bcrombie
2015-Jun-18 13:09 UTC
[R] How to round only one df row & how to keep 3rd sigdif if zero
# How do I round only one row of a dataframe? # After transposing a dataframe of counts & rates, all values took on the most # of signif digits in the dataset (rates), but I want counts to remain only one digit. # Also, how can I keep 3 significant digits in R when the 3rd is a zero? count <- c(1, 2, 3) rate <- c(16.7, 33.3, 50.0) a <- data.frame(count,rate) a # count rate # 1 1 16.7 # 2 2 33.3 # 3 3 50.0 a <- t(a) a # [,1] [,2] [,3] # count 1.0 2.0 3 # rate 16.7 33.3 50 -- View this message in context: http://r.789695.n4.nabble.com/How-to-round-only-one-df-row-how-to-keep-3rd-sigdif-if-zero-tp4708819.html Sent from the R help mailing list archive at Nabble.com.
PIKAL Petr
2015-Jun-18 14:55 UTC
[R] How to round only one df row & how to keep 3rd sigdif if zero
Hi You need to distinguish between an object and printing an object on console. When you print an object you can use several options for formating. ?sprintf, ?formatC> formatC(t(a), digits=1, format="f")[,1] [,2] [,3] count "1.0" "2.0" "3.0" rate "16.7" "33.3" "50.0">Also when you transpose "a" the result is not data frame but matrix.> str(t(a))num [1:2, 1:3] 1 16.7 2 33.3 3 50 - attr(*, "dimnames")=List of 2 ..$ : chr [1:2] "count" "rate" ..$ : NULL> str(a)'data.frame': 3 obs. of 2 variables: $ count: num 1 2 3 $ rate : num 16.7 33.3 50>If you used google or other internet search options you would get plenty of results yourself. try "formatting numbers R" Cheers Petr> -----Original Message----- > From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of > bcrombie > Sent: Thursday, June 18, 2015 3:09 PM > To: r-help at r-project.org > Subject: [R] How to round only one df row & how to keep 3rd sigdif if > zero > > # How do I round only one row of a dataframe? > # After transposing a dataframe of counts & rates, all values took on > the most # of signif digits in the dataset (rates), but I want counts > to remain only one digit. > # Also, how can I keep 3 significant digits in R when the 3rd is a > zero? > count <- c(1, 2, 3) > rate <- c(16.7, 33.3, 50.0) > a <- data.frame(count,rate) > a > # count rate > # 1 1 16.7 > # 2 2 33.3 > # 3 3 50.0 > a <- t(a) > a > # [,1] [,2] [,3] > # count 1.0 2.0 3 > # rate 16.7 33.3 50 > > > > -- > View this message in context: http://r.789695.n4.nabble.com/How-to- > round-only-one-df-row-how-to-keep-3rd-sigdif-if-zero-tp4708819.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.________________________________ Tento e-mail a jak?koliv k n?mu p?ipojen? dokumenty jsou d?v?rn? a jsou ur?eny pouze jeho adres?t?m. Jestli?e jste obdr?el(a) tento e-mail omylem, informujte laskav? neprodlen? jeho odes?latele. Obsah tohoto emailu i s p??lohami a jeho kopie vyma?te ze sv?ho syst?mu. Nejste-li zam??len?m adres?tem tohoto emailu, nejste opr?vn?ni tento email jakkoliv u??vat, roz?i?ovat, kop?rovat ?i zve?ej?ovat. Odes?latel e-mailu neodpov?d? za eventu?ln? ?kodu zp?sobenou modifikacemi ?i zpo?d?n?m p?enosu e-mailu. V p??pad?, ?e je tento e-mail sou??st? obchodn?ho jedn?n?: - vyhrazuje si odes?latel pr?vo ukon?it kdykoliv jedn?n? o uzav?en? smlouvy, a to z jak?hokoliv d?vodu i bez uveden? d?vodu. - a obsahuje-li nab?dku, je adres?t opr?vn?n nab?dku bezodkladn? p?ijmout; Odes?latel tohoto e-mailu (nab?dky) vylu?uje p?ijet? nab?dky ze strany p??jemce s dodatkem ?i odchylkou. - trv? odes?latel na tom, ?e p??slu?n? smlouva je uzav?ena teprve v?slovn?m dosa?en?m shody na v?ech jej?ch n?le?itostech. - odes?latel tohoto emailu informuje, ?e nen? opr?vn?n uzav?rat za spole?nost ??dn? smlouvy s v?jimkou p??pad?, kdy