[R] Object Browser
Dear all, I have tried all the popular R IDE or editors like Eclipse, Komodo, JGR, Revolution... They all have fancy fucntions like auto completion, syntax highlight BUT, I JUST WANT A OBJECT BROWSER! The easiest way to view objects in R console is fix(), but you have no global view of all the objects in the workspace. Revolution has the best object browser so far, but this thing is way too big... Eclipse all has automatically object browser, but you can't only see the basic summary info. and it's really tricky to configure StatET. Jgr is very handy, when you double click the object name, you can view the object in a spreadsheet like using fix(), but you have to press the Refresh button each time you want to see the updated objects... So, is there any thing like the combination of eclipse and Jgr? If not, I am interested to develope something to fulfill this simple but very important function. But right now I have no idea where to start. Any suggestions? Peter - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Object-Browser-tp4651647.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Can you turn a string into a (working) symbol?
Dear folks--
Suppose I have an expression that evaluates to a string, and that that
string, were it not a character vector, would be a symbol. I would like a
function, call it doppel(), that will take that expression as an argument
and produce something that functions exactly like the symbol would have if I
typed it in the place of the function of the expression. It should go as
far along the path to evaluation as the symbol would have, and then stop,
and be available for subsequent manipulation. For example, if
aa - 3.1416
bb - function(x) {x^2}
r - 2
xx - c(aa, bb)
out - doppel(xx[1])*doppel(xx[2])(r)
Then out should be 13.3664
Or similarly, after
doppel(paste(a, a, sep='')) - 3
aa
typing aa should return 3.
Is there such a function? Can there be?
I thought as.symbol would do this, but it does not.
as.symbol (xx[1])*as.symbol (xx[2])(r)
Error: attempt to apply non-function
-
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[R] Conjoint Analysis in R??
Pls advise how I can use R in conjoint analysis?? regds Faisal Afzal Siddiqui Karachi, Pakistan Looking for last minute shopping deals? - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Conjoint-Analysis-in-R-tp4651650.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] postForm() in RCurl and library RHTMLForms
Hi RUsers, Suppose I want to see the data on the website url - http://www.nseindia.com/content/indices/ind_histvalues.htm; for the index SP CNX NIFTY for dates FromDate=01-11-2010,ToDate=02-11-2010 then read the html table from the page using readHTMLtable() I am using this code webpage - postForm(url,.params=list( FromDate=01-11-2010, ToDate=02-11-2010, IndexType=SP CNX NIFTY, Indicesdata=Get Details), .opts=list(useragent = getOption(HTTPUserAgent))) But it doesn't give me desired result Also I was trying to use the function getHTMLFormDescription from the package RHTMLForms but there we can't use the argument .opts=list(useragent = getOption(HTTPUserAgent)) which is needed for this particular website - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/postForm-in-RCurl-and-library-RHTMLForms-tp4651655.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Stepwise analysis with fixed variables
Hello, How can I run a backward stepwise regression with part of the variables fixed, while the others participate in the backward stepwise analysis? Thank you - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Stepwise-analysis-with-fixed-variables-tp4651636.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Reading PDF files
I need to do text mining on PDF files. I understand there is a readPDF command in tm that can be used. Have read the 2008 posts on converting PDF files to text by Tony Breyal and others. Wondering if the procedure has been standardized in any tutorial or otherwise? Being new to R, I was able to follow only part of the discussion. Any way to get a set of step by step instructions appropriate for my level? I am an ageing academic who has worked mostly with SAS and MATLAB. - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Reading-PDF-files-tp4651657.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Problems with nls
I'm trying to fit the Bass Diffusion Model using the nls function in R but I'm running into a strange problem. The model has either two or three parameters, depending on how it's parameterized, p (coefficient of innovation), q (coefficient of immitation), and sometimes m (maximum market share). Regardless of how I parameterize the model I get an error saying that the step factor has decreased below it's minimum. I have tried re-setting the minimum in nls.controls but that doesn't seem to fix the problem. Likewise, I have run through a variety of start values in the past few days, all to no avail. Looking at the trace output it appears that R believes I always have one more parameter than I actually have (i.e. when the model is parameterized with p and q R seems to be seeing three parameters, when m is also included R seems to be seeing four). My experience with nls is limited, can someone explain to me why it's doing this? I've included the data set I'm working with (published in Michalakelis et al. 2008) and some example code. ## Assign relevant variables adoption - c(167000,273000,531000,938000,2056452,3894103,5932090,7963742,9314687,10469060,11393302,11976340) time - seq(from = 1,to = 12, by = 1) ## Models Bass.Model - adoption ~ ((p + q)^2/p) * (exp(-(p + q) * time)/((q / p) * exp(-(p + q) * time) + 1)^2) ## Starting Parameters Bass.Params - list(p = 0.1, q = 0.1) ## Model fitting - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Problems-with-nls-tp4651641.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] postForm() in RCurl and library RHTMLForms
