The Nineteenth Byte

3:01 AM

Anyone here use android? Perhaps you could help me (I'm trying to get started):

0

Q: AVD Manager, why can't I create an AVD?

For some reason, I cannot create an AVD. I went through AVD Manager - Cannot Create Android Virtual Device and attempted the solutions, and I also fiddled with the different settings in the manager, including changing the name to Device. I made sure that the system images are installed, and I fol...

Rusher

@Quincunx Try this command in terminal android-sdk-location/tools/android avd

Stolen shamelessly from stackoverflow.com/questions/22211572/…

Quincunx

@Rusher Wow, it's working, but do you know why I can't check Use Host GPU?

Rusher

HAHAHAH I know absolutely nothing about Android. I just Google better than you

It was literally the first result "create avd ok button"

OH hey @ProgrammerDan. Good timing.

I got R installed, added R to my PATH, downloaded the Gist, got the wrapper into my project with the right name, and don't really know what to do with the .R stuff

ProgrammerDan

3:18 AM

@Rusher, what's up?

Rusher

I have to admit that I am not very good with terminals

ProgrammerDan

:O

what're you struggling with?

Rusher

Well... I have this R code... but where does it <i>go</i>?

really chat? really?

ProgrammerDan

use _

`_go_

go

It goes ... where-ever

what's your operating system?

Rusher

> _go_
Error: unexpected input in "_"
> go
Error: object 'go' not found
> _go
Error: unexpected input in "_"
>

ProgrammerDan

3:21 AM

lol

Rusher

I am talking about the terminal in R

I used Windows 7

ProgrammerDan

right, you don't need to use the terminal directly with R

oh, simple

did you add R to your %PATH% var?

alternatively, replace the invocation line with the absolute path to the Rscript executable

Quincunx

@Rusher Thanks.

Rusher

Here is what my path looks like PATH=C:\WINDOWS;C:\WINDOWS\SYSTEM;%R_BIN%

ProgrammerDan

and what is the current value of %R_BIN%?

also, if you open CMD, can you type R and get an R prompt?

Rusher

3:25 AM

C:\Program Files\R\R-3.0.3\bin

ProgrammerDan

ok cool

Rusher

Ok I deleted R_BIN and my path just has the full path now

ProgrammerDan

so, you should just be able to use the invocation I already have in the wrapper, with one change. Replace "WolfCollectiveMemory.R" with the full path to the R file. If there are spaces in the path to the R file, put it somewhere without spaces.

Any luck?

Rusher

lmao nice error message. Starting WolfCollectiveMemory remote process
WolfCollectiveMemory ended catastrophically.

On debug, this is the path for the .R file. I moved it inside of the netbeans project so I could use a relative path - C:\Users\MYNAME\Documents\NetBeansProjects\Wild\src\animals\WolfCollectiveMemory‌.R

ProgrammerDan

:D :D

You can't use a relative path like that on a process invocation, iirc

undergroundmonorail

3:38 AM

why is the username on your computer "MYNAME"?

Rusher

String path = System.getProperty("user.dir")+"\\src\\animals\\WolfCollectiveMemory.R";

It comes out to the absolute path

ProgrammerDan

That'll get you C:\Users\MYNAME\documents\src\animals\WolfCollectiveMemory.R

Rusher

When I said relative, I meant like it works if you move it

ProgrammerDan

kk

Why not just put all your remote scripts in a known, higher-level path?

like C:\RPI-Wolves\

and just replace the WolfCollectiveMemory.R in this line with C:\RPI-Wolves\WolfCollectiveMemory.R?

Rusher

I don't understand what moving to a higher level path solves, but ok.

ProgrammerDan

3:42 AM

meh I'm not as familiar with Netbeans, so I figure simplifying is best

Rusher

Sorry I missed your question earlier. When I type R in cmd, I don't get an R Prompt

ProgrammerDan

Oh.

You probably installed the 64bit version?

Rusher

yup

ProgrammerDan

ok, add x64 to your path

for R

b/c that's the problem :)

Rusher

How do I do that?