k tomu byl p?semn? zmocn?n nebo p?semn? pov??en a takov? pov??en? nebo pln? moc byly adres?tovi tohoto emailu p??padn? osob?, kterou adres?t zastupuje, p?edlo?eny nebo jejich existence je adres?tovi ?i osob? j?m zastoupen? zn?m?. This e-mail and any documents attached to it may be confidential and are intended only for its intended recipients. If you received this e-mail by mistake, please immediately inform its sender. Delete the contents of this e-mail with all attachments and its copies from your system. If you are not the intended recipient of this e-mail, you are not authorized to use, disseminate, copy or disclose this e-mail in any manner. The sender of this e-mail shall not be liable for any possible damage caused by modifications of the e-mail or by delay with transfer of the email. In case that this e-mail forms part of business dealings: - the sender reserves the right to end negotiations about entering into a contract in any time, for any reason, and without stating any reasoning. - if the e-mail contains an offer, the recipient is entitled to immediately accept such offer; The sender of this e-mail (offer) excludes any acceptance of the offer on the part of the recipient containing any amendment or variation. - the sender insists on that the respective contract is concluded only upon an express mutual agreement on all its aspects. - the sender of this e-mail informs that he/she is not authorized to enter into any contracts on behalf of the company except for cases in which he/she is expressly authorized to do so in writing, and such authorization or power of attorney is submitted to the recipient or the person represented by the recipient, or the existence of such authorization is known to the recipient of the person represented by the recipient.
Crombie, Burnette N
2015-Jun-18 16:13 UTC
[R] How to round only one df row & how to keep 3rd sigdif if zero
Thanks for taking the time to share your thoughts, PP. I always extensively google & search before resorting to R forum. In my real dataset, not in the example I created for the forum, I had tried converting the matrix to a dataframe but it retained the unwanted format. And, these tables are being used in a report generated with the rtf package, so I have to get the format right for outside the console. Because of another unrelated issue, though, I had to use a different approach to creating the dataframe with counts/rates added, so the issue was circumvented. Cheers. -----Original Message----- From: PIKAL Petr [mailto:petr.pikal at precheza.cz] Sent: Thursday, June 18, 2015 10:56 AM To: Crombie, Burnette N; r-help at r-project.org Subject: RE: [R] How to round only one df row & how to keep 3rd sigdif if zero Hi You need to distinguish between an object and printing an object on console. When you print an object you can use several options for formating. ?sprintf, ?formatC> formatC(t(a), digits=1, format="f")[,1] [,2] [,3] count "1.0" "2.0" "3.0" rate "16.7" "33.3" "50.0">Also when you transpose "a" the result is not data frame but matrix.> str(t(a))num [1:2, 1:3] 1 16.7 2 33.3 3 50 - attr(*, "dimnames")=List of 2 ..$ : chr [1:2] "count" "rate" ..$ : NULL> str(a)'data.frame': 3 obs. of 2 variables: $ count: num 1 2 3 $ rate : num 16.7 33.3 50>If you used google or other internet search options you would get plenty of results yourself. try "formatting numbers R" Cheers Petr> -----Original Message----- > From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of > bcrombie > Sent: Thursday, June 18, 2015 3:09 PM > To: r-help at r-project.org > Subject: [R] How to round only one df row & how to keep 3rd sigdif if > zero > > # How do I round only one row of a dataframe? > # After transposing a dataframe of counts & rates, all values took on > the most # of signif digits in the dataset (rates), but I want counts > to remain only one digit. > # Also, how can I keep 3 significant digits in R when the 3rd is a > zero? > count <- c(1, 2, 3) > rate <- c(16.7, 33.3, 50.0) > a <- data.frame(count,rate) > a > # count rate > # 1 1 16.7 > # 2 2 33.3 > # 3 3 50.0 > a <- t(a) > a > # [,1] [,2] [,3] > # count 1.0 2.0 3 > # rate 16.7 33.3 50 > > > > -- > View this message in context: http://r.789695.n4.nabble.com/How-to- > round-only-one-df-row-how-to-keep-3rd-sigdif-if-zero-tp4708819.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.________________________________ Tento e-mail a jak?koliv k n?mu p?ipojen? dokumenty jsou d?v?rn? a jsou ur?eny pouze jeho adres?t?m. Jestli?e jste obdr?el(a) tento e-mail omylem, informujte laskav? neprodlen? jeho odes?latele. Obsah tohoto emailu i s p??lohami a jeho kopie vyma?te ze sv?ho syst?mu. Nejste-li zam??len?m adres?tem tohoto emailu, nejste opr?vn?ni tento email jakkoliv u??vat, roz?i?ovat, kop?rovat ?i zve?ej?ovat. Odes?latel e-mailu neodpov?d? za eventu?ln? ?kodu zp?sobenou modifikacemi ?i zpo?d?n?m p?enosu e-mailu. V p??pad?, ?e je tento e-mail sou??st? obchodn?ho jedn?n?: - vyhrazuje si odes?latel pr?vo ukon?it kdykoliv jedn?n? o uzav?en? smlouvy, a to z jak?hokoliv d?vodu i bez uveden? d?vodu. - a obsahuje-li nab?dku, je adres?t opr?vn?n nab?dku bezodkladn? p?ijmout; Odes?latel tohoto e-mailu (nab?dky) vylu?uje p?ijet? nab?dky ze strany p??jemce s dodatkem ?i odchylkou. - trv? odes?latel na tom, ?e p??slu?n? smlouva je uzav?ena teprve v?slovn?m dosa?en?m shody na v?ech jej?ch n?le?itostech. - odes?latel tohoto emailu informuje, ?e nen? opr?vn?n uzav?rat za spole?nost ??dn? smlouvy s v?jimkou p??pad?, kdy k tomu byl p?semn? zmocn?n nebo p?semn? pov??en a takov? pov??en? nebo pln? moc byly adres?tovi tohoto emailu p??padn? osob?, kterou adres?t zastupuje, p?edlo?eny nebo jejich existence je adres?tovi ?i osob? j?m zastoupen? zn?m?. This e-mail and any documents attached to it may be confidential and are intended only for its intended recipients. If you received this e-mail by mistake, please immediately inform its sender. Delete the contents of this e-mail with all attachments and its copies from your system. If you are not the intended recipient of this e-mail, you are not authorized to use, disseminate, copy or disclose this e-mail in any manner. The sender of this e-mail shall not be liable for any possible damage caused by modifications of the e-mail or by delay with transfer of the email. In case that this e-mail forms part of business dealings: - the sender reserves the right to end negotiations about entering into a contract in any time, for any reason, and without stating any reasoning. - if the e-mail contains an offer, the recipient is entitled to immediately accept such offer; The sender of this e-mail (offer) excludes any acceptance of the offer on the part of the recipient containing any amendment or variation. - the sender insists on that the respective contract is concluded only upon an express mutual agreement on all its aspects. - the sender of this e-mail informs that he/she is not authorized to enter into any contracts on behalf of the company except for cases in which he/she is expressly authorized to do so in writing, and such authorization or power of attorney is submitted to the recipient or the person represented by the recipient, or the existence of such authorization is known to the recipient of the person represented by the recipient.