w********9
发帖数: 8613 | 1 这里有夸大数据的倾向。
我最近开始在从网上、这里比较实在的人、和几个在Google工作或工作过的熟人那里了
解基本近况。
paypal最近做了一个调查发现，Google的median salary大概是140K。但是，单谈
Google的salary没有意义。
网上还有一个调查说，给刚进Google的一般员工四年股票从几千到7万不等。
近两年Google给的股票少了，股票价格基本上在起伏，总体上没有上涨。涨salary是保
证总体收入的一个措施。Google去年的bonus从百分之几到二、三十的都有，也许平均
有15%左右？工资涨了10%，另外bonus的一半进了基本工资。这样看来，salary大概涨
了18%左右？一个比较流行的看法是，今后Google的bonus会明显减少。
一般来说，工资很高的人岁数都比较大。不是好事吧？哈哈。
希望了解情况的同胞修正或补充。 |
|
g**c
发帖数: 2339 | 2 如果工作5年还没到是不是可以去撞墙了？
The metropolitan areas with the highest median salaries included San Jose (
CA) ($155,000), Nashua (NH) ($148,296) and Orange County (CA) ($140,625) and
Monmouth and Ocean Counties (NJ) ($140,000).
http://www.todaysengineer.org/2011/Oct/salary-survey.asp |
|
l*****8
发帖数: 16949 | 3 哦，这个不是按工资排名list的阿。按starting median salary, Linda是第三。 |
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c**r
发帖数: 10001 | 4 Can use Median(cellrange) directly? |
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s********n
发帖数: 154 | 5 多谢，发现确实可以用median(cellrange)来求解。而且也不需要我原来做的排序。 |
|
c*******h
发帖数: 1096 | 6 【 以下文字转载自 Programming 讨论区 】
发信人: cockroach (冬冬), 信区: Programming
标 题: C/C++里面有没有库提供找数组median的函数
发信站: BBS 未名空间站 (Tue Jan 3 14:05:26 2012, 美东)
数组是分布式存储的 |
|
e******5
发帖数: 1334 | 7 Salaries for first-year lawyers seem to congregate in two camps: those who
earn about $45,000 to $65,000 a year (representing about 34 percent of
reported salaries), and those who earn about $160,000 a year (representing
about 25 percent of reported salaries). Very few newly minted lawyers
actually receive “average” or even median pay.
Besides producing a nifty statistical illusion, this bimodal pay structure,
and the very stark choice it requires law students to make early in their
career, has |
|
b***k
发帖数: 2673 | 8 说几个不同的计算机上各有一组长短不一的数组，
你无法把所有数组的数提出来排序，但你可以分别在各自的计算机里面排序，
给出一个算法得到所有这些数的中位数（median number）
这个是考programming的算法，似乎很经典啊，有什么好办法？ |
|
c*********g
发帖数: 154 | 9 “Introduction of Algorithm”的“Medians and Order Statistics”有一个与之相
关的算法。
不过这道题M台计算机们各自为战，SELECT算法没法递归调用。假设数组的最大长度为N，那
么最坏情况下问题规模的递推公式大概是这样的：
T(nm)<=2T(n/2*m/2)+O(M)
其中O(M)在子问题中可以看做常数。由这个递推公式得到复杂度为O(sqrt(NM))。
但不要忘记，每个子问题都要做一遍O(M)，而子问题的个数有log_4(NM)个，所以这方
面的复杂度是log_4(NM)*O(M)。
两者综合考虑，最后的复杂度是O(sqrt(NM))。
还没有想到怎么做进一步的分析。感觉应该会有更好的算法使复杂度大概在O(NM*log(
NM))量级，即与排序算法一个量级。 |
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c***z
发帖数: 6348 | 10 Is it possible that the real median falls outside of the initial bracket?
