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EvC Forum Side Orders Coffee House Gun Control Again

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Author Topic:   Gun Control Again
onifre
Member (Idle past 2981 days)
Posts: 4854
From: Dark Side of the Moon
Joined: 02-20-2008


(1)
Message 1066 of 5179 (686576)
01-02-2013 2:55 PM
Reply to: Message 1064 by crashfrog
01-02-2013 2:37 PM


Re: Statistical Blindness
People in the "inner city" are probably the least likely to be lawfully carrying firearms for personal defense, as opposed to carrying them as a result of their association with drug crime.
Personal defense, due to their involvement in drugs, and whatever else. Personal defense from rival gangs, etc.
These are people who are arming themselves for protection. No other citizens are more at risk of being shot than them.
Do you believe they need more guns?
And I'll believe you just as soon as you can show me evidence.
Manhattan...
- Oni

This message is a reply to:
 Message 1064 by crashfrog, posted 01-02-2013 2:37 PM crashfrog has replied

Replies to this message:
 Message 1069 by crashfrog, posted 01-02-2013 3:04 PM onifre has replied

crashfrog
Member (Idle past 1498 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 1067 of 5179 (686577)
01-02-2013 2:57 PM
Reply to: Message 1065 by xongsmith
01-02-2013 2:52 PM


Re: clarifications needed
BTW, crashfrog, the red line here is most definitely NOT Y=X. And it most definitely does not begin at {-1, -1}.
I think you've misunderstood what line I've been talking about. I've been talking about the trendline on Percy's plot, not the one on Dr. A's.

This message is a reply to:
 Message 1065 by xongsmith, posted 01-02-2013 2:52 PM xongsmith has replied

Replies to this message:
 Message 1071 by Percy, posted 01-02-2013 3:14 PM crashfrog has replied
 Message 1072 by xongsmith, posted 01-02-2013 3:15 PM crashfrog has replied

Percy
Member
Posts: 22508
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


Message 1068 of 5179 (686578)
01-02-2013 2:57 PM
Reply to: Message 1061 by crashfrog
01-02-2013 2:22 PM


Re: Statistical Blindness
crashfrog writes:
So explain to me how I'm the one being unreasonable, here.
You're in essence in a room full of people looking at you funny while you're screaming at them that they're all crazy.
But I didn't make up the fact that you put forward a trendline that begins at -1, -1...
The trendline doesn't begin at -1,-1. This has been explained several times already, but it's hopeless explaining things to you once you're all in a dither, I don't see the point in trying one more time. Look, if I'm as obviously wrong as you seem to think then everyone can see it and there's no sense in going on and on about it. As I persist in my senseless errors more and more people will start chiming in about how wrong I am. If you're right you won't be a lone ranger.
Like I said in Message 1027, the mechanism is people using firearms to prevent themselves from being murdered without actually firing the weapon. Each additional firearm that allows someone to do that results in one less homicide.
This has been responded to multiple times. Don't you need to follow that with, "Now I know that people have offered several counterarguments, such as , but ."
--Percy
Edited by Percy, : Forgot close quote.

This message is a reply to:
 Message 1061 by crashfrog, posted 01-02-2013 2:22 PM crashfrog has replied

Replies to this message:
 Message 1073 by New Cat's Eye, posted 01-02-2013 3:18 PM Percy has replied
 Message 1074 by crashfrog, posted 01-02-2013 3:20 PM Percy has seen this message but not replied

crashfrog
Member (Idle past 1498 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 1069 of 5179 (686581)
01-02-2013 3:04 PM
Reply to: Message 1066 by onifre
01-02-2013 2:55 PM


Re: Statistical Blindness
Personal defense, due to their involvement in drugs, and whatever else. Personal defense from rival gangs, etc.
These are people who are arming themselves for protection.
I'm just saying, when they use those weapons to defend themselves, that's going to be classified as a felony murder, not a justifiable self-defense homicide. The people who merely reveal that they're armed and scare off an assailant aren't going to be statistically captured in any way, but I haven't seen gun opponents respond to that except by saying that there are therefore zero known instances where people use guns to defend themselves.
If you can't know how many times it happens, you can't know. Period. And therefore for all we know it happens 200 times a day, or a minute. For all we know firearms in the US save ten lives for every one they take. I don't happen to think that's true, but by the same token it's not reasonable to say that they never save even a single life.
Manhattan...
Prove it. What's the rate of gun ownership in Manhattan over the past 20 years?

