1] "Length.Sepal" "Width.Sepal" "Length.Petal" "Width.Petal" "Species"> Generally, this communication is for informational purposes only > and it is not intended as an offer or solicitation for the purchase > or sale of any financial instrument or as an official confirmation > of any transaction. In the event you are receiving the offering > materials attached below related to your interest in hedge funds or > private equity, this communication may be intended as an offer or > solicitation for the purchase or sale of such fund(s). All market > prices, data and other information are not warranted as to > completeness or accuracy and are subject to change without notice. > Any comments or statements made herein do not necessarily reflect > those of JPMorgan Chase & Co., its subsidiaries and affiliates. > > This transmission may contain information that is privileged, > confidential, legally privileged, and/or exempt from disclosure > under applicable law. If you are not the intended recipient, you > are hereby notified that any disclosure, copying, distribution, or > use of the information contained herein (including any reliance > thereon) is STRICTLY PROHIBITED. Although this transmission and any > attachments are believed to be free of any virus or other defect > that might affect any computer system into which it is received and > opened, it is the responsibility of the recipient to ensure that it > is virus free and no responsibility is accepted by JPMorgan Chase & > Co., its subsidiaries and affiliates, as applicable, for any loss > or damage arising in any way from its use. If you received this > transmission in error, please immediately contact the sender and > destroy the material in its entirety, whether in electronic or hard > copy format. Thank you. > Please refer to http://www.jpmorgan.com/pages/disclosures for > disclosures relating to UK legal entities. > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org 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. >-- Chuck Cleland, Ph.D. NDRI, Inc. (www.ndri.org) 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917) 438-0894
As a very simple example: TolgaData<-data.frame(A=c(1,2),B=c(3,4))names(TolgaData )<- c( "newA", "newB" )> TolgaData Column names should now be newA and newB Best, Bill> To: r-help@r-project.org> From: tolga.i.uzuner@jpmorgan.com> Date: Fri, 6 Jun 2008 20:06:41 +0100> Subject: [R] col.names ?> > Dear R Users,> > A bit of an elementary question, but somehow, I haven't been able to > figure it out. I'd like to changes the column names of a data frame, so I > am looking for something like col.names (as in row.names). Could someone > please show me how to change the column names of a data frame ?> > Thanks,> Tolga> > Generally, this communication is for informational purposes only> and it is not intended as an offer or solicitation for the purchase> or sale of any financial instrument or as an official confirmation> of any transaction. In the event you are receiving the offering> materials attached below related to your interest in hedge funds or> private equity, this communication may be intended as an offer or> solicitation for the purchase or sale of such fund(s). All market> prices, data and other information are not warranted as to> completeness or accuracy and are subject to change without notice.> Any comments or statements made herein do not necessarily reflect> those of JPMorgan Chase & Co., its subsidiaries and affiliates.> > This transmission may contain information that is privileged,> confidential, legally privileged, and/or exempt from disclosure> under applicable law. If you are not the intended recipient, you> are hereby notified that any disclosure, copying, distribution, or> use of the information contained herein (including any reliance> thereon) is STRICTLY PROHIBITED. Although this transmission and any> attachments are believed to be free of any virus or other defect> that might affect any computer system into which it is received and> opened, it is the responsibility of the recipient to ensure that it> is virus free and no responsibility is accepted by JPMorgan Chase &> Co., its subsidiaries and affiliates, as applicable, for any loss> or damage arising in any way from its use. If you received this> transmission in error, please immediately contact the sender and> destroy the material in its entirety, whether in electronic or hard> copy format. Thank you.> Please refer to http://www.jpmorgan.com/pages/disclosures for> disclosures relating to UK legal entities.> [[alternative HTML version deleted]]> > ______________________________________________> R-help@r-project.org 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. _________________________________________________________________ sh_skydrive_062008 [[alternative HTML version deleted]]