I think it is possible.
all
We
%. |
|
m*******r
发帖数: 98 | 11 k个array，每个长度为n，已排好序
给一个求median的算法，expected run time = O(k log^2(n))
已有rank(A1,A2,...Ak,x)能算x的rank，复杂度为O(k log(n)) |
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m*******r
发帖数: 98 | 12 对，求k个array连起来的median
A1,A2,..Ak就是这k个array
rank(A1,A2,..Ak,x)返回x在大array里的rank |
|
m****r
发帖数: 141 | 13 thanks !
But, how to find median on AVL tree ?
thanks
). |
|
h******r
发帖数: 201 | 14 记得以前有位贴过一个题目，一个file有10G大比如，要求median。
嘉定因为数据太大，无法用通常的办法，读入数据计算。有什么好办法吗？ 如果分成
若干小数据分别求，然后如何合并呢？
多谢大牛指点 |
|
h******r
发帖数: 201 | 15 谢谢大牛
我没说清楚，这个题目本意是因为数据过大，一般电脑无法一次性读入来运算。原题目
是求median的。请大牛指点 |
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L*******t
发帖数: 2385 | 16 这个问题和另一个求distribution的问题相关。
如果你能fit distribution，求Median就是小菜一碟了 |
|
|
m***b
发帖数: 11 | 18 用 R package affy 中的函数 medpolish 处理affymetrix array 数据,给出4项值
overall: the fitted constant term.
row: the fitted row effects.
col: the fitted column effects.
residuals: the residuals.
这个帖子说 "Column Effects" + "Overall" 就是所要的 median polished 结果(gene
expression estimates). 是这样吗? 哪位给解释一下吧. 谢谢.
帖子见:
http://thread.gmane.org/gmane.science.biology.informatics.conductor/16478 |
|
l*********s
发帖数: 5409 | 19 比较两个样本的median，但是不确定shape一致，不能用rank sum怎么办？ |
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b*******r
发帖数: 152 | 20 what is exactly your question? -- how to get median?
btw, u missed a 'by' statement. |
|
o****o
发帖数: 8077 | 21 data BPressure;
do patientID=1 to 20;
x=ranpoi(4, 10);
do j=1 to x;
Systolic=rannor(888);
diastolic=ranuni(8888);
output;
drop j;
end;
end;
run;
proc sort data=BPressure; by patientID; run;
ods select none;
ods output ExtremeValues=XPval;
proc univariate data=BPressure nextrval=4;
by PatientID;
var Systolic Diastolic;
output out=_mean mean=sysmean Diamean
median=sysmedian diamedia |
|
g*******r
发帖数: 270 | 22 data a;
input group $ x @@;
cards;
a 1 a 2 a 4 a 2 a -2 a 10 a 4 a 0 a 3 a 2 a 1 a 4 a 5 a 3 a 21 a
b 3 b 1 b 3 b 9 b 12 b 3 b 4 b 33 b 4 b 7 b 23 b -11 b 8 b 0 b 5
c 12 c 2 c 3 c 4 c 21 c 34 c 5 c 7 c -10 c 15 c 5 c -2 c 6
d . . .
e . . .
.
.
,
;
有一dataset，想算出每个group里的quantiles(e.g. Q1,MEDIAN,Q3),并把这些结果保
存在dataset里，以备下一步调用。谢谢！ |
|
i********w
发帖数: 13 | 23 请教各位专家一个问题。
在R里，我用coxph fit 了一个model. 其中covariate Z 有两个值 0 和 1。
我现在需要知道当Z=0的时候mean survival time 和 median survival time 是什么。
我只找到了怎么显示这两个值，但问题是我需要在下面的程序里调用这两个值，所以我
想问怎么能把这两个值取出来存起来。因为这个是在循环中做的，我不可能自己去看一
看这个值是什么。
谢谢大家。 |
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g**********1
发帖数: 399 | 24 我觉得还是不能比较两个group trend亚...能有什么结论呢？
另外，如果已经用two sample t test 比较mean, 还有必要比较median吗？ |
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D******r
发帖数: 25 | 25 也可以boxplot(x,y,notch=T) 如果没有overlap 说明median不同 |
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j******4
发帖数: 6090 | 26 如果有extreme value在sample里面的话，mean不如median更能准确的描述sample的特
征。 |
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l**t
发帖数: 6971 | 27 要是从median price能看出房价的真实走势，银行还要appraiser干啥？
我们还要zillow干啥？ |
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l*****e
发帖数: 284 | 28 波士顿环球报根据2009年麻州household median income排出按住户平均收入前20名的
城镇，几乎都是以single family住宅为主的城镇。收入是购买力，包括住房购买力的最
直接表现。
Newton， Brookline, Belmont不在20名之列。原因可能由于这三个镇的出租人口和单
身收入人口和没有收入的学生所占比例较大有关吧。
1. Sherborn
2009 median income: $186,058
1999 median income: $175,712
1989 median income: $180,942
1979 median income: $129,586
30-year change: 43.6 percent
2. Weston
2009 median income: $176,094
1999 median income: $233,543
1989 median income: $188,139
1979 median income: $151,963
30-year change: 15.9 percent
3. Carl... 阅读全帖 |
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S*********g
发帖数: 24893 | 29 1. Population by State (2012) - California
California ranks first among U.S. states in population size with an
estimated 37,253,956 residents.
Grouped by age, 25.7% of the population is under 18, 10.5% is 18 to 24, 29.1
% is 25 to 44, 23.7% is 45 to 64, and 11.0% is 65 or older. The median age
of the population is 34.7.
The racial composition of the state is 60.9% White, 6.2% Black or African
American, 0.8% Native American, 12.3% Asian, 0.4% Pacific Islander, 16.0%
from other races, and 3.4% fro... 阅读全帖 |
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a*o
发帖数: 25262 | 30 Median income for Americans was $34,750 in 2012. At some companies, however,
the median is more than five times the national number. Based on figures
provided by Glassdoor, 24/7 Wall St. examined the highest-paying companies
in America.
The companies that pay their employees the most fall primarily into two
industries: management consulting firms and tech companies. These companies
employ graduates of elite schools who have skills that are in high demand
and have high salary expectations to matc... 阅读全帖 |
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c*********t
发帖数: 2921 | 31 懒死你了。点个链接怎么啦。如果你给个video怎么办？送到你家呀。都是给你惯养的。
Silicon Valley’s stratospheric tech salaries are higher than ever — if you
can believe it.
That’s according to a Glassdoor report out Wednesday called the “25
Highest Paying Companies in America for 2017,” which features 20 tech-
related companies.
The high-paying tech companies are led by the virtualized computing company
VMWare, big data enterprise software business Splunk, and software and
engineering services company Cadence Design Systems. Every tec... 阅读全帖 |
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T****8
发帖数: 505 | 32 The real estate market is already in the deepest depression in modern U.S.
history. If you think it can't get any worse, think again. In several cities
, the real estate market is about to drop even more. Home values in many of
those cities, such as Las Vegas, have already collapsed as unemployment has
shot higher. And with no hope of quick recovery, housing prices are expected
to continue to fall. 24/7 Wall St. identified ten housing markets that are
expected to drop by at least another 10% by ... 阅读全帖 |
|
T****8
发帖数: 505 | 33 The real estate market is already in the deepest depression in modern U.S.
history. If you think it can't get any worse, think again. In several cities
, the real estate market is about to drop even more. Home values in many of
those cities, such as Las Vegas, have already collapsed as unemployment has
shot higher. And with no hope of quick recovery, housing prices are expected
to continue to fall. 24/7 Wall St. identified ten housing markets that are
expected to drop by at least another 10% by ... 阅读全帖 |
|
h********8
发帖数: 7355 | 34 【 以下文字转载自 Living 讨论区 】
发信人: Terp98 (Terp98), 信区: Living
标 题: Re: 房价开跌？
发信站: BBS 未名空间站 (Thu Aug 11 14:10:56 2011, 美东)
The real estate market is already in the deepest depression in modern U.S.