ProgrammerDan

3:49 AM

Shit, I gotta run

but in your System Advanced properties

you can configure your PATH

just add to the R path the x64 string

so it looks at the right executable

Geobits

Control Panel\System and Security\System\Advanced -> Environment Variables... -> Path -> Edit

ProgrammerDan

5:59 AM

@Rusher any luck?

Quincunx

6:21 AM

I had a pleasant conversation on The Tavern (@ meta). I thought I'd share it here (starting point): chat.meta.stackoverflow.com/transcript/message/1952280#1952280

AJ Henderson

@Quincunx like this

luser droog

7:14 AM

After all this futzing with apl, I'm thinking of making an array-calculator challenge. '1 1 1+2 2 2' => '3 3 3'. Just 1-D arrays and basic mathops +-*/^. Right-to-left evaluation of ops.

I still haven't gotten inca to do a jot-dot, but I think I'm almost there. It'll accept the syntax, but it just gives you a row- or column- vector, not a full matrix.

The jot-dot part itself actually works, but I need make the mathops smarter.

The mathops currently treat all arrays as 1-dimensional.

luser droog

7:49 AM

I've also added procedures but not local variables or functions. procedures can interact with global vars only.

Peter Taylor

8:06 AM

@Quincunx You do realise that some people catch up on chat over breakfast?

luser droog

9:59 AM

but, rainbows.

luser droog

10:25 AM

What about a translator into the stick-figure alphabet from Sherlock Holmes?

I never did track down a complete alphabet, yet.

I don't even know what this says, I just copied the pictures from the tv show.

But pictures are always fun. Translators are always fun. You get to come up with encodings and stuff.

ps code: groups.google.com/d/topic/comp.lang.postscript/5U5WnbTZCEY/…

luser droog

10:47 AM

Or royal measurements unit convertor. nb.
1 tun = 2 pipes
1 pipe = 2 hogsheads
1 hogshead = 2 barrels
1 barrel = 2 casks
1 cask = 2 bushels
1 bushel = 2 kennings
1 kenning = 2 pecks
1 peck = 2 gallons
1 gallon = 2 pottles
1 pottle = 2 quarts
1 quart = 2 pints
1 pint = 2 cups
1 cup = 2 gills
1 gill = 2 jacks (<-- jack&jill was a drinking song!)
1 jack = 2 jiggers
1 jigger = 2 mouthfuls
1 mouthful = 4 drams
1 dram = 60 minims

Hm. I think I'll hold that one until I get inca to do base conversions. hehe

Well, them's my pipe dreams. worth about 2 hogheads.

DoorknobChatbot

11:33 AM

New post! stop and restart flashing colors in processing

luser droog

1:27 PM

I like to write Ms. Windows, like it's a wee girlie-girl.

Rusher

3:47 PM

@ProgrammerDan Nope. I can run the R program from cmd line but can't run it from java using the exact same string.

ProgrammerDan

@Rusher I've been doing a lot of testing

the version of @plannapus' program you have won't work, he chews up file pointers like you wouldn't believe

but I fixed it

about to post a new version. As for getting it working for you, let's dive into that

can you post the ProcessBuilder invocation line here?

Rusher

Path to WolfCollectiveMemory.R is C:\WolfCollectiveMemory.R

ProcessBuilder pb = new ProcessBuilder("Rscript C:\\WolfCollectiveMemory.R".split(" "));

ProgrammerDan

and the error message you receive?

Rusher

holy shit it worked

I guess I needed to reboot... because I changed NOTHING today

ProgrammerDan

:D

yeah with the version you have, after about 150 commands or so, the process will fail due to too many file pointers

grab the new gist here gist.github.com/ProgrammerDan/… and you'll be golden

Rusher

3:55 PM

Yea one of them failed to move already

It was that damn Wolf number 25

ProgrammerDan

yeah that's due to the file issue. Basically plannapus was opening a new connection to stdin every program loop

Rusher

Did you edit both files or just the r

ProgrammerDan

and opening a new file connection to his "collectivememory.txt" every command process

just the R

I'm getting to know R a bit -- not the excuse to learn it I was expecting, but okay

Rusher

Huh... his wolves are looking morel lively now

ProgrammerDan

they always just sit there for me :D

but I haven't added any of the other players yet

Rusher

3:57 PM

I meant they are moving faster. Before it was slow

ProgrammerDan

how do you feel about the submissions that subvert the Wolf character?

ahhhh yeah

not reading from a file all the time will help with that -- now all his collective memory is indeed in memory.