Hi RUsers, Suppose I want to see the data on the website url - http://www.nseindia.com/content/indices/ind_histvalues.htm; for the index SP CNX NIFTY for dates FromDate=01-11-2010,ToDate=02-11-2010 then read the html table from the page using readHTMLtable() I am using this code webpage - postForm(url,.params=list( FromDate=01-11-2010, ToDate=02-11-2010, IndexType=SP CNX NIFTY, Indicesdata=Get Details), .opts=list(useragent = getOption(HTTPUserAgent))) But it doesn't give me desired result Also I was trying to use the function getHTMLFormDescription from the package RHTMLForms but there we can't use the argument .opts=list(useragent = getOption(HTTPUserAgent)) which is needed for this particular website Thanks and Regard - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/postForm-in-RCurl-and-library-RHTMLForms-tp4651644.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Sullivan, Timmerman and White 1999: TA rules, and R
Friends I am trying to save myself some tedious work. I am processing a paper from The Journal Of Finance * Vol. LIV, No. 5 October 1999 by Sullivan, Timmerman and White. Data-Snooping, Technical Trading Rule Performance, and the Bootstrap I am aiming to reproduce their results using the same TA rules as they used. They describe the rules they use in English and I am in the process of trying to programme them into R. But if some one has already done this it would save me a pile of work. It would be nice to just grab some rules from the TTR package, but because of the way STW describe the rules it is quite a lot of work to calculate what parameters to use. So I am clutching at a straw here: If anybody could point me in a better direction than slogging through the English text and trying to match that with the TTR docs I would be grateful cheers - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Sullivan-Timmerman-and-White-1999-TA-rules-and-R-tp4651658.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] e1071 SVM: Cross-validation error confusion matrix
Hi, I ran two svm models in R e1071 package: the first without cross-validation and the second with 10-fold cross-validation. I used the following syntax: #Model 1: Without cross-validation: svm.model - svm(Response ~ ., data=data.df, type=C-classification, kernel=linear, cost=1) predict - fitted(svm.model) cm - table(predict, data.df$Response) cm #Model2: With 10-fold cross-validation: svm.model2 - svm(Response ~ ., data=data.df, type=C-classification, kernel=linear, cost=1, cross=10) predict2 - fitted(svm.model2) cm2 - table(predict2, data.df$Response) cm2 However, when I compare cm and cm2, I notice that the confusion matrices are identical although the accuracy of each model is diffent. What am I doing wrong? Thanks for you help, - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/e1071-SVM-Cross-validation-error-confusion-matrix-tp4651652.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Problems of metafile plots when converting word to pdf file
Hi all, I copy metafile boxplot from R to Word. Then save as Pdf file. But I found there are some unexpected black lines in some plots within this PDF file. Please give me some advice how to get rid of these black lines in PDF files. Thanks a lot, Jim - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Problems-of-metafile-plots-when-converting-word-to-pdf-file-tp4651659.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] RMySQL install on windows
I have been trying to install RMySQL on Windows 7 following the procedure at: http://biostat.mc.vanderbilt.edu/wiki/Main/RMySQL I think I have properly installed RTools and created a proper Renviron.site file saying: MYSQL_HOME=C:/Program Files/MySQL/MySQL Server 5.5 When I try to install the packages from source, I get warnings that suggest I'm still not quite with the program yet. There are comments about POSIX paths that I don't quite grasp. Can anyone give me additional hints? There seems to be a libmysql.dll in the /lib subdirectory although the install seems to be looking in the /bin directory for a file of similar name. Is this something that has changed with recent versions of MySQL that should be fixed in the RMySQL package or is it something I can work around by hand or by properly setting some environmental variable? Thanks, - -- View this message in context: http://r.789695.n4.nabble.com/RMySQL-install-on-windows-tp4651660.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Object Browser
