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Dear R users, I am trying to extract the rownames of a data set for which each columns meet a certain criteria. (condition - elements of each column to be equal 1) I have the correct result, however I am seeking for more efficient (desire vectorization) way in implementing such problem as it can get quite messy if there are hundreds of columns. Arbitrary data set and codes are shown below for

Hi guys, Are there any feasible methods in searching & finding non-ASCII characters in R? For example, from the following object, x <- mia. SzaÌmitaÌó The desired output is, x.out <- mia. SzaImitaIA Your help in resolving this would be greatly appreciated. [[alternative HTML version deleted]]

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Dear R users, I have numerous data sets (csv files) saved in the folder which has the same name as individual data. (i.e data x1 saved in x1 folder, data x2 in x2 folder etc) I would like to read in the desired data set name using 'scan' function and assign this inputted value to an object so that it can be used in the 'read.csv' function. For example, x <- scan() 1: 0708

Hi all, I am currently woking with hundreds of objects in workspace and whenever I invoke ls() to observe the names of the objects, there are too much of unnecessary variables. For example, if I only require say 3 or 4 objects from hundreds of objects in workspace, are there any methods that may do the job? I have tried rm(-c(x,xx,xxx)), but no luck.. Your feedback in this problem would be

Hi all, There are matrices with same column names but arranged in different orders and I desire columns of these matrices to have same order. For example, below are 2 arbitrary data sets with columns arranged in different order. I require columns of these to have same order as specified in "columns" object and the results stored in the original object names. I know this can be done

Dear R users, I would like to create the following 3 folders (FUND1, FUND2, MARINE) within the 'parent.dir' as defined below. FUND1 <- "FD1 Q4 2009" FUND2 <- "FD2 Q4 2009" MARINE <- "MARINE Q4 2009" parent.dir <- "D:/....................." folders <- c("FUND1", "FUND2", "MARINE") for (i in

Hi all, I have imported csv file for processing and exported as txt file (using * "write.table"* with sep = "\t", row.names = FALSE options) However, when I import this txt file in R (*"read.delim"* with header = TRUE, sep = "\t" options) the dimension (i.e number of rows) is inconsistent with the original file. Any solution to this problem would be

Hi all, I imported a file (in CSV format) into R for processing, then imported the result into MySQL. However, there are *carriage return* characters (hexadecimal: *0D*) that are appended to the characters in the last field of the table. i.e *\r* appended to the character values (as shown below) Before importing into MySQL: asdf After importing into MySQL: asdf*\r* ** ** Are there any options

Dear R users, Suppose the csv file contains header names such as *"Nike, dunk"*, *"Converse, All stars"* etc When imported to R (with header = T option), the column names are given by: *"Nike..dunk"* *"Converse..All.stars"* I have tried the following command to convert these column names to the original names as in the input source.

Hi R users, I desire to transform the following vector consisting of repeated characters x <- rep(letters, 3) into this exact format (i.e a single string containing each characters in quotation mark separated by comma between each; al ). ("a", "b", "c", "d", ........"a", "b", "c", "d", ...........,

Hi all, I wish to generate additional records according to one of the field values in a data frame. For example, unique record from the input data is required to be generated number of times as specified in the 'Number' field in the following code. > x <- data.frame(Name = c("a", "b", "c", "d"), Group = c("VR", "MR",

Hi all, I am trying to convert all the dates (all days that are not Friday) in data frame into dates to next Friday. The following works but the result is returned as vector rather than the original class. It would be greatly apprecited if you could provide any solution to this problem. Many thanks in advance. # Define arbitrary initial date value ini <- as.Date("2010/1/1",

Hi, all Basically, I have unknown number of data that need to be imported and collapsed row-wisely. The code below works fine, however the "rbind" function may require 50 arguments if there are 50 data files... Thus, I would like to explore whether there are any methods in using dynamic objects (i.e from the resulting objects in the for loop) as an argument in the *"rbind"*

Dear R users, I would like to accumulate objects generated from 'for' loop to a list or array. To illustrate the problem, arbitrary data set and script is shown below, x <- data.frame(a = c(rep("n",3),rep("y",2),rep("n",3),rep("y",2)), b = c(rep("y",2),rep("n",4),rep("y",3),"n"), c =

Dear R users, I have a data where I desire to subset according to certain conditions. However, the script is very messy as there are about 30 distinct conditions. (i.e. same script but with different conditions) I would like to make a user defined function so that I can input the desired conditions and just get the results accordingly. Below is an arbitrary data set & sample statements

Hi all, I would like to flag each record in the data according to certain conditions as specified below. For example, If "Close_date" in *dat* is between ("Open" & "Close") or ("Open1" & "Close1") or ("Open2" & "Close2") in *oc, *flag the records as "Valid", otherwise "Invalid" I would like to

Dear R users, Basically, from the following arbitrary data set: a <- data.frame(id=c(c("A1","A2","A3","A4","A5"),c("A3","A2","A3","A4","A5")),loc=c("B1","B2","B3","B4","B5"),clm=c(rep(("General"),6),rep("Life",4))) > a

...ath <- 'macintoshhd/users/me/myfolder/ # or whatever you need read.csv(eval(paste(fpath,fnam,sep="")) #worked for me Carl ----------- Try this: read.csv(sprintf("D://R//Data//%04d//%04d.csv", x, x), header = TRUE) On Wed, Sep 9, 2009 at 9:32 PM, Steven Kang <stochastickang at gmail.com>wrote: > Dear R users, > > > I have numerous data sets (csv files) saved in the folder which has the > same > name as individual data. > (i.e data x1 saved in x1 folder, data x2 in x2 folder etc) > > I would like to read in the desired data set n...

Dear R users, I wish to utilise processed and saved objects as arguments of a function. Specifically, I have created objects using *"assign"* & *"paste"* functions with an incremental index i, the names of the objects are: fund1, fund2, fund3,....., fund80,..... (where the numerical value increments according to the index i & class of these objects are