This message is a reply to:
 Message 1066 by onifre, posted 01-02-2013 2:55 PM onifre has replied

Replies to this message:
 Message 1091 by onifre, posted 01-02-2013 4:15 PM crashfrog has not replied

xongsmith
Member
Posts: 2587
From: massachusetts US
Joined: 01-01-2009
Member Rating: 7.0


Message 1070 of 5179 (686582)
01-02-2013 3:05 PM
Reply to: Message 1059 by crashfrog
01-02-2013 1:26 PM


Re: Statistical Blindness
crashfrog writes:
When you show me a trendline that begins at -1, -1 and call it a trendline that begins at 0,0, there's absolutely no reason I should believe you over my eyes. Why on Earth would I do that?
Firstly, the only one in this discussion that LIES that the trendline begins at {-1, -1} is YOU. Stop that shit.
Secondly, Percy did not use the term "trendline", he used the term "line". The line could be curved, curved sharply downward into {0,0}.

- xongsmith, 5.7d

This message is a reply to:
 Message 1059 by crashfrog, posted 01-02-2013 1:26 PM crashfrog has replied

Replies to this message:
 Message 1077 by crashfrog, posted 01-02-2013 3:31 PM xongsmith has not replied

Percy
Member
Posts: 22508
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


Message 1071 of 5179 (686585)
01-02-2013 3:14 PM
Reply to: Message 1067 by crashfrog
01-02-2013 2:57 PM


Re: clarifications needed
crashfrog writes:
BTW, crashfrog, the red line here is most definitely NOT Y=X. And it most definitely does not begin at {-1, -1}.
I think you've misunderstood what line I've been talking about. I've been talking about the trendline on Percy's plot, not the one on Dr. A's.
This has been explained before, and it's blindingly obvious. Here's the image again:
The x/y minimums and maximums are labeled "Scale" and are for the graph, not the line. I can see where it might be a bit confusing for you because the lower left of the line almost hits -1,-1, but if you look at the upper right of the line you'll see that it's nowhere near the x/y maximum for the graph of 10,89. That's because 10,89 corresponds to the top right of the graph, not the line.
The software chose the values for the x/y minimums and maximums that you see, and while the user can change them if he wishes, I didn't do that. And no matter what values you choose, when you click on Apply it only changes how the graph is displayed. It doesn't affect the line one bit. The line can only be influenced by the x,y values in the table.
Here's the link to that website:
Play with it a bit. You'll see I'm not wrong, I'm not making it up, and I'm not misrepresenting you.
--Percy

This message is a reply to:
 Message 1067 by crashfrog, posted 01-02-2013 2:57 PM crashfrog has replied

Replies to this message:
 Message 1075 by crashfrog, posted 01-02-2013 3:28 PM Percy has seen this message but not replied

xongsmith
Member
Posts: 2587
From: massachusetts US
Joined: 01-01-2009
Member Rating: 7.0


Message 1072 of 5179 (686586)
01-02-2013 3:15 PM
Reply to: Message 1067 by crashfrog
01-02-2013 2:57 PM


Re: clarifications needed
crashfrog writes:
I think you've misunderstood what line I've been talking about. I've been talking about the trendline on Percy's plot, not the one on Dr. A's.
Percy's line is BLUE not RED. Perhaps you failed to notice that. And Percy threw out 10 data pairs for some unknown reason, including Argentina, which really hurts the correlation coefficient. And the blue line also does NOT go through the point {-1, -1}.
You be busted now.

- xongsmith, 5.7d

This message is a reply to:
 Message 1067 by crashfrog, posted 01-02-2013 2:57 PM crashfrog has replied

Replies to this message:
 Message 1076 by crashfrog, posted 01-02-2013 3:30 PM xongsmith has not replied

New Cat's Eye
Inactive Member


(1)
Message 1073 of 5179 (686588)
01-02-2013 3:18 PM
Reply to: Message 1068 by Percy
01-02-2013 2:57 PM


Re: Statistical Blindness
The trendline doesn't begin at -1,-1. This has been explained several times already, but it's hopeless explaining things to you once you're all in a dither, I don't see the point in trying one more time. Look, if I'm as obviously wrong as you seem to think then everyone can see it and there's no sense in going on and on about it. As I persist in my senseless errors more and more people will start chiming in about how wrong I am. If you're right you won't be a lone ranger.
The trend line in this plot:
looks like it goes right through -1,-1.

