similar to: a question on list manipulation

I would like to know how to convert a string with characters to all uppercase or all lowercase? If anyone could let me know if there exists a function in R for the conversion, that will be very helpful. Regards, Suman [[alternative HTML version deleted]]

 Hello everyone, I'm trying to change the name variables of a big dataset. Here's more than 300 variables. The point is that I have to match it with another dataset that have same variables, but in lowercase, the I can use rbind and do my work. Is there any function for changing uppercase or lowercase variables? Thank you in advance! José [[alternative HTML version deleted]]

Dear R People: Is there a function to convert a character string to all uppercase or all lowercase please? I'm sure that I've used one before but I'm drawing a blank. Thanks, Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: erinm.hodgess at gmail.com

On 08/07/16 23:43, Markus Mayer wrote: > Add a collection of generic functions to convert strings to lowercase > or uppercase. > > Changing the case of a string (with or without copying it first) seems > to be a recurring requirement in the kernel that is currently being > solved by several duplicated implementations doing the same thing. This > change aims at reducing this

This series introduces a family of generic string case conversion functions. This kind of functionality is needed in several places in the kernel. Right now, everybody seems to be implementing their own copy of this functionality. Based on the discussion of the previous version of this series[1] and the use cases found in the kernel, it does look like having several flavours of case conversion

This series introduces a family of generic string case conversion functions. This kind of functionality is needed in several places in the kernel. Right now, everybody seems to be implementing their own copy of this functionality. Based on the discussion of the previous version of this series[1] and the use cases found in the kernel, it does look like having several flavours of case conversion

This series introduces a family of generic string case conversion functions. This kind of functionality is needed in several places in the kernel. Right now, everybody seems to be implementing their own copy of this functionality. Based on the discussion of the previous version of this series[1] and the use cases found in the kernel, it does look like having several flavours of case conversion

This series introduces a family of generic string case conversion functions. This kind of functionality is needed in several places in the kernel. Right now, everybody seems to be implementing their own copy of this functionality. Based on the discussion of the previous version of this series[1] and the use cases found in the kernel, it does look like having several flavours of case conversion

Hi R users, suppose I have two vectors, > x=c(1,2,3,4,5) > y=c('a','b','c','a','c') How can I get a data.frame like this? > xy count a 5 b 2 c 8 I know a few ways to fulfill the task. However, I have a huge number of this kind calculations, so I'd like an efficient solution. Thanks -- Best, Zhenjiang

Hello, Does anyone know of a "slick" way to get R to convert a string which is all upper case to a string where the first letter in each word is upper case and all others are lower case? I suspect the solution is to begin by parsing the string, convert the appropriate letters to upper and lower case using "toupper" and "tolower", and then to paste the pieces back

Hi, For example, the data.frame like: origdata.long <- read.table(header=T, con <- textConnection(' subject sex condition measurement 1 M control 7.9 1 M first 12.3 1 M second 10.7 2 F control 6.3 2 F first 10.6 2 F second 11.1 3 F control 9.5 3

What is the easiest way to change within vector of strings each letter after a space into a capital letter? E.g.: c( "this is an element of the vector of strings", "second element" ) becomes: c( "This Is An Element Of The Vector Of Strings", "Second Element" ) My reason to try to do this is to get more readable abbreviations. (A suggestion would be to

On Sat, Jul 09, 2016 at 09:11:05PM -0700, Markus Mayer wrote: > On 9 July 2016 at 20:13, Chris Metcalf <cmetcalf at mellanox.com> wrote: > > On 7/8/2016 6:43 PM, Markus Mayer wrote: > >> > >> This series introduces a family of generic string case conversion > >> functions. This kind of functionality is needed in several places in > >> the kernel.

I am trying to write a function to change the case of all of the text in a data frame to lower case. I do not have foreknowledge of the data frame names or the data types of each column. It seems that if one references the data frame by index, then it returns class "data.frame" but if it is referenced by name, it returns class "factor" or whatever the column actually is:

Hi, I have a for loop to make 2 types of plots and I'd like to save one type of plots to a pdf file and the other to another pdf file. How can I control which plot will be saved to which pdf? Thanks -- Best, Zhenjiang

Hi, I have a file like this: 1 2 0.1 2 3 0.2 3 1 0.3 And I want to read it to create a matrix like this: [,1] [,2] [,3] [1,] 0 0.1 0 [2,] 0 0 0.2 [3,] 0.3 0 0 How can I do it efficiently? Thanks. -- Best, Zhenjiang [[alternative HTML version deleted]]

On 7/8/2016 6:43 PM, Markus Mayer wrote: > This series introduces a family of generic string case conversion > functions. This kind of functionality is needed in several places in > the kernel. Right now, everybody seems to be implementing their own > copy of this functionality. > > Based on the discussion of the previous version of this series[1] and > the use cases found in

Hi all, Suppose I have 2 data.frame , a and b, how can I add them together to get c? Thanks > a A a 1 b 2 c 3 > b A a 6 c 1 > c A a 7 b 2 c 4 -- Best, Zhenjiang [[alternative HTML version deleted]]

Hi R users, Suppose I have two lists and the names of list 'm' are a subset of those of 'n', how can I sum the two lists with corresponding elements added together to get list 'o'? > n = list("a"=1,"b"=3,"c"=5) > m = list('b'=4) > o $a [1] 1 $b [1] 7 $c [1] 5 Thanks -- Best, Zhenjiang [[alternative HTML version

Hi all, When running R interactively, I have the problem as following: > library(ggplot2) Loading required package: reshape Loading required package: plyr Attaching package: 'reshape' The following object(s) are masked from 'package:plyr': round_any Loading required package: grid Loading required package: proto > data(VADeaths) > pg <- ggplot(melt(VADeaths),