r-statistics - Latest Comments

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Mattijs Ingelbrecht — Wed, 16 May 2012 12:30:04 -0000

Thnx for the great tutorial! One problem ... i can't change my mac address if I use the new drivers ...I tried it with macchanger and with hw ether ... but no luck...

For example:
Current MAC: 00:e0:4c:81:92:00 (Realtek Semiconductor Corp.)
Faked MAC: e4:ce:8f:36:5c:de (unknown)

But my mac isn't changed...

Can you please help me ?

Greetings!

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Dan Green — Thu, 10 May 2012 10:20:32 -0000

UPDATE - Realtek has updated their drivers, I was able to able to download them from Israel. They work on Ubuntu 12.04 LTS

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Geri — Sat, 05 May 2012 07:14:38 -0000

Thanks a lot, it went flawless.

Re: Exporting R output to MS-Word with R2wd (an example session)

Tal Galili — Sat, 05 May 2012 04:23:06 -0000

I'm glad you resolved it :)

Re: Free statistics e-books for download

Alijaved_86 — Fri, 04 May 2012 23:49:52 -0000

i need a G.C beri basic stattistics book :(

Re: Richard Stallman talk+Q&A at the useR! 2010 conference (audio files attached)

Tony — Fri, 04 May 2012 11:03:56 -0000

If you go to a backery and buy a cake, is it unethical if you don't get the recipe as well?
If you buy a radio, is it unethical if you don't get the construction plans for it?
If you buy some software, is it unethical if you don't get the source-code?
If you buy a processor, is it unethical if you don't get the "hardware description language"-description of the processor?

Stallman sees it as an ethical issue. Maby he is ultimately right. I simply don't know.
He's right that sharing is a good thing.
But is it really an ethical issue whether or not you get some recipe, construction plans or source-code??

Re: Exporting R output to MS-Word with R2wd (an example session)

Ptxmp — Fri, 04 May 2012 06:26:25 -0000

Got it!
wdWrite(paste("The sample size is",nrow(data),"."))

Re: Exporting R output to MS-Word with R2wd (an example session)

Ptxmp — Thu, 03 May 2012 07:30:54 -0000

How would you combine text and output in R2wd? I'm particularly interested in how you would for example say something like
wdBody( "The sample size is " nrow(data) ".")

Re: Managing a statistical analysis project – guidelines and best practices

PRG — Thu, 26 Apr 2012 09:22:50 -0000

I've just stumbled across knitr, which is an improvement to Sweave. You might consider adding this as another bullet point under Editing/Reporting...

http://yihui.name/knitr/

It's an [R] package, so I believe that a combination of this and the system() command in R would accomplish what Akhil Behl was attempting to do... all that would be required when moving from one OS to another would be to change the shell commands inside the system() command to reflect the differences.

Re: Speed up your R code using a just-in-time (JIT) compiler

Mufti — Mon, 23 Apr 2012 09:20:26 -0000

Is this R's pypy just like python have pypy with just in time compiler?

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Kd7hgz — Sun, 22 Apr 2012 14:26:22 -0000

This worked great for me! The Realtek drivers seem to be problematic, but thanks to the community for getting a working driver up for 11.10 and a process that a newbie can follow!

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Norio De Sousa — Sat, 21 Apr 2012 05:43:58 -0000

I followed your post - thanks for the step-by-step instructions :) - but it still doesn't work for me. It keeps timing out during authentication. It connects fine if I remove the key but that's obviously not ideal.

Re: Do more with dates and times in R with lubridate 1.1.0

Tom P — Thu, 19 Apr 2012 20:01:04 -0000

My bigger use for with_tz() and force_tz() is handling daylight savings times, which are flagged as timezones. I have instrumentation data in standard time and in local time (automatically switching back & forth to DST).
with_tz() is an easy tool to create gmt (no DST) representations of all instants for merging data frames. [Match-merging on dates with 2 sets of times between 1am and 2am is a bad idea, and R on MSwindows doesn't define a PST timezone.]

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Daniel — Thu, 19 Apr 2012 16:31:10 -0000

Please help!

I need this exact fix but it appears Realtek have taken the file I am looking for down! (3.3.1_3083)

Where can I get this file now? I am seriously desperate

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Tal Galili — Mon, 16 Apr 2012 01:18:02 -0000

My pleasure :)
I'll add the line...

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Mark Whitehead — Sun, 15 Apr 2012 18:49:21 -0000

Spot on walk-through, thanks for posting it up! Using 12.04 Beta and it worked fine with that to.
As mentioned, it might help to add a line saying you need to reboot. Fortunately I remembered the IT Crowd tech support advice :-D

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Mark Whitehead — Sun, 15 Apr 2012 18:45:38 -0000

If system updates are listed as "new install", that effectively overwrites your existing drivers so afterwards you'll have to go through the same process, each time there's a major update. A bit of an overhead, but hey ho!

Re: Speed up your R code using a just-in-time (JIT) compiler

Tal Galili — Thu, 12 Apr 2012 17:06:14 -0000

Great question - I am looking into it these days. When I will have a good answer I will update this post.

Re: Speed up your R code using a just-in-time (JIT) compiler

guest — Wed, 11 Apr 2012 22:32:15 -0000

Echoing abiao here: In a simple test script, I got execution time down by 50%, amazing and indeed too good to be true

Re: Speed up your R code using a just-in-time (JIT) compiler

Tal Galili — Wed, 11 Apr 2012 09:22:08 -0000

Hi Abiao,
Great question. I have posted it here: http://stackoverflow.com/quest...
And will update in case I get any helpful response.

With regards,
Tal

Re: Speed up your R code using a just-in-time (JIT) compiler

abiao — Wed, 11 Apr 2012 05:56:26 -0000

thanks, I've tested my codes by putting require(compiler) enableJIT(3) in the beginning of file, it does speed up, although less than 3* for your case.

Is there any pitfall? it sounds too good to be true, just put one line of code and that's it. Indeed I received a warning: Note: no visible binding for global variable '**', which isn't shown before.

Thanks.

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Cluber22 — Wed, 28 Mar 2012 21:07:17 -0000

Same problem with BT 5 R2. I manage to see the networks in Wicd, I try and connect but doesn't get past auth. After that it doesn't see any networks unless I take USB out of port and put back in again.

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Johnathan Lenfestey — Sat, 24 Mar 2012 01:06:44 -0000

Thanks for this post! Amazing job.

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Logan Kellar — Thu, 22 Mar 2012 01:26:05 -0000

hmm it shows up in ifconfig but doesnt see any networks

Re: Edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)

Logan Kellar — Wed, 21 Mar 2012 06:26:57 -0000

doesn't work for me in backtrack 5 r2 instlal seemed ot have worked but it doesnt show up ;/