Rusher

Sweet. Now I can post results unless another submission was made.

You have been a huge help. Too bad you wiki'd your wrapper

Oh, that's interestinmg

ProgrammerDan

Hehe, not a problem, I still got a badge out of it. And it was fun to write.

Rusher

I modified the controller to loop 5 times for 1000 iterations rather than just "while true"

And now every CollectiveMemory after the first trial fails to initialize (but they are still present and moving on the board lol)

ProgrammerDan

That won't work with my current wrapper...

lol

Rusher

4:02 PM

I'll try to fix it

And I might use this as an excuse to learn github

ProgrammerDan

Goooood

You'll need to explicitly stop the WolfProcess thread, and set the static version of it to null inbetween each "round"

Rusher

Oh, ok. I'll use this as a chance to learn multithreading then

ProgrammerDan

I thought you were going to stop and start the Wild program inbetween each round, I don't currently have any support for "reset", because there are no hooks in the Wolf construct to allow the Wolf to know when the simulation begins or ends

Rusher

I can do that and it would work fine, but programmers are supposed to be lazy

ProgrammerDan

Enjoy :). I make use of them all throughout the wrapper, to handle basically all inter process communication.

Maybe you should add to the Wolf base class a "cleanup" or "reset" method

all submissions with static memory or other things like that will have the same problem, they won't ever restart, and just "continue" -- perhaps with new child Wolves, but the same "shared memory"

Rusher

4:08 PM

Am I right in assuming that after I stop the main thread all of the other threads just die?

ProgrammerDan

Not always

Rusher

Great. Now I have to check my processes to see what garbage is leftover lol

ProgrammerDan

:P

Rusher

Nothing is there. And even more surprising, it doesn't look like the memory for the program is growing at all (and I have all submissions in there)

ProgrammerDan

I think the process will die in this case b/c the STDIN/OUT pipes will get closed when the JVM terminates, and R will exit, gracefully or not

lemme throw a static gracefulReset() into the wrapper for you.

Rusher

4:13 PM

I think I can do it

ProgrammerDan

Cool. Going to submit me a pull request once fixed ? :D

Rusher

Something like that XD

ProgrammerDan

Hehe, awesome.

Rusher

4:28 PM

Hmmm I'm at a weird obstacle. I could just stop your thread in main, but then the main class is basically babysitting the wrapper. Is there a method that gets called when you are garbage collected?

ProgrammerDan

there is, but it's bad to depend on, b/c the GC is tempermental

also, my wrapper isn't leveraging finalize to cleanup, for better or worse

Rusher

Ohhhhh I can't actually run the trial three times in a row. I think that some others may be persisting data as well, and if I don't sanitize the entire thing, they will be misled

Just going to run it five times using 5 fresh copies of the project

ProgrammerDan

Yeah, that's what I was saying above :P

@Rusher any thoughts on the submissions that subvert the 'W' character? legal/not?

Rusher

4:44 PM

Wolf
Only wolves that are submitted as an answer will be included. Represented by 'W'. Moves with any Move. Attacks with any Attack

Not legal

If not because of the spec, then because I said so

Was there another one besides doorknob that I missed? I'm pretty sure he was just joking

ProgramFOX

@Rusher Yes, this one:

This one:

0

A: Survival Game - Create Your Wolf

ChameleonWolf V 1.2 Especially designed to hunt lazy wolfs ;). Working pretty well on sheep too. The idea is moving as collective. When one wolf decide to move all the wolfs moving in the same direction. So If I decide to hunt my self, I will flee. I implemented this using AtomicInteger to suppo...