What's the best object browser? Dear all, I have tried all the popular R IDE or editors like Eclipse, Komodo, JGR, Revolution... They all have fancy fucntions like auto completion, syntax highlight BUT, I JUST WANT A OBJECT BROWSER! The easiest way to view objects in R console is fix(), but you have no global view of all the objects in the workspace. Revolution has the best object browser so far, but this thing is way too big... Eclipse all has automatically object browser, but you can't only see the basic summary info. and it's really tricky to configure StatET. Jgr is very handy, when you double click the object name, you can view the object in a spreadsheet like using fix(), but you have to press the Refresh button each time you want to see the updated objects... So, is there any thing like the combination of eclipse and Jgr? If not, I am interested to develope something to fulfill this simple but very important function. But right now I have no idea where to start. Any suggestions? - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Object-Browser-tp4651654.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Linking C/C++ GUI to R.dll
Hi, I am in the process of linking a C/C++ application to the R.dll directly. I have obtained the R source code and compiled it successfully. I have also successfully linked the R.dll directly into our application and have made calls successfully into the R.dll that are included in the sample rtest.c and in the Writing R Extensions - The R API. The R functionality that we are interested in embedding into our application is the data analysis and graphics. However, I did not see any references to this in the R API section of the documentation. Is this functionality available from our C/C++ application via the R.dll? If so, how do we access this functionality? Thank you, - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Linking-C-C-GUI-to-R-dll-tp4651661.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Sullivan, Timmerman and White 1999: TA rules, and R
Friends I am trying to save myself some tedious work. I am processing a paper from The Journal Of Finance * Vol. LIV, No. 5 October 1999 by Sullivan, Timmerman and White. Data-Snooping, Technical Trading Rule Performance, and the Bootstrap I am aiming to reproduce their results using the same TA rules as they used. They describe the rules they use in English and I am in the process of trying to programme them into R. But if some one has already done this it would save me a pile of work. It would be nice to just grab some rules from the TTR package, but because of the way STW describe the rules it is quite a lot of work to calculate what parameters to use. So I am clutching at a straw here: If anybody could point me in a better direction than slogging through the English text and trying to match that with the TTR docs I would be grateful - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Sullivan-Timmerman-and-White-1999-TA-rules-and-R-tp4651656.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] residual and null deviance of an lme object with correlation structure
Hello, I am attempting to calculate the residual and null deviance of an lme object that includes a corAR1 correlation structure. I tried deviance(lme.object) and it only returned NULL. Can anyone help? Thank you. - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/residual-and-null-deviance-of-an-lme-object-with-correlation-structure-tp4651662.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] finding index of maximum value in vector
I found: max.col(matrix(c(1,3,2),nrow=1)) Is there a more concise/elegant way? Thanks, - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/finding-index-of-maximum-value-in-vector-tp4651663.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Fitting binomial lmer-model, high deviance and low logLik
Hello I have a problem when fitting a mixed generalised linear model with the lmer-function in the Matrix package, version 0.98-7. I have a respons variable (sfox) that is 1 or 0, whether a roe deer fawn is killed or not by red fox. This is expected to be related to e.g. the density of red fox (roefoxratio) or other variables. In addition, we account for family effects by adding the mother (fam) of the fawns as random factor. I want to use AIC to select the best model (if no other model selection criterias are suggested). the syntax looks like this: mod - lmer(sfox ~ roefoxratio + (1|fam), data=manu2, family=binomial) The output looks ok, except that the deviance is extremely high (1.798e+308). mod Generalized linear mixed model fit using PQL Formula: sfox ~ roefoxratio + (1 | fam) Data: manu2 Family: binomial(logit link) AIC BIC logLik deviance 1.797693e+308 1.797693e+308 -8.988466e+307 1.797693e+308 Random effects: GroupsNameVarianceStd.Dev. fam (Intercept) 17.149 4.1412 # of obs: 128, groups: fam, 58 Estimated scale (compare to 1) 0.5940245 - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Fitting-binomial-lmer-model-high-deviance-and-low-logLik-tp4651668.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Hmisc latex cell background color
Dear latex/R-Sweavers,
Using the codel below, I can color text in individual cells for latex
output.
