similar to: Change the language of the labels in a graph

Hello, I have this data frame: ### begin d <-data.frame(matrix(c("1","--","bla",2),2,2)) d # I want to replace the "--" by "\N" and still get a data frame. # I tried: out <-gsub("--","\\\\N",as.matrix(d)) #using as.matrix to get rid of factors out cat(out) # But I lost my data frame ### end Any idea? Regards,

Hello, I need to identify all elements which have a sequence of 3 consecutive upper case letters, anywhere in the string. I tested my grep expression on this site: http://regexlib.com/RETester.aspx But when I try it in R, it does not filter anything. str <-c("AGH", "this WOUld be good", "Not Good at All") str[grep('[A-Z]{3}',str)] #looking for a

Hello, How would you export a 3-dimensional array to an SQL database? a<-array(1:24, 2:4) Is there an open source DB that would be more adequate for this type of operation? Is there a way to reshape/flatten a 3-dimensional array? Regards, Pierre Lapointe ************************************************** AVIS DE NON-RESPONSABILITE: Ce document transmis par courrie...{{dropped}}

Gregexpr - extract results with lapply Hello, I need to extract sequences of three upper case letters in a string. In other words, in this string: str <-c("ABC", "this WOUld be gOOD") The result I'm looking for is ABC WOU OOD. With gregexpr, I can get the position and length of the sequences gregexpr('[A-Z]{3}',str,perl=TRUE) [[1]] [1] 1

Hi, This is my command line request: mysql -u root -ppassword -D quant <c:/cline.txt This line works from the command line in windows. In R, when I try to use the system function, it does not work, > system(paste('mysql -u root -ppassword -D quant <c:/cline.txt'),show.output.on.console = TRUE) ERROR 1102 (42000): Incorrect database name '<c:/cline.txt' It seems

Here's my contribution to R. When R interacts with external programs (MySQL, cURL, etc.), it often requires a pasted string that is sent to these programs. For readability reasons, it is often preferable to have complex commands (SQL for example) spread on several lines. However, the normal paste function requires to add additional ' ", ' at the end of each line and another '

Hello, I created a table in MySQL with this command CREATE TABLE example (pk INT NOT NULL AUTO_INCREMENT,PRIMARY KEY(pk), id VARCHAR(30),col1 VARCHAR(30),col2 VARCHAR(30)) ### In R, I can connect to this table: library(DBI) library(RODBC) chan <- odbcConnect("MySQL51", uid="root", pwd="xxx") first <- sqlQuery(chan, "select * from example")

Dear all, I'd appreciate any hints how to arrange some plots. I have three plots. I would like to arrange them in the following order: - Plot 1 and Plot 2 should be in the upper row - Plot 3 should be in the lower row but centered in the middle. I hope the following sketch will help understanding my problem ================ | === === | || P1| |P2 | | || | | | | | === === |

Hello, Let's say I have 50 R scripts to run. What would be the most efficient way to run them? I thought I could do multiple Rterms in a DOS batch file: Ex: Rterm <1.R> 1.txt Rterm <2.R> 2.txt ... Rterm <50.R> 50.txt However, I'm afraid they will all open at the same time. I know I could pause the batch file with something like: PING 1.1.1.1 -n 1 -w 60000

Hi, This is my command line request: mysql -u root -ppassword -D quant <c:/cline.txt This line works from the command line in windows. In R, when I try to use the system function, it does not work, > system(paste('mysql -u root -ppassword -D quant <c:/cline.txt'),show.output.on.console = TRUE) ERROR 1102 (42000): Incorrect database name '<c:/cline.txt' It seems

Hello, I'm trying to find out if something has been written in R regarding data assimilation and inverse modeling. These searches do not return anything that look like Kalman filter variations (EK, SEEK, ROEK, etc.) help.search("assimilation") help.search("inverse model") Regards, ************************************************** AVIS DE NON-RESPONSABILITE: Ce

Hello, I want to reduce the distance between my ticks and their labels. I managed to do it for the x-axis, but the y-axis puzzles me. Here's an example where there is no space between the x-asix ticks and labels. par(las=1) plot(runif(50), type="l",xaxt="n",yaxt="n",ylab="", bty="l") axis(2) axis(1,padj=-1.5) #However, axis(2,padj=-1.5)

Hello, Ever wondered how people use a particular function in their programs? Use Google to find actual scripts: filetype:R boxplot will return real R scripts using the boxplot function. Regards, Pierre Lapointe Assistant Market Strategist *********************************************************************************** AVIS DE NON-RESPONSABILITE:\ Ce document transmis par

Hello, I have an excel file that I load through RODBC. Some of my columns are blank. They are equity time series and the stocks did not exist at the earlier dates. My problem is that the whole column becomes <NA> even though there are numbers at later dates. Here's my excel file http://www.tradebit.com/download.php/35699 <http://www.tradebit.com/download.php/35699> And

Hi everybody When I try example of strptime x <- c("1jan1960", "2jan1960", "31mar1960", "30jul1960") z <- strptime(x, "%d%b%Y") The result is; > z [1] NA NA NA NA I have got the same result with complete form of month but not with numeric form. Any idea? [[alternative HTML version deleted]]

Hello, This is not a problem with R, the calculated results are mathematically correct. This a matrix stability problem. Because of measuring errors, my matrix solution is a bit off. Here is what my equations look like: A11 x11+A12 x12 +A13 x13 = b1 A21 x21+A22 x21 +A23 x23 = b2 A31 x31+A32 x31 +A33 x33 = b3 A is a reading, X is a measured weight, and b is total. The 3 experiments give

I'm using R V 2.2.1. When I try an example from the as.Date help page, I get an error. > x <- c("1jan1960", "2jan1960", "31mar1960", "30jul1960") > z <- as.Date(x, "%d%b%Y") Error in strptime(x, format) : 2 arguments passed to 'strptime' which requires 3 > Any suggestions would be appreciated. Thanks, Rob

On Thu, 11 Jan 2001 stephen@anc.ed.ac.uk wrote: > Hi, > > The help file for strptime has the following code which doesn't work > for me: > > ## read in date info in format `ddmmmyyyy' > x <- c("1jan1960", "2jan1960", "31mar1960", "30jul1960") > z <- strptime(x, "%d%b%Y") > > z > [1]

Hello, strptime is still not working correctly in my computer (Windows 98 and R Version 1.3.1) From x <- c("1jan1960", "2jan1960", "31mar1960", "30jul1960") strptime(x, "%d%b%Y") I obtain [1] "NA" "NA" "NA" "NA" while x <- c("01011960", "02011960", "3131960",

Dear friends. Library Date was updated recently. I do not remember having seen the error below until now ? The plot title is made appropriately but the error message may be annoying, right ? I use version 1.1 on windows 98. library(date) tt <- as.date(c("1jan1960", "2jan1960", "31mar1960", "30jul1960")) plot(tt,c(1:4),main="How's that ?")