This message is a reply to:
 Message 1068 by Percy, posted 01-02-2013 2:57 PM Percy has replied

Replies to this message:
 Message 1078 by Percy, posted 01-02-2013 3:32 PM New Cat's Eye has replied

crashfrog
Member (Idle past 1498 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 1074 of 5179 (686589)
01-02-2013 3:20 PM
Reply to: Message 1068 by Percy
01-02-2013 2:57 PM


Re: Statistical Blindness
You're in essence in a room full of people looking at you funny while you're screaming at them that they're all crazy.
Except that I'm not screaming anything. I'm the one being screamed at that I'm crazy - literally - while politely asking what it is, exactly, I'm being crazy about. And nobody can tell me. I'm not screaming about anything. I'm sitting here, wondering why normally reasonable people are screaming at me. Which is certainly the kind of thing that makes me sit up and take notice, but then I ask them and they can't tell me. So then I start to be pretty sure that you, and they, are the ones with the problem. And sure enough, you are! You're the one with the problem that you can't interpret a simple chart.
The trendline doesn't begin at -1,-1.
If you don't know how to read labeled axes, then there's not going to be any way for us to communicate. But it should suffice to ask you to look at this image, the one you've been talking about:
And look where that line enters the graph. Let me baby-talk you through it since we're having such a tremendous failure in communication. The X axis is spaced by 1 per tick and the Y axis is spaced 9 per tick. Count back 1 from 0 on the X. That's X = -1. Count down 9 from the 8 on the Y. That's Y = -1. Since that's where the axes meet, that's the origin. This is confirmed by the fact that you've set the Xmin to -1 and the Ymin to -1, as shown in this screencap of the UI of the webpage you're using.
I don't understand how you're not seeing that, or how when you look at that graph you see a trendline that passes through 0,0. This isn't me being crazy; this is you not being able to see what's in front of your face. It's fine, it's no problem, that happens sometimes when we make assumptions about how graphs work based on how graphs are usually presented - with an origin at 0,0, for instance - but it's also the kind of thing where graphs can mislead unless you really look at what is being presented. It's like how when you look at this:
and you don't notice, until I tell you, that the word "the" is in there twice. You don't expect it so you don't see it. Similarly, you're expecting the intersection of the axes of a graph to be at 0,0, and so you see that on the graph even though that's not what's there.
This has been explained several times already, but it's hopeless explaining things to you once you're all in a dither
What's hopeless is getting you to admit you made a mistake when you have, especially when it's me you're talking to. Because you're convinced that I won't admit error about things, you're convinced that every time I won't admit that I'm wrong it's because I'm not seeing the truth.
But I do admit error. In this thread I've admitted error perhaps a dozen times on a wide variety of subjects, including the population of the United States in the last census. I've not yet seen you admit error about anything. So objectively, if there's someone here in this back-and-forth who won't admit they're making a mistake, it seems most reasonable to me that it's you - particularly since there you are, insisting something about a plainly-labeled chart that I can see just isn't so.
This has been responded to multiple times.
It's not been responded to even once. Even getting you to admit that I said it took four posts, Percy.

This message is a reply to:
 Message 1068 by Percy, posted 01-02-2013 2:57 PM Percy has seen this message but not replied

crashfrog
Member (Idle past 1498 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 1075 of 5179 (686591)
01-02-2013 3:28 PM
Reply to: Message 1071 by Percy
01-02-2013 3:14 PM


Re: clarifications needed
The x/y minimums and maximums are labeled "Scale" and are for the graph, not the line.
I didn't say they were for the line. They're for the axes. That is, the X axis goes from -1 to 10 and the Y axis goes from -1 to 89. Which means that the point where they intersect is -1, -1, not 0,0. That's also the point where the trendline intersects. But the equation Y = 6.8X + 5.6 doesn't intersect -1, -1 (6.8(-1) + 5.6 doesn't equal -1) so the line on the graph can't be the line described by that equation.
This is all stuff that is readily apparent once you stop looking at that image expecting to see a line that passes through 0,0.
It doesn't affect the line one bit.
The line has to be drawn in the same coordinate system as the rest of the graph if it's to have any meaning in terms of describing the data plotted on the graph. If you're saying that the coordinate system of the line is not the same as the coordinate system of the scatter plot then you've definitely admitted that your image is deeply misleading.