Is there a similar way to get a background shading? My attempts failed
because I did not get the closing brace at the right place with Hmisc/latex.
library(Hmisc)
x - as.data.frame(diag(rnorm(3),nrow=3))
cellTex - matrix(rep(, NROW(x) * NCOL(x)), nrow=NROW(x))
cellTex[2,2] - \color{red}
ct - latex(x, cellTexCmds = cellTex,numeric.dollar=FALSE)
ct$style - color
dvi(ct)
-
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[R] Kalman Filter Forecast using 'SSPIR'
Dear R Users, I am new to state-space modeling. I am using SSPIR package for Kalman Filter. I have a data set containing one dependent variable and 7 independent variables with 250 data points. I want to use Kalman Filter for forecast the future values of the dependent variable using a multiple regression framework. I have used ssm function to produce the state space (SS) object, but I am bit confused that how can I predict the future values. Thanks a lot in advance. - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Kalman-Filter-Forecast-using-SSPIR-tp4651666.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] Fitting binomial lmer-model, high deviance and low logLik
Hello I have a problem when fitting a mixed generalised linear model with the lmer-function in the Matrix package, version 0.98-7. I have a respons variable (sfox) that is 1 or 0, whether a roe deer fawn is killed or not by red fox. This is expected to be related to e.g. the density of red fox (roefoxratio) or other variables. In addition, we account for family effects by adding the mother (fam) of the fawns as random factor. I want to use AIC to select the best model (if no other model selection criterias are suggested). the syntax looks like this: mod - lmer(sfox ~ roefoxratio + (1|fam), data=manu2, family=binomial) The output looks ok, except that the deviance is extremely high (1.798e+308). mod Generalized linear mixed model fit using PQL Formula: sfox ~ roefoxratio + (1 | fam) Data: manu2 Family: binomial(logit link) AIC BIC logLik deviance 1.797693e+308 1.797693e+308 -8.988466e+307 1.797693e+308 Random effects: GroupsNameVarianceStd.Dev. fam (Intercept) 17.149 4.1412 # of obs: 128, groups: fam, 58 Estimated scale (compare to 1) 0.5940245 - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Fitting-binomial-lmer-model-high-deviance-and-low-logLik-tp4651669.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] How to simulate correlated data
Hello there, I would like to simulate X --Normal (20, 5) Y-- Normal (40, 10) and the correlation between X and Y is 0.6. How do I do it in R? Thank you very much - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/How-to-simulate-correlated-data-tp4651667.html Sent from the R help mailing list archive at Nabble.com. __ 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.
[R] concatenating expressions and standard text
Hi all, is it possible to concatenate expressions and basic text when for instance labeling axis of a plot? I would like to see something like the concatenation of expression(C[0]) and for case 1 on my x axis. Obviously a plot(x, y, xlab=paste(expression(C[0]), in case1)) will not work. Thank you in advance, - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/concatenating-expressions-and-standard-text-tp4651670.html Sent from the R help mailing list archive at Nabble.com. __ 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.
Re: [R] superimpose density line over hist
Romain == Romain Francois [hidden email] on Tue, 13 Dec 2005 15:40:59 +0100 writes: Romain A few comments : Romain - your code should be reproductible, otherwise it is useless. (that Romain recommandation is on the posting guide) Romain - that question is a top ten question on that list, go to the archive Romain and you will find answers. (also posting guide) Romain BTW, it should be a FAQ and what about an example of overlaying in hist Romain help page ? What about the following one --- do also note the comments though! set.seed(14) x - rchisq(100, df = 4) ## Comparing data with a model distribution should be done with qqplot()! qqplot(x, qchisq(ppoints(x), df = 4)); abline(0,1, col = 2, lty = 2) ## if you really insist on using hist() ... : hist(x, prob = TRUE, ylim = c(0, 0.2)) curve(dchisq(x, df = 4), col = 2, lty = 2, lwd = 2, add = TRUE) - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Re-superimpose-density-line-over-hist-tp4651671.html Sent from the R help mailing list archive at Nabble.com. __ 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.
Re: [R] Labeling a range of bars in barplot?
Marc Schwartz (via MN) wrote: On Tue, 2005-12-13 at 10:53 +, Dan Bolser wrote: Hi, I am plotting a distribution of (ordered) values as a barplot. I would like to label groups of bars together to highlight aspects of the distribution. The label for the group should be the range of values in those bars. As this is hard to describe, here is an example; - TO GET MORE DETAILS CLICK HERE -- View this message in context: http://r.789695.n4.nabble.com/Re-Labeling-a-range-of-bars-in-barplot-tp4651672.html Sent from the R help mailing list archive at Nabble.com. __ 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.
