C*********l
发帖数: 10248 | 1 10. 90077
> Median list price: $2.82 million
> City/town: Bel Air, Calif.
> Year-over-year change: 16.4%
In Bel Air, nestled in the hills above Sunset Boulevard, great views command
a hefty price tag. Media rooms are a must-have because many locals work in
what’s known as “The Industry,” meaning Hollywood. One current listing is
a $29.9 million property that boasts 20,000-square feet in a “glorious,
gated and private compound.” In ritzy Bel Air, it’s not enough to own a
pool, you also need to ha... 阅读全帖 |
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w*********r
发帖数: 2095 | 2 Truecar 统计了美国最富的10个zip code，看看这些富人们都开什么车。
统计地区：
(1) Lower Manhattan (10274) -- with an average income of $5.7 million.
(2) Fisher Island, Florida (33109);
(3) downtown Chicago (60604);
(4) Atherton and Century City,
(5) California (94027 and 90067);
(6) New Vernon, New Jersey (07976);
(7) Greenwich, Connecticut (06831);
(8) Palm Beach, Florida (33480);
(9) Medina, Washington (98039); and finally,
(10) Ross, California (94957), boasting an average income of $497,000 .
最流行的车型：
1. Mercedes-Benz E-C... 阅读全帖 |
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B*****R
发帖数: 1539 | 3 The most expensive ZIP codes
ZIP Community Median price 2002
33455 Jupiter Island $5,600,000
81611 Aspen $2,600,000
31561 Sea Island $2,232,000
33480 Palm Beach $2,200,000
11771 Centre Island $2,000,000
81435 Mountain Village $1,925,000
94010 Hillsborough $1,850,000
92067 Rancho Santa Fe $1,700,000
11545 Upper/Old Brookville $1,700,000
94957 Ross $1,620,750
60611 Near North Side, Chicago $1,390,000
10577 Purchase $1,348,000
92662 Balboa Island $1,325,000
94027 Atherton $1,293,000
94528 Diablo $1 |
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f*****g
发帖数: 15860 | 4 嗯？哪说得不对么？个别富人区不能代表一个郡啊？而且说的还median income。
就是论更小单位，most expensive zip code，全美前50，只有MD的一个小地方上榜。
http://www.forbes.com/2009/08/26/most-expensive-zip-codes-lifestyle-real-estate-zip_full-list.html
1 07620 Alpine, N.J. $4,139,041 -23% 250 48 $128,287 363
2 94027 Atherton, Calif. $3,849,133 -26% 133 49 $200,001 1,398
3 10014 New York, N.Y. $3,521,514 -24% 183 137 $66,601 64,302
4 91008 Duarte, Calif. $3,444,773 18% 155 9 -- 623
5 90210 Beverly Hills, Calif. $3,367,167 -5% 193 268 $112,572 2,263
6 920... 阅读全帖 |
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t*********o
发帖数: 143 | 5 我用R做一个简单的least square fit.
why summary(fit) dump so much information?
这些std. error, t value, Pr(>|t|) on intercept and slop 都是干什么的呀？
还有底下的 Multiple R square and F statistics...
为什么搞得这么复杂呀？ 算出coefficients不就行了吗？
谢谢先。
> summary(fit)
Call:
lm(formula = rate ~ year)
Residuals:
1 2 3 4 5
0.132 -0.003 -0.178 -0.163 0.212
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 1419.20800 126.94957 11.18 0.00153 **
year -0.70500 0.06341 -1... 阅读全帖 |
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s******t
发帖数: 71 | 6 Q1:
year <- c(2000 , 2001 , 2002 , 2003 , 2004)
rate <- c(9.34 , 8.50 , 7.62 , 6.93 , 6.60)
cor(year,rate)
fit1 = lm(rate~year)
summary(fit1)
year2 = rep(year, 100)
rate2 = rep(rate, 100)
cor(year2,rate2)
fit2 = lm(rate2~year2)
summary(fit2)
> summary(fit1)
Call:
lm(formula = rate ~ year)
Residuals:
1 2 3 4 5
0.132 -0.003 -0.178 -0.163 0.212
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 1419.20800 126.94957 11.18 0.00... 阅读全帖 |
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s******t
发帖数: 71 | 7 Q1:
year <- c(2000 , 2001 , 2002 , 2003 , 2004)
rate <- c(9.34 , 8.50 , 7.62 , 6.93 , 6.60)
cor(year,rate)
fit1 = lm(rate~year)
summary(fit1)
year2 = rep(year, 100)
rate2 = rep(rate, 100)
cor(year2,rate2)
fit2 = lm(rate2~year2)
summary(fit2)
> summary(fit1)
Call:
lm(formula = rate ~ year)
Residuals:
1 2 3 4 5
0.132 -0.003 -0.178 -0.163 0.212
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 1419.20800 126.94957 11.18 0.00... 阅读全帖 |
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