similar to: seq() function accuracy inacceptable (PR#8779)

> The seq-command produces unnescessary inaccurate results, which can be extremely > annoying. I absolutely do not see the nescessity of numerical garbage > to appear in the following simple case. E.g. try this: > > seq ( 61.55 , 62.00 , by=0.01 ) - round ( seq ( 61.55 , 62.00 , by=0.01 ) , > digits=2 ) An even simpler case may help explain why this is not *unnecessary*

Hello, What would be the best set of R functions to parse and transform a file? My file looks as shown below. I would like to plot this data and I need to parse it into a single data frame that sorts of "transposes the data" with the following structure: > df <- data.frame(n=c(1,1,2,2),iter=c(1,2,1,2),step=as.factor(c('Step 1', 'Step2', 'Step 1',

Hello developers, I recently participated in a public listening test that was held by German magazine c't. They had two categories, 64 kbps and 128 kbps. I only participated in the 64 kbps test where there were 7 .wav files, with 1 of them the original one and the other 6 being encoded with different encoders. Without knowing which file was encoded with which encoder you had to give each

Dear group, I have 3 data frames I would like to merge. Here they are: pose16 <- structure(list(DESCRIPTION = structure(c(1L, 2L, 3L, 4L, 5L, 6L, 7L, 8L, 9L, 12L), .Label = c("COPPER May/10", "COTTON NO.2 Jul/10", "CRUDE OIL miNY May/10", "GOLD Jun/10", "ROBUSTA COFFEE (10) Jul/10", "SOYBEANS Jul/10", "SUGAR NO.11

Update: Grand Prix 4 plays almost flawlessly with Catalyst 10.6 and WINE 1.2rc3.. HOWEVER, over the past few releases of WINE (audio work), I've noticed that partly through the playback of Grand Prix 4, the audio suddenly stops. Prior to 1.2rc3, Grand Prix 4 used to crash shortly thereafter. However, since WINE 1.2rc3, after the audio stops, Grand Prix 4 continues without crashing ... just

hi! i'm quite new in R and i don't understand why this statement doesn't work: > mode(mensuel$VARIANCE.PRIX) [1] "numeric" > storage.mode(mensuel$VARIANCE.PRIX) [1] "integer" > mean(mensuel$VARIANCE.PRIX) [1] NA Warning message: argument is not numeric or logical: returning NA in: mean.default(mensuel$VARIANCE.PRIX) Thanks for help!

Dear group, Here is my df: avprix <- structure(list(DESCRIPTION = c("CORN Jul/10", "CORN May/10", "ROBUSTA COFFEE (10) Jul/10", "SOYBEANS Jul/10", "SPCL HIGH GRADE ZINC USD", "STANDARD LEAD USD"), prix = c(-1.5, -1082, 11084, 1983.5, -2464, -118), quantity = c(0, -3, 8, 2, -1, 0), fees = c(-8.64, -30.24, -26.4, -25.92, -37.5,

Dear group, I need to modify some characters in a data frame. I want to use gsub and the regex functionalities to do this. Here is the data frame (df): DESCRIPTION prix quantity 1 CORN Jul/10 -1.5 0 2 CORN May/10 -1082.0 -3 3 ROBUSTA COFFEE (10) Jul/10 11084.0 8 4 SOYBEANS Jul/10 1983.5

Dear group, Here is my function: #return the daily PL for day y PLDaily<-function(x,y) { #find elements in my directory with "LSCPos" in the name, keep the numeric part in the name and #create a list l<-gsub("\\D","",dir()[grep("LSCPos",dir())]) #select in the list the desired elements

Dear group, Here is my df : df3 <- structure(list(DESCRIPTION = c("COPPER May/10", "COTTON NO.2 Jul/10", "CRUDE OIL miNY May/10", "GOLD Jun/10", "ROBUSTA COFFEE (10) Jul/10", "SOYBEANS Jul/10", "SUGAR NO.11 Jul/10", "SUGAR NO.11 May/10", "WHEAT Jul/10", "SPCL HIGH GRADE ZINC USD",