This message is a reply to:
 Message 1071 by Percy, posted 01-02-2013 3:14 PM Percy has seen this message but not replied

Replies to this message:
 Message 1083 by xongsmith, posted 01-02-2013 3:53 PM crashfrog has replied

crashfrog
Member (Idle past 1498 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 1076 of 5179 (686592)
01-02-2013 3:30 PM
Reply to: Message 1072 by xongsmith
01-02-2013 3:15 PM


Re: clarifications needed
Percy's line is BLUE not RED. Perhaps you failed to notice that.
If I said that Percy's line was red instead of blue, or black as it looks to me, then that was certainly a mistake. I don't recall whether I did that or not. If I did, it wasn't an intentional mistake.
And the blue line also does NOT go through the point {-1, -1}.
I'm looking right at it and it goes through -1, -1. I don't know what you think you're seeing.

This message is a reply to:
 Message 1072 by xongsmith, posted 01-02-2013 3:15 PM xongsmith has not replied

crashfrog
Member (Idle past 1498 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 1077 of 5179 (686593)
01-02-2013 3:31 PM
Reply to: Message 1070 by xongsmith
01-02-2013 3:05 PM


Re: Statistical Blindness
The line could be curved, curved sharply downward into {0,0}.
Uh, ok, I guess, but it's not. It's a straight line that passes through -1, -1.

This message is a reply to:
 Message 1070 by xongsmith, posted 01-02-2013 3:05 PM xongsmith has not replied

Percy
Member
Posts: 22508
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


Message 1078 of 5179 (686594)
01-02-2013 3:32 PM
Reply to: Message 1073 by New Cat's Eye
01-02-2013 3:18 PM


Re: Statistical Blindness
Catholic Scientist writes:
looks like it goes right through -1,-1.
It does go very close to -1,-1. The actual point is -1,-1.2. If you click on Ctrl-+ a few times you'll see that the line does actually pass just a bit below -1 of the y-axis.
But that's a meaningless extrapolation of the line - there's no such thing as negative guns or gun deaths. Crash somehow concluded from it that I was manipulating the drawing of the line on the graph. But I provided the link to the website, he has Dr Adequate's graph just like I did, he can eyeball values onto that website just like I did, and hopefully he'll do a better job than I did, Xongsmith says I left out some points.
--Percy
Edited by Percy, : Wordsmithing.

This message is a reply to:
 Message 1073 by New Cat's Eye, posted 01-02-2013 3:18 PM New Cat's Eye has replied

Replies to this message:
 Message 1079 by crashfrog, posted 01-02-2013 3:36 PM Percy has replied
 Message 1081 by New Cat's Eye, posted 01-02-2013 3:42 PM Percy has seen this message but not replied

crashfrog
Member (Idle past 1498 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 1079 of 5179 (686597)
01-02-2013 3:36 PM
Reply to: Message 1078 by Percy
01-02-2013 3:32 PM


Re: Statistical Blindness
Crash somehow concluded from it that I was manipulating the drawing of the line on the graph.
No, I was telling you that you were incorrectly describing as "rising from 0,0" a line that doesn't even pass through 0,0. I was telling you that because you did that. I don't see how I could have been any clearer than that.

This message is a reply to:
 Message 1078 by Percy, posted 01-02-2013 3:32 PM Percy has replied

Replies to this message:
 Message 1080 by Percy, posted 01-02-2013 3:39 PM crashfrog has replied

Percy
Member
Posts: 22508
From: New Hampshire
Joined: 12-23-2000
Member Rating: 5.4


(1)
Message 1080 of 5179 (686599)
01-02-2013 3:39 PM
Reply to: Message 1079 by crashfrog
01-02-2013 3:36 PM


Re: Statistical Blindness
Hi Crash,
I never described the best-fit line as rising from 0,0. The y-intercept is 5.6, it couldn't possibly rise from 0,0.
What I did say is that mathematically we know that 0 guns must correspond to 0 gun deaths, and that the line can only rise from there.
--Percy
Edited by Percy, : Correct the y-intercept value.

This message is a reply to:
 Message 1079 by crashfrog, posted 01-02-2013 3:36 PM crashfrog has replied

Replies to this message:
 Message 1082 by crashfrog, posted 01-02-2013 3:43 PM Percy has replied
 Message 1085 by xongsmith, posted 01-02-2013 3:59 PM Percy has replied

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