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» Did the programming thread get deleted (theory816)?
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post 1695936863 01-05-2024, 08:26 PM
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Did the programming thread get deleted (theory816)?

Tf eh?

Anyway, I thought it was an interesting subject and welcome everyone to keep contributing here.

I've been working in industrial maintenance for the past 6 months and the whole process of getting a series of machines to work together to accomplish a task (actually 100s of little tasks organized toward an outcome) is insanely interesting. Limit switches, photoeyes all reporting back, PLC firing commands based on info. I'm considering getting in the PLC side.
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post 1695937253 01-05-2024, 08:35 PM
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Fast misc...
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post 1695937373 01-05-2024, 08:38 PM
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Yes

To answer the question:

Probably analyze the distribution of the length data and place your medium size at the mean. Then the question is what is the opportunity cost of providing two extra sizes in production. It boils down to your best seller being the mean value and then assigning values to the distribution above and below the mean. You can group these remaining data points and their assigned value by the remaining size options and determine if offering option 2 yields more value than option 1.
post 1695937423 01-05-2024, 08:39 PM
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I deleted it because it was a srs thread but they kept on taking it off topic.
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post 1695937463 01-05-2024, 08:41 PM
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Originally Posted By BDub85
Yes

To answer the question:

Probably analyze the distribution of the length data and place your medium size at the mean. Then the question is what is the opportunity cost of providing two extra sizes in production. It boils down to your best seller being the mean value and then assigning values to the distribution above and below the mean. You can group these remaining data points and their assigned value by the remaining size options and determine if offering option 2 yields more value than option 1.
delet this
post 1695938973 01-05-2024, 09:26 PM
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Originally Posted By BDub85
Yes

To answer the question:

Probably analyze the distribution of the length data and place your medium size at the mean. Then the question is what is the opportunity cost of providing two extra sizes in production. It boils down to your best seller being the mean value and then assigning values to the distribution above and below the mean. You can group these remaining data points and their assigned value by the remaining size options and determine if offering option 2 yields more value than option 1.
Waaaaaaat?
Originally Posted By theory816
I deleted it because it was a srs thread but they kept on taking it off topic.
Twas just getting good man.
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post 1695939063 01-05-2024, 09:28 PM
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Originally Posted By -JR
I'm considering getting in the PLC side.
friend of mine, in his mid-30th took PLC courses and started working. Like real plc programming, commissioning and such. He loves it. But I overheard from his talk, his enumeration is 50k-some. Not good. I understand he is still junior (not sure how it works) but still low. Job that requires a lot of marbles and patience, with lousy pay.
post 1695941923 01-05-2024, 10:46 PM
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Originally Posted By skier!
theory816 is a tard

but here it is:

You have a sample of 200,000 lengths of dogs paws (1 dimension for simplicity).

option1: S, M, L
option2: XS, S, M, L XL

You are starting a company that is going to make dog booties. How would you decide on whether to implement option 1 or 2?

If you make assumptions, state them here in your answer
Talk about the data and what you are assuming as well

This is a FAANG Question I got, I got to the end at a few companies
I'd answer that it'd be straight up irresponsible to make such a decision based on such limited data. Srs. I mean, you can start making assumptions all day and provide an answer but they'd be too large IMO. The first one would be that the expected conversion rate is identical or at least very close to the distribution of dog paw lengths (if that's not the case then the dog paw length data is basically worthless). That alone seems like a pretty bad assumption to make. I wouldn't be surprised if chihuahua owners are way more likely to buy stupid chit like dog booties, and if you look at human clothes as an example you can usually get away with selling all sizes for the same prize, so with XS booties you could save some $ on materials and make a larger profit on each sale.

I get that such a vague question is meant to allow you to prove you're knowledgeable and capable of analyzing a problem from several angles but meh, I don't like it, just ask me to find the second largest int in a binary tree or something.
post 1695942503 01-05-2024, 10:57 PM
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Originally Posted By theory816
I deleted it because it was a srs thread but they kept on taking it off topic.
Did you take any computer programming courses during your short stint at the prestigious Community College you were attending?
post 1695942573 01-05-2024, 10:58 PM
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Originally Posted By adimare
I'd answer that it'd be straight up irresponsible to make such a decision based on such limited data. Srs. I mean, you can start making assumptions all day and provide an answer but they'd be too large IMO. The first one would be that the expected conversion rate is identical or at least very close to the distribution of dog paw lengths (if that's not the case then the dog paw length data is basically worthless). That alone seems like a pretty bad assumption to make. I wouldn't be surprised if chihuahua owners are way more likely to buy stupid chit like dog booties, and if you look at human clothes as an example you can usually get away with selling all sizes for the same prize, so with XS booties you could save some $ on materials and make a larger profit on each sale.

I get that such a vague question is meant to allow you to prove you're knowledgeable and capable of analyzing a problem from several angles but meh, I don't like it, just ask me to find the second largest int in a binary tree or something.
An answer like this would probably impress them on a leadership and decision making level. Although maybe not since metrics and kpis are all some companies give a chit about regardless of what is actually going on LMAO.
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post 1695965513 01-06-2024, 12:51 PM
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Originally Posted By skier!
This was for a machine learning interview. Going to start this by talking about the data since I doubt you guys are statisticians.

They want you to talk / think outloud to them as you solve. So start by asking the interviewer:

1) How was the data collected? Was it a random sample? What was the sampling method(s) used?
2) Are lengths the only data point collected? Do we know breed?

More you can ask but I will stop here
Clearly only XL because these are misc dogs and they have 10 inch dog penises.
post 1695966283 01-06-2024, 01:06 PM
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Originally Posted By skier!
theory816 is a tard

but here it is:

You have a sample of 200,000 lengths of dogs paws (1 dimension for simplicity).

option1: S, M, L
option2: XS, S, M, L XL

You are starting a company that is going to make dog booties. How would you decide on whether to implement option 1 or 2?

If you make assumptions, state them here in your answer
Talk about the data and what you are assuming as well

This is a FAANG Question I got, I got to the end at a few companies
I think have a list of "random" ( what does that even mean? ) dog paws is useless. First of all your are not trying to sell to dogs, you are trying to sell to people. So the problem here is which of the options would sell better?
With humans we know that the shoe must fit perfectly, with dogs it's not such a huge deal. Do people want to choose quickly ? Or are most dog owners really obsessed with details and would like to perfectly fit the size?
So in the end the main problem here is testing out both solutions on a smaller scale in the form of A/B testing in various areas - cork sniffers in California would probably care more about perfectly fitting a dog shoe - with various populations.

So ... in the end the "sample size" predicate is not really important imo in itself. Itcouldbe important in knowing what those sizes map to in units.
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post 1695966313 01-06-2024, 01:06 PM
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Originally Posted By weiss1967
friend of mine, in his mid-30th took PLC courses and started working. Like real plc programming, commissioning and such. He loves it. But I overheard from his talk, his enumeration is 50k-some. Not good. I understand he is still junior (not sure how it works) but still low. Job that requires a lot of marbles and patience, with lousy pay.
I've been doing PLC programming, HMIs, and VFDs since 2011 (I'm 55 now), although at my current job I'm working mostly on the electrical side, all of it in the oil patch. Long hours and lots of time away from my family, but the pay is good - 150k base, field bonus will put it close to 180k for last year. I haven't made 50K since like 2006, and that was a get me by job after I got laid off.
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post 1695966653 01-06-2024, 01:15 PM
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Originally Posted By skier!
theory816 is a tard

but here it is:

You have a sample of 200,000 lengths of dogs paws (1 dimension for simplicity).

option1: S, M, L
option2: XS, S, M, L XL

You are starting a company that is going to make dog booties. How would you decide on whether to implement option 1 or 2?

If you make assumptions, state them here in your answer
Talk about the data and what you are assuming as well

This is a FAANG Question I got, I got to the end at a few companies
Since they are dog paws, I assume the distribution is normal.

Way more concentration around the median.

Of course Option 1.

This is assuming the booties are tie on, not slip on.

If slip on, then Option 2 need to be considered more.
post 1695966763 01-06-2024, 01:16 PM
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Originally Posted By brosapiens
I think have a list of "random" ( what does that even mean? ) dog paws is useless. First of all your are not trying to sell to dogs, you are trying to sell to people. So the problem here is which of the options would sell better?
With humans we know that the shoe must fit perfectly, with dogs it's not such a huge deal. Do people want to choose quickly ? Or are most dog owners really obsessed with details and would like to perfectly fit the size?
So in the end the main problem here is testing out both solutions on a smaller scale in the form of A/B testing in various areas - cork sniffers in California would probably care more about perfectly fitting a dog shoe - with various populations.

So ... in the end the "sample size" predicate is not really important imo in itself. Itcouldbe important in knowing what those sizes map to in units.
List of dog paws is useless?

Fukking moron

How else you gonna know what sizes to make?
post 1695967613 01-06-2024, 01:28 PM
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Originally Posted By stevebec
I've been doingPLC programming, HMIs, and VFDssince 2011 (I'm 55 now), although at my current job I'm working mostly on the electrical side, all of it in the oil patch. Long hours and lots of time away from my family, but the pay is good -150k base, field bonus will put it close to 180k for last year. I haven't made 50K since like 2006, and that was a get me by job after I got laid off.
Damn this is where I wanna be, I work with this stuff but don't know much about the deeper nuts and bolts.
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post 1695967653 01-06-2024, 01:29 PM
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lol @ deleting threads

when did the misc become lipstick alley
Originally Posted By OGfrom06
List of dog paws is useless?

Fukking moron

How else you gonna know what sizes to make?
may as well sell gloves to humans lol


@brosapiens, people are particular about their dogs so they're going to care more about what's going on their feet not only for comfortability but safety reasons as well. you need your things to work with you not against you and if a dog is having trouble maneuvering because of bad booties (lol) then we've got a potentially unhappy anxious/aggravated doggo.
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post 1695968033 01-06-2024, 01:38 PM
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Originally Posted By OGfrom06
List of dog paws is useless?

Fukking moron

How else you gonna know what sizes to make?
I said that the last line in my post, idiot. The list of paws is literally useless. You can readily find info on what's "average", min, max, mean. That's the least important part here unless you only care about the statistics part and what the distribution is. The question was how would you go about starting a business that sells dog shoes so if you wanted to sell dog shoes the decision between option a and b is infinitely more impacted by the psychological impact of having more vs less options on the buyer, hence my reply.

Although on a second thought if it's anything like humans there's no actual average but an even distribution across the "normal" range so in this case it makes sense to have it more granular, from a technical point of view. And then if you aggregate the data in chunks by testing various deltas ... you might see that dogs mostly come in 5 sizes with a delta of 0.5cm. But then you have different breeds and other things and it gets complicated quickly. Therefore, it's best to spend most of the money on smart marketing and become the Gucci of dog shoes. Speculate sizes and people will still buy it because of the brand regardless of the actual fit. Dog shoes are stupid anyways.
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post 1695968433 01-06-2024, 01:45 PM
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Originally Posted By naaboo
lol @ deleting threads

when did the misc become lipstick alley

may as well sell gloves to humans lol


@brosapiens, people are particular about their dogs so they're going to care more about what's going on their feet not only for comfortability but safety reasons as well. you need your things to work with you not against you and if a dog is having trouble maneuvering because of bad booties (lol) then we've got a potentially unhappy anxious/aggravated doggo.
Imagine buying shoes for your dog...
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post 1695968783 01-06-2024, 01:50 PM
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Originally Posted By brosapiens
I said that the last line in my post, idiot. The list of paws is literally useless. You can readily find info on what's "average", min, max, mean. That's the least important part here unless you only care about the statistics part and what the distribution is. The question was how would you go about starting a business that sells dog shoes so if you wanted to sell dog shoes the decision between option a and b is infinitely more impacted by the psychological impact of having more vs less options on the buyer, hence my reply.
You're fukking certified moron, arent ya?