Dear list, here are my two data frames: av <- structure(list(DESCRIPTION = c("COFFEE C Sep/10", "COPPER Sep/10", "CORN Dec/10", "CRUDE OIL miNY Sep/10", "GOLD Aug/10", "HENRY HUB NATURAL GAS Sep/10", "PALLADIUM Sep/10", "SILVER Sep/10", "SOYBEANS Nov/10", "SPCL HIGH GRADE ZINC USD", "SUGAR

Full_Name: Johannes Prix Version: 2.3.1/2.3.0 not 2.1.1 OS: Windows XP Service Pack 2 Build 2600.xpsp_sp2_gdr.0503011519 Submission from: (NULL) (137.208.41.103) In a vanilla R, version 2.3.1 or version 2.3.0 the following crashes: system("gzip.exe") where I did nothing, prior to this command, but change the directory to my other working directory where there's gzip.exe. Same

Grand Prix 4 doesn't install completely, i.e. the installation terminates just at the end of the process which might be due to the msi installer. Links 2003 installs, but aborts in the early stages of boot which might be due to copy protection, e.g. SafeDisc.

wine dxdiag.exe spews a few fixme messages (Related to ALSA drivers) and then exits. No Window, no error messages. Till now, this wasn't a problem (several games ran fine) but when I tried installing a legacy game (Grand Prix World by Microprose), it could not detect my graphics card. Tried DxDiag but it isnt working. Any help will be much appreciated, thanks.

Dear group, Here is my df : pose16 <- structure(list(DESCRIPTION = structure(c(1L, 2L, 3L, 4L, 5L, 6L, 7L, 8L, 9L, 12L), .Label = c("COPPER May/10", "COTTON NO.2 Jul/10", "CRUDE OIL miNY May/10", "GOLD Jun/10", "ROBUSTA COFFEE (10) Jul/10", "SOYBEANS Jul/10", "SUGAR NO.11 Jul/10", "SUGAR NO.11 May/10",

Hi, All: What tools exist for diagnosing singular gradient problems with 'nls'? Consider the following toy example: DF1 <- data.frame(y=1:9, one=rep(1,9)) nlsToyProblem <- nls(y~(a+2*b)*one, DF1, start=list(a=1, b=1), control=nls.control(warnOnly=TRUE)) Error in nlsModel(formula, mf, start, wts) : singular gradient matrix at initial

I am trying to run Grand Prix legends, more specifically the 2004 Demo (http://www.bhmotorsports.com/GPL/downloads/3239) I could install the demo using wine but when I launch it, forcing it in a 1024x768 windows, a blue screen opened then closed, no error messages. I found an old howto (http://www.zefix.tv/linux_wine_racing_simulations/GrandPrixLegends) but I still couldn't figure it out. I

Hello, i installed Cs 1.6 on ubuntu 10.04 using wine. But i have one problem. When i play game, after 5-10 minutes my sound in game suddenly turns off. And i need to restart cs to solve this problem. Can you help me with this. Also i have fps about 50. Can i get it up to 70 [Rolling Eyes] :) My configuration Asus P5K Intel Core2Duo E6550 2.33 GHz Nvidia 8600GT 256MB Kingston 2GB [Laughing]

The errors generated by a debug log when attempting to run Links 2003 v 1.02 with v 1.02 noCD patch: err:ddraw:PixelFormat_WineD3DtoDD Can't translate this Pixelformat 62 err:ddraw:PixelFormat_WineD3DtoDD Can't translate this Pixelformat 63 err:ddraw:PixelFormat_WineD3DtoDD Can't translate this Pixelformat 64 err:ddraw:PixelFormat_WineD3DtoDD Can't translate this Pixelformat 62

My simple functions were to compare the result with the gfortran compiler sum() function. I thought that the Fortran sum could not be less precise than R. I was wrong. I am impressed. The R sum does in fact match the result if we use the Kahan algorithm. P. I am glad to see that R sum() is more accurate than the gfortran compiler sum. On 16/03/18 11:37 AM, luke-tierney at uiowa.edu wrote: