similar to: reading a dense file of binary number

Hi all, I'm interested in doing a dot plot where *both* the size and color (more specifically, shade of grey) change with the associated value. I've found examples online for ggplot2 where you can scale the size of the dot with a value: http://had.co.nz/ggplot2/graphics/6a053f23cf5bdfe5155ab53d345a5e0b.png Or scale the color with the value:

Hi all, I'm trying to figure out the effective differences between BFGS and L-BFGS-B are, besides the obvious that L-BFGS-B should be using a lot less memory, and the user can provide box constraints. 1) Why would you ever want to use BFGS, if L-BFGS-B does the same thing but use less memory? 2) If i'm optimizing with respect to a variable x that must be non-negative, a common approach

Hi, I am trying to use the glmnet package to do some simple feature selection. However, I would ideally like to be able to specify the number of features to return (the glmnet package, as far as I can tell, only allows specification of a regularization parameter, lambda, that in turn returns a model with a specific number of non-zero features). Is there a straightforward way of calculating the

Colleagues, I am trying to read a file written by Fortran. Several lines of the file are pasted below: 101 06e+050280.9777.484208.18147.20.246350.4020.7308717.882600 1 1 101 0.5 00280.9777.484208.18147.20.246350.4020.7308717.882600 0 0 101 1 00280.9777.484208.18147.20.246350.4020.7308717.882600 0 0 101 1.5 00280.9777.484208.18147.20.246350.4020.7308717.882600 0 0 101 2

Hello, I am having a problem with write.fwf in Windows. I wrote a code to ingest a number of text files with weather data in them, process them, and then output a text file with two parts: 1) a set of column names, 2) the processed data table. I wrote and tested the program on my Mac, and it worked fine. However, on the windows machine, where I intend the work to be done, when I run the

Hi, I know how to read fixed width format data with read.fwf, but suddenly I need to read in a large number of old fwf files with 2 types of lines. Lines that begin with "3" in first column carry one set of variables, and lines that begin with "4" carry another set, like this: ? 3A00206546L070049016090045 99 1015002 001001008010004002004007003 001

Hi, I'm having problems using the 'width' aesthetic attribute for the geom_errorbarh. This is the same problem reported earlier here, but I'll try to write the problem more clearly: http://www.mail-archive.com/r-help@r-project.org/msg62371.html The problem I'm having is that, the 'width' attribute is supposed to set the height of the endpoints of the whiskers, and

Hi everyone, my apologies if I'm overlooking something obvious in the documentation. I'm relatively inexperienced with the (awesome) ff package. My goal is to use the read.table.ffdf() function to call the read.fwf() function and pass through the colClasses and comment.char arguments. The code below shows exactly what doesn't work for me. If the colClasses and comment.char

I'm trying to read a data file that contains characters from the Spanish language: > Station <- read.fwf("LosDatos.txt",widths=c(7,7,25,8,8,5),header=FALSE, + skip=3,n=separ[1]-4) Then the R interpreter issues the following message: Error en substring(x, first, last) : invalid multibyte string at '<d1>A, S.' Calls: read.fwf ->

Full_Name: Shigeru Mase Version: R 1.9.1 and 2.0.0 OS: Debian Linux Submission from: (NULL) (219.35.150.115) I tried to read the following text file "test.txt" with 5 lines using read.fwf() function: # comment 1 1234567 # comment 2 1 234567 # comment 3 12345 67 # comment 4 # comment 5 In R 1.9.1, I got the following result (since I have R 2.0.0 installed now I cannot reproduce

# Your mailer is set to "none" (default on Windows), # hence we cannot send the bug report directly from R. # Please copy the bug report (after finishing it) to # your favorite email program and send it to # # r-bugs@r-project.org # ###################################################### Is this intended behavior for the read.fwf(na.strings="-999")? I anticipated that

The Harwell-Boeing format for exchanging matrices is one of those lovely legacy formats that is based on fixed-format Fortran specifications and 80 character records. (Those of you who don't know why they would be 80 characters instead of, say, 60 or 100 can ask one of us old-timers some day and we'll tell you long, boring stories about working with punched cards.) Reading this format

I'm finding that readLines() and read.fwf() take nearly two hours to work through a 3.5 GB file, even when reading in large (100 MB) chunks. The unix command wc by contrast processes the same file in three minutes. Is there a faster way to read files in R? Thanks!

Full_Name: Giovanni Bonafe' Version: 2.2.0 OS: Linux Submission from: (NULL) (195.62.164.225) If the file "example.dat" is like this: aaa bbb ccc 3.4 1.2 5.6 4.6 10 32 667 343 1.7 With the older 1.9.1, as expected: > data<-read.fwf(file = "example.dat",widths=c(3,4,4),header=TRUE) > data aaa bbb ccc 1 3.4 1.2 5.6 2 4.6 10.0 32.0 3 667.0 343.0

Is there a way to handle the widths of values being written to a file using wrtite.fwf() ? For example, I used read.fwf(file, width.vector) to read a file. After making the necessary data manipulation, I want to write the data to a new file in the same width.vector format. Is there a way to specify this? Thanks in Advance Aparna [[alternative HTML version deleted]]

Full_Name: Emmanuel Paradis Version: 2.1.1 OS: Linux Submission from: (NULL) (193.49.41.105) read.fwf(..., header = TRUE) does not work properly since: 1/ the original header is printed on the console and not in FILE; 2/ the different 'parts' of the header should be separated with tabs to work with the call to read.table. Here is a suggested fix for src/library/utils/R/read.fwf.R:

Here is an example of the data I'm reading in using read.fwf: 5342.0 5450.4 0.9200 0.4506 34.7030 27.8411 37.1306 46.0034 0.0000 5438.0 5549.6 0.9300 0.4477-34.7280 27.8616 37.1506 46.0234 0.0000 And the commands I'm using to read it in: widths <- c(7,7,8,8,8,8,8,8,8) filedata <- read.fwf(fileopen, widths,sep="",dec=".") The problem is with

Running R 1.6.1 Linux Slackware 8.1 233MHZ AMD-K6 96MB RAM Using read.fwf, I tried to open a fixed-width file that of about 4 MB residing in the working directory, using the command below: dat<-read.fwf("sc01aai.dat", widths=fields$length) where fields$lengths is a vector of column widths, 28 to be exact. The data are a mix of character, text, and factor variables. R started

Hi there, I am having trouble subsetting a data frame by a conditional via one column (of many). I read the file into R through "read.fwf," where I specified column widths. Original data is .DAT. I then utilized "names" function to read in column headings. For one column, PRVDR_NUM, I wish to further amend the entire data set, but only have PRVDR_NUM == 050108. This is

Hi! I have data (also in attached file) in the following form: num1 num2 num3 int1 fac1 fac2 cha1 cha2 Date POSIXt 1 1 f q 1900-01-01 1900-01-01 01:01:01 2 1.0 1316666.5 2 a g r z 1900-01-01 01:01:01 3 1.5 1188830.5 3 b h s y 1900-01-01 1900-01-01 01:01:01 4 2.0 1271846.3 4 c i t x 1900-01-01 1900-01-01 01:01:01 5 2.5 829737.4 d j u w 1900-01-01 6 3.0