search for: fftest

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2010 Dec 24
1
How to specify ff object filepaths when reading a CSV file into a ff data frame.
Hi, The read.csv.ffdf function in package ff will create the ff object physical file in the default directories, I am trying to let the files created in the paths users specify, I think the point is to make use of the asffdf_args parameter, I have a test CSV file named D:\rtemp\fftest.csv, the content of the file is as following: col1,col2,col3 1,"amber",2.4 2,"linda",4.5 I tried the following code, hoping ff will create the physical files for col1,col2 and col3 to D:/a.f,D:/b.f,D:/c.f respectively fdf <- read.csv.ffdf(file="D:/rtemp/fftest.csv&qu...
2012 Sep 12
1
unzipping with ff
...s with ff or am I doing something wrong there? Second, why does ff seem to add .Rdata and .ffData when looking for files but adds no extension when saving them? Code below... library('ff') ffcolTest = ff(c(1:500), vmode = "integer", length = 500, filename = <some folder>\\ffTest') quit() library('ff') ffload("<same path as above>") Error in readChar(con, 5L, useBytes = TRUE) : cannot open the connection In addition: Warning messages: 1: running command 'unzip -Z -1 "<myfile>.ffData"' had status 9 2: In readChar(con, 5L...
2011 Sep 19
1
Force Feedback / Vibration
Hello, I bought a steering wheel for racing games some time ago (a SpeedLink Darkfire). Works great in wine, but no vibration. Actually it works if I use fftest. Just not in wine. I use Ubuntu 11.04, wine 1.3.28 (which is the most recent development version right now). The wheel is connected by USB. Wine also says something about it: Code: fixme:dinput:JoystickWImpl_SendForceFeedbackCommand No direct actuator control in linux I found some things on th...