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Simulation Racing Leagues => Assetto Corsa => Australian Assetto Corsa League, Tuesday nights => Topic started by: Wally on November 09, 2014, 09:27:39 AM

Title: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 09, 2014, 09:27:39 AM
In the first round, everyone will drive the McLaren MP4-12C GT3. The main race will be 24 laps.

FYI, The McLaren can do 13.6 laps on a full tank.
A few timings for you: It takes about 10 seconds to fill the tank from empty in a pit stop. They can change your tyres for you in that 10 seconds as well, so it doesn't take any extra time to change tyres.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Tom on November 09, 2014, 09:51:04 AM
Ah damn, i'll have to miss this first round as i'm out of town for work that week
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Gratulin on November 09, 2014, 10:56:29 AM
Is Bacchulum's 1:36 RSR world record really the target laptime for this race?
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 09, 2014, 11:46:24 AM
Ah damn, i'll have to miss this first round as i'm out of town for work that week
No worries Tom.

Is Bacchulum's 1:36 RSR world record really the target laptime for this race?
No, the real mark is more around 1:45.x.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Freezer on November 09, 2014, 09:32:54 PM
Regarding Pit Stops:
I watched a few You tube videos and it would seem you don't initiate a pit stop out on track, but rather pull in and there is an options screen that pops up once you stop where you can make your choices.  So I assume making your selections quickly will save you some time.
Secondly, are there pit lane speed limits?  and/or a speed limiter button?
This will be a first so it would pay for everyone to be up to speed on the process.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 09, 2014, 09:48:23 PM
Exactly. You just drive into pits, a pit speed limiter is automatically applied. You cannot speed in pits. There is a white pit box, clearly visible, that you must stop in. A pop up menu appears, where you can choose what to do with tyres, fuel and repairs. You click an apply button, then you can go after 10 seconds (unless you do repairs, which takes longer). Again, you don't have to watch your speed on the way out.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Freezer on November 09, 2014, 10:17:02 PM
Exactly. You just drive into pits, a pit speed limiter is automatically applied. You cannot speed in pits. There is a white pit box, clearly visible, that you must stop in. A pop up menu appears, where you can choose what to do with tyres, fuel and repairs. You click an apply button, then you can go after 10 seconds (unless you do repairs, which takes longer). Again, you don't have to watch your speed on the way out.
Sounds simple.....thanks Wally!
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 09, 2014, 10:22:41 PM
Yeah, it's still fairly simplistic. You can't pre-set a fuel strategy, for example. It's easiest to just click the Fill button. But thankfully, unlike rFactor, damage repair isn't on by default!
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: StanDaam on November 10, 2014, 09:11:33 AM
Is Bacchulum's 1:36 RSR world record really the target laptime for this race?
No, the real mark is more around 1:45.x.

Cheers for that Wally, I was wondering where I was going to find that extra 9 seconds or so... :D
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Bacchulum on November 11, 2014, 05:36:53 PM
I have no idea where I found it!?! :o ??? :-[
I certainly haven't actually done a lap that quick.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Bacchulum on November 11, 2014, 05:56:05 PM
Here's my McLaren:
http://www.mediafire.com/download/g6nz51dvus40cbo/Aleph0_37_MP4-12c_GT3.7z (http://www.mediafire.com/download/g6nz51dvus40cbo/Aleph0_37_MP4-12c_GT3.7z)

I'm pretty sure I packed to install in the main directory, a'la Dick skins (since he learnt how ;))
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 12, 2014, 06:08:01 PM
Flattop is in for Tom.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Bruce on November 13, 2014, 08:07:36 AM
Flattop is in for Tom.
Thanks Wally now I just need to find 10 seconds ;D
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Bacchulum on November 14, 2014, 05:15:26 PM
Is there anyway of changing fuel multiplier offline?
All I can find is consumption on/off. ???
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 14, 2014, 05:24:51 PM
Is there anyway of changing fuel multiplier offline?
All I can find is consumption on/off. ???

Yes. Edit race.ini, from memory. I think you set fuel rate to 3 in that file.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: gawaterman on November 14, 2014, 06:12:05 PM
Is that race.ini or racer.ini?
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Bacchulum on November 14, 2014, 06:43:59 PM
Is there anyway of changing fuel multiplier offline?
All I can find is consumption on/off. ???

Yes. Edit race.ini, from memory. I think you set fuel rate to 3 in that file.
Sorry, but where is the race.ini? :-[
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Bacchulum on November 16, 2014, 02:04:30 PM
Back to where I belong on the rank, #418.
It felt strange being an alien.... ??? :P
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: marty on November 17, 2014, 05:06:39 PM
I did notice one thing with the race log when running a race with a pitstop, its kind of screws up the average lap time which will be quite high due to the in and out lap being quite slow and also lap 1 always has skewed these results a bit. For season stats Wally maybe you will need to exclude the 3 slowest laps from being used on the longer race if people are 1 stopping.

Here is an example of a practice race I ran which says 68% of laps were within 6.84 seconds.

(http://www.mediafire.com/convkey/2979/94y13r2ba59fxau4g.jpg) (http://www.mediafire.com/view/94y13r2ba59fxau/test.JPG)

But seeing as there was only 2 seconds between 21 of the 24 laps which would be 85% of laps within 2 seconds in my calculation it still doesnt make sense even if counting all laps. I actually never understood how that figure is worked out.  ;)
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 17, 2014, 05:42:25 PM
Good point Marty. I'll see what the log file looks like when we actually do some pitstops. I could display what lap a pitstop was.

Google "standard deviation".
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: cramjet on November 17, 2014, 06:13:32 PM
Sorry, Wally, but I'll have to miss this round. The joys of family business  >:( I'll be there next week for sure!
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 17, 2014, 06:31:43 PM
Sorry, Wally, but I'll have to miss this round. The joys of family business  >:( I'll be there next week for sure!
Sack the family, I say. No worries, I'll tee up a reserve.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: marty on November 17, 2014, 06:55:03 PM
Good point Marty. I'll see what the log file looks like when we actually do some pitstops. I could display what lap a pitstop was.

Google "standard deviation".

Quote
Basic examples

For a finite set of numbers, the standard deviation is found by taking the square root of the average of the squared differences of the values from their average value. For example, consider a population consisting of the following eight values:

    2,\ 4,\ 4,\ 4,\ 5,\ 5,\ 7,\ 9.

These eight data points have the mean (average) of 5:

    \frac{2 + 4 + 4 + 4 + 5 + 5 + 7 + 9}{8} = 5.

First, calculate the difference of each data point from the mean, and square the result of each:

    \begin{array}{lll} (2-5)^2 = (-3)^2 = 9 && (5-5)^2 = 0^2 = 0 \\ (4-5)^2 = (-1)^2 = 1 && (5-5)^2 = 0^2 = 0 \\ (4-5)^2 = (-1)^2 = 1 && (7-5)^2 = 2^2 = 4 \\ (4-5)^2 = (-1)^2 = 1 && (9-5)^2 = 4^2 = 16. \\ \end{array}

Next, calculate the mean of these values, and take the square root:

    \sqrt{ \frac{9 + 1 + 1 + 1 + 0 + 0 + 4 + 16}{8} } = 2.

This quantity is the population standard deviation, and is equal to the square root of the variance. This formula is valid only if the eight values we began with form the complete population. If the values instead were a random sample drawn from some larger parent population, then we would have divided by 7 (which is n−1) instead of 8 (which is n) in the denominator of the last formula, and then the quantity thus obtained would be called the sample standard deviation. Dividing by n−1 gives a better estimate of the population standard deviation than dividing by n[citation needed].

As a slightly more complicated real-life example, the average height for adult men in the United States is about 70 inches, with a standard deviation of around 3 inches. This means that most men (about 68 percent, assuming a normal distribution) have a height within 3 inches of the mean (67–73 inches)  – one standard deviation – and almost all men (about 95%) have a height within 6 inches of the mean (64–76 inches) – two standard deviations. If the standard deviation were zero, then all men would be exactly 70 inches tall. If the standard deviation were 20 inches, then men would have much more variable heights, with a typical range of about 50–90 inches. Three standard deviations account for 99.7 percent of the sample population being studied, assuming the distribution is normal (bell-shaped).
Definition of population values

Let X be a random variable with mean value μ:

    \operatorname{E}[X] = \mu.\,\!

Here the operator E denotes the average or expected value of X. Then the standard deviation of X is the quantity

    \begin{align} \sigma & = \sqrt{\operatorname E[(X - \mu)^2]}\\ & =\sqrt{\operatorname E[X^2] + \operatorname E[(-2 \mu X)] + \operatorname E[\mu^2]} =\sqrt{\operatorname E[X^2] -2 \mu \operatorname E[X] + \mu^2}\\ &=\sqrt{\operatorname E[X^2] -2 \mu^2 + \mu^2} =\sqrt{\operatorname E[X^2] - \mu^2}\\ & =\sqrt{\operatorname E[X^2]-(\operatorname E[X])^2} \end{align}

Now its clearer then mud thanks Wally, still think the first lap and in and out laps for a pitstop totally screw with the lap consistency charts. They are 3 laps where you are stationary and the first lap time will be longer for anyone further down the grid then those up front so it really isnt a great lap to include in the stat.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 17, 2014, 07:43:17 PM
Here you go:

(https://tusdstats.tusd1.org/planning/resources/dr_gregg/norms2/curve2.jpg)

The peak of the graph is your average lap time. One standard deviation on either side of the average is the blue area. The smaller the standard deviation, the closer bunched your times are (the peak is narrower). The bigger the standard deviation, the more spread out your times are (the peak is wider). You're welcome ;)

Anyway, yeah, I'll get rid of the outlier laps. I already don't count your slower start lap.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 17, 2014, 08:55:55 PM
Bugger, the server doesn't output any pitstop information whatsoever.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 18, 2014, 08:15:20 AM
Don't forget to download McLaren skins for tonight from the skins thread!
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Bird on November 18, 2014, 08:59:02 AM
The average lap will still be truthfully the average lap.  That is the average laptime over the length of the race. 
The only place where it'll be a bit funny is the consistency.  Even then, only where some people may have shorter, others longer stops.

It maybe an idea not to put any weight on consistency this season - i.e. I'd not hand out bonus points for it :)  Otherwise it's fine.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: marty on November 18, 2014, 09:02:35 AM
Bugger, the server doesn't output any pitstop information whatsoever.

Would be nice if it registered when a car enters the pitlane and exits also stationary time, that way you could force pitstops even without higher fuel use on shorter races. A server option to force stops and tyre change would be nice if you forced people to run 2 different compounds.

Also well worth people practicing some pitstops before the race as its a little clunky as is. Take note if you want to change tyres you need to press one of the tyre options and illuminate your choice. If you dont see the tyre change animation it means they havent changed your tyres. Also with fuel you need to click how much to add then press fill.

You can only practice pitstops in a mp server during a race, if you jump into an empty server you can vote to go to next session and start a race to practice them.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 18, 2014, 09:58:54 AM
M8R is in for cramjet.

The consistency is just for interest; there are no points attached.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Guybrush Threepwood on November 18, 2014, 01:26:33 PM
The allocation of cars is based on the fastest race lap isn't it?
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 18, 2014, 01:32:34 PM
The allocation of cars is based on the fastest race lap isn't it?
Yes, averaged from both races.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 18, 2014, 06:17:26 PM
Server is up!
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Matthew111 on November 18, 2014, 06:49:36 PM
Do we keep the edited file for the race tonight, or will the server be setup for it?
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 18, 2014, 07:13:47 PM
Do we keep the edited file for the race tonight, or will the server be setup for it?

What edited file do you mean?
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Matthew111 on November 18, 2014, 07:28:26 PM
sorry for the x3 fuel consumption
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 18, 2014, 07:49:26 PM
sorry for the x3 fuel consumption

Gotcha. No, the fuel is set only by the server now. It ignores your offline file.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Bird on November 18, 2014, 10:14:49 PM
Well, I haven't warmed up to these cars much (at all). 

The first race I had been in an accident and bent every part of the car, it was rather funny to drive sideways and didn't like to turn one way too much.

The next race I've been running ok, but the pit was completely screwed up.  I had gone in twice, the first time I've clicked everything but nothing had been changed, and once the menu disappeared I've started going just to find out that I've no fuel...went back in the second time, did the same sequence (I thought) but this time the tyre didn't get changed.   I didn't go back the third time, just drove the distance on used tyres, they weren't awfully bad.

I don't know I run 3s off the pace, that was just abysmal.  :(
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Aiman Haziq on November 18, 2014, 11:30:16 PM
Good race , sad about the 1st race as i was having internet ping problem that i had to retire in middle of the race. Couldve been great race with Guybrush and Marty.
2nd race had great fight between Matthew11 as he was sticking to my rear until i pitted. After that it was a drive till finish line.
Hope to have good constant internet connection for next race.

(http://i516.photobucket.com/albums/u324/skylinz/2014-11-18_00012_zps827da3c9.jpg)
(http://i516.photobucket.com/albums/u324/skylinz/2014-11-18_00013_zps9ead838c.jpg)
(http://i516.photobucket.com/albums/u324/skylinz/2014-11-18_00007_zps2cbb57f1.jpg)
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 19, 2014, 12:11:02 AM
That is a busy field!
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Bruce on November 19, 2014, 07:59:40 AM
Wow! Great pics it is hard to believe it is sim screen shot.  Sorry fur the tap Shmittez in race 1 and GW in race 2 just poor driving on my part.
Well even it I'm down the back over alk very pleased with my race last night.
No damage and I hope consistent when I check the times.  But I will put a skin together it adds to the immersion.
My eyes were very sore by the end of race 2.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Dick Forrest on November 19, 2014, 08:57:21 AM
Man... Not one Hello Kitty to be seen.
  You guys are so serious!!
Looks like it was a fairly good night yeah? and pretty close racing for 45 minutes? or did you get a bit strung apart?

Anybody have a successful pit strategy? Did Gratulin come 10th? Anyone fall asleep? Rage quit?
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Wally on November 19, 2014, 10:29:13 AM
It spread out as the race progressed, but with 24 cars on track, there were groups of cars here and there.

Gratulin had had enough half way through the long race. The most interesting thing   strategy-wise seems to have been tyre choice. With a mix of cars next week, I expect to see some different pit strategies.
Title: Re: S4R1: Imola race chat (Nov 18)
Post by: Guybrush Threepwood on November 19, 2014, 02:30:26 PM
A good night of racing.

Race 1 was fairly close between Aiman, Marty and I and then Aiman had some connection issues.  I then tried to hold a gap to Marty which worked out fairly well for a fairly regulation finish and race.

Qual 2 I crashed on my first fast lap and damaged my car and so had to continue and try to do another fast lap with a damaged car so ended up starting around 4th or 5th.

Race 2 I hung onto the leading pack of Aiman, Matthew and Ed Wood for a few laps until I spun and went down to around 10th or 11th.  Must have been a banana skin that Ed threw out the back of his car.  Anyway, had an interesting race coming back through the pack and toward the end caught back up to Ed, but then got a bit sideways coming out of the chicane and lost some time.  Thankfully I didn't have any traffic this time so was able to put in a hot lap to catch up to him and overtake him on the final lap to grab second.

It would have been interesting to see what would have happened if I didn't spin as I think there would have been some close racing with Aiman.

I like Imola as a track, but it's not one of my best - hard for me to be consistent.  So all things considered I think I escaped with damage limitation.
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