Impact..impact..can you use that word one more fukking time?

Huge word salad without nothing to actually say.

You are given that stat. You're not in a position to question if it is useful or not.

Rejected on the spot.
post 1695969103 01-06-2024, 01:54 PM
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Originally Posted By brosapiens
I said that the last line in my post, idiot. The list of paws is literally useless. You can readily find info on what's "average", min, max, mean. That's the least important part here unless you only care about the statistics part and what the distribution is. The question was how would you go about starting a business that sells dog shoes so if you wanted to sell dog shoes the decision between option a and b is infinitely more impacted by the psychological impact of having more vs less options on the buyer, hence my reply.
More options for the buyer isn't always better -- especially for neurotic types that have trouble making decisions.
post 1695969233 01-06-2024, 01:56 PM
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Originally Posted By broletariat
More options for the buyer isn't always better -- especially for neurotic types that have trouble making decisions.
Exactly! And buying dog shoes is not really a science act.
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post 1695969323 01-06-2024, 01:58 PM
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Originally Posted By OGfrom06
You're fukking certified moron, arent ya?

Impact..impact..can you use that word one more fukking time?

Huge word salad without nothing to actually say.

You are given that stat. You're not in a position to question if it is useful or not.

Rejected on the spot.
You are an idiot and don't get what I'm saying. You're only seeing the problem from your autistic statistics point of view since that was the context you had in mind when you asked it. My context is selling dog shoes and not only a maths question. In any case I added more to my post that gets into the statistics part although I'm not a mathematician and I lack the terms needed to explain it accurately. At the end of the day I could easily write piece of software to solve this problem. Could you?
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post 1695970353 01-06-2024, 02:17 PM
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Originally Posted By brosapiens
You are an idiot and don't get what I'm saying. You're only seeing the problem from your autistic statistics point of view since that was the context you had in mind when you asked it. My context is selling dog shoes and not only a maths question. In any case I added more to my post that gets into the statistics part although I'm not a mathematician and I lack the terms needed to explain it accurately. At the end of the day I could easily write piece of software to solve this problem. Could you?
Oh yea? Sell me this pen.
post 1695972223 01-06-2024, 02:51 PM
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Originally Posted By brosapiens
You are an idiot and don't get what I'm saying. You're only seeing the problem from your autistic statistics point of view since that was the context you had in mind when you asked it. My context is selling dog shoes and not only a maths question. In any case I added more to my post that gets into the statistics part although I'm not a mathematician and I lack the terms needed to explain it accurately. At the end of the day I could easily write piece of software to solve this problem. Could you?
Oh wow huge a such impactful essay

what a big impact you got there

You must possess highly impactful Emotional Intelligence since you're accusing me of low impact autisim.
post 1695972243 01-06-2024, 02:51 PM
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Originally Posted By broletariat
Oh yea? Sell me this pen.
Write your name on this piece of paper and I will rep you.
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post 1695972723 01-06-2024, 02:59 PM
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Originally Posted By brosapiens
Write your name on this piece of paper and I will rep you.
Chit I need a pen...
post 1695973653 01-06-2024, 03:16 PM
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Originally Posted By -JR
Damn this is where I wanna be, I work with this stuff but don't know much about the deeper nuts and bolts.
It's been a long strange road to get here, and there's been plenty of costs. I've missed 2 Easters, and spent my 50th birthday in the middle of the Saudi desert. Last year I was offshore Suriname for 6.5 weeks straight, back for 3, and then off Brazil for 4. I've got offshore trips for Mexico and Saudi (x2) lined up for the next few months.

We make a safety critical system (blowout preventer), so the stress is through the roof. If it doesn't fire when it is supposed to, you could be looking at Macondo 2.0. If it fires when it's not supposed to, probably 2-3 weeks of downtime for the rig at like $250K/day. I'm close to retirement, and I've realized the distance to retirement is measured in dollars instead years, so I suck it up. If I was earlier in my career I'm not sure I would put up with it.

Salaries rapidly increased about a year and a half ago. Two years ago I was making 105K base with a yearly total of probably 120K.
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