ProgrammerDan

^^^ that one

ProgramFOX

That randomly chooses which animal.

Rusher

Oh dang. That's a new one. I knew I should have said something, but I thought Doorknob was trolling and I didn't want to spoil his joke

If someone did manage to build a Wolf that could gain an awareness of it's relative location on the map, then they could attack LazyWolf in a sort of pincer movement. LazyWolf is winning btw.

ProgrammerDan

Way to go lazyWolf :D

the new Node.js submission is broken

now I get to learn Node.js -- it's not clear to me that people using my wrapper are actually trying to invoke their programs

b/c if they did, they would find most of their problems just at the command line, using STDIN attached to console

Rusher

4:56 PM

I don't understand how gamblerwolf works

ProgramFOX

Yes. There are a lot of wolves alive, but it is really hard to understand.

ProgrammerDan

GamblerWolf tries to pre-read the next random value from the random number generator

in an attempt to "look ahead" at what the other wolf will choose to pick, in RPS

Not sure the approach will work, but it's damn clever

Rusher

Ah, ok. He's not manipulating anyone else's wolf so that seems fair

Might want to roll a few times to survive that guy lol

ProgrammerDan

:D

Rusher

Now I can't decide between GamblerWolf or GatheringWolf as a favorite

The latter is just so CUTE. He named a variable "loneliness"

ProgrammerDan

5:04 PM

lol

Rusher

5:18 PM

Time to go watch MTG. Got a huge tournament this weekend in Dallas and I need to be prepared

ProgrammerDan

nice, have fun

Geobits

@Rusher Are you officially banning wolves that aren't a 'W'? If so, I'll stop working on a counter to ChameleonWolf. LazyWolf was actually worried about that one.

Gareth

@Rusher Is my Wolf class working okay for you?

When I run it against the opposition it tends to be in the lead for the first 500 moves (while it's in avoid mode) but then it goes downhill relatively quickly from there.

Doorknob

@Geobits Try beating Camo now! :D

Gareth

5:35 PM

@ProgrammerDan My understanding was that he was replacing the PRNG with one that always returns the same value? I'm not a Java coder though, so I may be wrong about that.

Geobits

@Gareth That's what it looked like to me, too, but I didn't test it out much to see if it actually did.

ProgramFOX

@Geobits I tested it, and there were still 99 wolves alive.

And now there were 100 wolves alive.

Geobits

Well, I threw it in my tests, but it doesn't actually win. With all the straight-Java wolves included(beside the Chameleon), my LazyWolf was still winning.

BTW, I modified my version of tester with a flag to show/skip the GUI and just report a sorted list of results to the console. It runs 1000 rounds in a second or two. If anyone's interested, I can post it. It makes testing a hell of a lot faster.

@Doorknob At least in my tests, I had to change exactly nothing to still beat Camo :p

Doorknob

@Geobits Gah! What were the statistics? :P

Geobits

Not an average, but pretty representative results:
> LazyWolf : 58
Sheep : 44
GatheringWolf : 18
CamoWolf : 17
EmoWolf : 12
Wion : 6
GamblerWolf : 5
WolfWithoutFear : 3
Bear : 1
Lion : 1
Stone : 0

Doorknob

5:50 PM

Lol, some did worse than EmoWolf? O_o

Wait, how does that even work? Shouldn't EmoWolf have 0?

Gareth

Is CamoWolf going to be included since it's bending the rules somewhat? I just want to know whether I should include it in my tests. :-\

Geobits

Sheep is the only one I've seen beat me lately, about 5-10% of the time. I need to work on getting the non-Java entries in.

Doorknob

Also, is thinking of more strategy to survive

Geobits

@Doorknob Emo only kills itself if it gets to attack. The survivors must have just not been stepped on.

Doorknob

@Geobits Ha. So perhaps not moving unless absolutely necessary is a good idea :D

Geobits

5:51 PM

My LazyWolf agrees.

