similar to: Matrix stability problem

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

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, 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

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, How do you change the language of the labels in a graph. In this example, I want to get French labels by changing Sys.putenv. I should get "Mai" instead of "May". Sys.putenv(LANGUAGE="fr") x <- as.Date(c("1jan1960", "2jan1960", "31mar1960", "30jul1960"), "%d%b%Y") y <-1:4 plot(x,y) Regards, Pierre

Hello, I'm dealing with financial time series. I'm trying to find out X in this sentence: The most recent close is the lowest level since X(date). Here's an example of what I'm looking for: library(fBasics) data(DowJones30) tail(DowJones30[,1:5],n=10) I need to come up with a vector that would look like this AA AXP T ... 2000-12-21

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}}

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")

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

Hello there, I tried so many times to download windows binary zip package but it told me that I don't have the access to do so. It worked for me a few months ago. Please help me with it. Thank you Lisa Wang Msc. Princess Margaret Hospital Toronto , Canada tel: (416) 946 4501 ext.5201

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 '

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 R-helpers, What I have: I am working with vectors not matrice: #Basic equations A <-c(-20,-9,-2) x <-c(0.17,0.22,0.61) B <- crossprod(A,x) # R matrix multiplication works with vectors A%*%x==B # Is true... Question: If x is unknown and A and B are known, how do I solve for x in R? solve(A,B) won't work because A is not a square matrix solve(A,B) Error in solve.default(A,

Hello, I need to remove columns in a matrix. The number of columns varies from 0 to n. I can't figure out how to specify the zero case. aa <-matrix(runif(5^2),5,5) #remove column 3 aa[,-3] #remove no column aa[,-NULL] Error in -NULL : invalid argument to unary operator I know I could use ifelse, but it would complicate my model a lot. Is there a direct way to

First of all, I apologize for the triple post, but I did not see that the word wrap on the r-help list site would render my code unusable. So here it is again. Hoping that this time it will work if you cut and paste it in your Rgui. I have a program that works well in Rgui but that does not work in a batch file (Execution halted). Here's the code (it will work on your R, but you need