Stepfile Arrow Distribution (ermergerd data)

[NuclearShadow]

Didn't know where to post this so I went with this place.

I haven't played in forever but I saw my old pal Dynam0 (sup bruh) still plays so I've been playing the past few days out of nostalgia.

Then I was wondering if the stepfiles we play skew to certain arrows so I used JavaScript to capture only the keys I play on (D,F,K,L) and stored it in a variable. I played for about 30min and played songs in the Dance2 category between 50-80 difficulty.

Not sure if anyone has done this before but below are the results. Clearly the right arrow needs more love guys!



If anyone's a boss and wants to record their results for like an hour two of playing it'd be awesome to see. You can open the console and enter the code below. You'll have to figure out what the keyCodes are for your specific setup but once you do that all you have to do is play and then type "storedData" into the console without the quotes and you'll be able to see the results.

document.addEventListener("keydown", keyDownTextField, false);

var storedData = {
	input: {
		left: 0,
		up: 0,
		down: 0,
		right: 0
	}
};

function keyDownTextField(e) {
  var keyCode = e.keyCode;
  if (keyCode === 68) storedData['input']['left'] += 1
  if (keyCode === 75) storedData['input']['up'] += 1
  if (keyCode === 76) storedData['input']['right'] += 1
  if (keyCode === 70) storedData['input']['down'] += 1
}

[TheSaxRunner05]

Re: Stepfile Arrow Distribution (ermergerd data)



That deviation is slightly more than I would expect

[ilikexd]

Re: Stepfile Arrow Distribution (ermergerd data)

With such a small sample, the left to right difference isn't statistically significant, although I do suspect there will be at most a slight trend due to c1 bass syndrome and L->R planning. Up/down over left/right dominance is predictable since they're easier to hit.

[choof]

Re: Stepfile Arrow Distribution (ermergerd data)

definitely gonna do this with some solo charts
I'll see how bad c1 bass syndrome really is

[NuclearShadow]

Re: Stepfile Arrow Distribution (ermergerd data)

What's c1 bass syndrome?

Yeah I was aiming for 20k total arrows at the very least but I couldn't quite hit the mark Ideally it'd be nice to see the results of 2-3 hours or so of playtime but the songs would have to be recorded that were played and replays avoided since playing the same file would skew the data. I guess if someone were willing to go song by song through Dance 1 and Dance 2 over a week I could have the code write to a cookie instead.

[Dynam0]

Re: Stepfile Arrow Distribution (ermergerd data)

wassup dude?!??!

c1 bass syndrome is where the chart uses primarily the left column to step the bass sounds which usually makes the chart biased to the left arrow.

I know eze and a few others have looked into file biases and it's typically the inner two columns that get more of the density. Left and right might actually normalize over a large sample size but it would be interesting to see.

[iCeCuBEz v2]

Re: Stepfile Arrow Distribution (ermergerd data)

dont play M.A.M.A. it will skew the data to the left !!!

[dell2150]

Re: Stepfile Arrow Distribution (ermergerd data)

Actually did the same thing once I downloaded Whatpulse (over a much larger sample) from both FFR and Stepmania. I found similar results, although L and R do move up a little bit over a larger grouping, I found that U was the most common. I will actually pulse before my session tonight and post results too

Come to think of it, for FFR you can't miss or get any boos (unless they perfectly offset each other, i.e. miss a right, get a boo on right), and on StepMania you can't ghost note at all. It seems like it would be tough to get a perfectly accurate reading for a large base but I'll try my best on StepMania later tonight, probably playing easier things from NBJS and ODI.

[_Zenith_]

Re: Stepfile Arrow Distribution (ermergerd data)

EDIT: I like the graph so far, I would love to see someone (if I could play FFR I'd volunteer) play every song to see the entire graph on FFR.

Keep it going, definitely worth pursuing just to see the results!

[choof]

Re: Stepfile Arrow Distribution (ermergerd data)

What's c1 bass syndrome?

anchoring bass kicks to the left note
it's more blatantly obvious in solo files, specifically the iidx conversions in the bcmps, and some (all) of the hard files that 0 and myself make

[iCeCuBEz v2]

Re: Stepfile Arrow Distribution (ermergerd data)

it really kinda irks me in solo having the bass drum on the left column for every beat starts to feel awkward as fuck for solo

i.e. that one part js part in himiko oni..... those patterns suck

[choof]

Re: Stepfile Arrow Distribution (ermergerd data)

himiko oni is ez nerd

[Reincarnate]

Re: Stepfile Arrow Distribution (ermergerd data)

Why not just use the raw stepchart data and get an aggregate distribution that way? No need to actually record keystrokes or anything like that. Furthermore, you'd be able to see if the distributions change at all if you change certain variables such as difficulty or genre.

[dAnceguy117]

Re: Stepfile Arrow Distribution (ermergerd data)

whoaaaa, NuclearShadow! hey man!

not really relevant to the topic, but are you into programming?

[choof]

Re: Stepfile Arrow Distribution (ermergerd data)

Why not just use the raw stepchart data and get an aggregate distribution that way? No need to actually record keystrokes or anything like that. Furthermore, you'd be able to see if the distributions change at all if you change certain variables such as difficulty or genre.

I think this would only work for stepmania, and not ffr?