Doorknob

@Gareth No idea, we'll need @Rusher to clarify that. But Lazy, Sheep, and Gathering are all beating me anyway. :P

Geobits

Well, Lazy and Sheep are pretty consistently in #1-2, but the others fluctuate a lot.

Gareth

@Doorknob My wolf relies on there being a lot of opponents killing each other and the rest of the opposition during the first 500 turns. I do better in my tests when Camo and Chameleon are both in the game.

Rusher

@Gareth No. And neither will the other one that modified his letter.

Gareth

@Rusher Are we allowed more than one entry?

Doorknob

5:57 PM

@Rusher Why not? It's not against the rules. (The other one is, since it doesn't fit the required code format, but mine does.)

Rusher

@Doorknob Read the spec again.

Doorknob

@Rusher Ok, I did. It says that all 'W's will be user submissions, but it never says all user submissions will be 'W's.

Rusher

It says all wolves will be 'W'. Did you submit something besides a wolf?

Geobits

Can I enter another wolf who only attacks wolves that move(shamelessly boosting Lazy in the process) ? Feels kinda cheap, but...

Doorknob

@Rusher No, I submitted a wolf with camouflage. :D

Rusher

6:03 PM

Despite this being sandboxed for nearly three weeks, I didn't really have time to think of all the corner cases you guys could create, because I am not as smart as 8 of you. I am invoking the don't be a jerk rule and saying that 1) You can't change your letter and 2) If you submit a Wolf that intentionally boosts another Wolf, you'll just be excluded.

Also, @Gareth, I barely got the R submission working and haven't had time to learn how to include yours. I promise I'll work on it this week.

Doorknob

@Rusher Neither of those are in the rules, however. And what about wolves that specifically hunt down other wolves? For example, if someone created a LazyWolfHunter that attacks every wolf it sees.

Geobits

@Rusher Cool. Just trying to clarify before I work on another one is all. I don't want to get it done and then find out it's banned.

Gareth

@Rusher No problem. If you have any difficulties with it let me know.

Rusher

@Doorknob If you have a suggestion, I'm all ears. If you only have problems, I don't really care.

Doorknob

@Rusher I'm replying to your message. None of those things were disallowed in the rules. And bending the rules is part of the fun of the site.

Rusher

6:58 PM

@Doorknob Proof: Assume Wolves are represented by 'W'. Your Wolf is not represented by 'W'. Therefore, you are not a Wolf.

ProgrammerDan

8:12 PM

@Gareth @Geobits You guys are correct about the Gambler Wolf. I didn't look close enough at what was going on, but you both nailed it :)

Jason C

8:33 PM

@PeterTaylor I'm going over that link you posted (stats.stackexchange.com/questions/15979/…) trying to improve that query (data.stackexchange.com/codegolf/query/180833/tag-love). My interpretation of the issue with Evan Millers' approach is that the lower bound is unrealistically low for items with small rating counts; and that's the primary issue -- correct?

vzn

9:50 PM

hello again golfdudes

undergroundmonorail

hey

vzn

whats new

undergroundmonorail

not a whole hell of a lot

Peter Taylor

@luserdroog "The alphabet as given is not complete"

@ProgrammerDan The real Java solution to this would be to use a different classloader for each trial...

vzn

so, anyway, prob spent 30m last time chatting with doorknob re his campaign & whether he could lead/motivate anyone to vote for it....

think there was about +1 after, what, some days? so "results" are in, ok!

4

A: Community Promotion Ads - 2014

its that magic of se collaboration/teamwork live in action! :p

Peter Taylor

10:03 PM

@JasonC My interpretation of the issue is that it's like using a hammer to drive screws or a screwdriver to drive hammers: just the wrong tool for the job.

2

vzn

> if you have a hammer everything begins to look like a nail —anonymous :)

se ofc the ultimate hammer :\

Jason C

@PeterTaylor Thanks!

@vzn Or everything begins to look like ham.

Mmmmm...

vzn

mmm, bacon, delicious :)

←recently tried to buy unicoins with bacon, didnt work out :(

ps the se dataexplorer/datamining challenges are way cool, keep up good work :)