history. If you think it can't get any worse, think again. In several cities
, the real estate market is about to drop even more. Home values in many of
those cities, such as Las Vegas, have already collapsed as unemployment has
shot higher. And with no hope of quick recovery, housing prices are expected
t... 阅读全帖 |
|
T****8
发帖数: 505 | 35 The Ten Housing Markets That Will Collapse This Year
by Michael B. Sauter, Douglas A. McIntyre
Wednesday, August 10, 2011
tweet61EmailPrintprovided by
The real estate market is already in the deepest depression in modern U.S.
history. If you think it can't get any worse, think again. In several cities
, the real estate market is about to drop even more. Home values in many of
those cities, such as Las Vegas, have already collapsed as unemployment has
shot higher. And with no hope of quick recove... 阅读全帖 |
|
l********8
发帖数: 4 | 36 比如转eda吧, 看看big 2工资都top了:
Here’s the full list of the top 25 highest paying companies this year:
1. A.T. Kearney
Median total compensation: $167,534
Median base salary: $143,620
2. Strategy& (formerly Booz & Company)
Median total compensation: $160,000
Median base salary: $147,000
3. Juniper Networks
Median total compensation: $157,000
Median base salary: $135,000
4. McKinsey & Company
Median total compensation: $155,000
Median base salary: $135,000
5. Google
Median total compensation: $153,750
M... 阅读全帖 |
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b**a
发帖数: 51 | 37 家庭作业，要求用CDR 和 CAR 递归求一个非空数组的Median，巨多限制，具体如下，
请大牛帮忙，多谢。
Write a function median in Scheme that takes a nonempty list L of positive
integers (zero is not considered a positive integer) and other auxiliary
parameters of your choice. The list L is flat (i.e., it does not contain
sublists) and it is sorted in ascending order. If the length of list L is
odd, the function median returns the median element in the list, i. e. , the
middle number that divides the list into two halves of equal length so t... 阅读全帖 |
|
C********2
发帖数: 435 | 38 This article, the sixth in a 50-state series, ranks the best places to live
in Illinois based on three criteria: (1) median household income (adjusted
for cost of living); (2) educational attainment (% of residents 25 years and
over who have earned a bachelor's degree or higher); and (3) property crime
rates per 1,000 residents (burglary and automobile thefts). For purposes of
these rankings, "places" are incorporated municipalities with populations
greater than 2,000.
The twenty best places to ... 阅读全帖 |
|
d***p
发帖数: 937 | 39 还是东部有钱。美国最富的10个学区，9个在NewYork周围。
30万贫困线的湾区居然一个都没进前十。
http://www.rr.com/finance/finance/article/rr/57120512/69526874/
The Richest School Districts in America
10) Darien School District, Conn.
> Median household income: $175,766
> Pct. households earning $200,000+: 52.5%
> Pct. households earning less than $10,000: 1.4%
> Expenditure per student: $18,047
> Pct. local funding: 86%
With a median income of $177,766, the Darien School District is one of the
wealthiest in the country. According to an es... 阅读全帖 |
|
t*******y
发帖数: 21396 | 40 Fox果然也被左逼占领了
http://www.foxbusiness.com/personal-finance/2012/10/15/americas
America’s Best (and Worst) Educated States
光荣榜：
1. Massachusetts
> Bachelor’s degree or higher: 39.1%
> Median household income: $62,859 (5th highest)
> Pct. below poverty level: 11.6% (9th lowest)
2. Maryland
> Bachelor’s degree or higher: 36.9%
> Median household income: $70,004 (the highest)
> Pct. below poverty level: 10.1% (2nd lowest)
3. Colorado
> Bachelor’s degree or higher: 36.7%
> Median household income: $... 阅读全帖 |
|
|
a*o
发帖数: 25262 | 42 http://finance.yahoo.com/college-education/article/111664/collges-that-bring-the-highest-paycheck
Location, prestige, academic reputation and tuition are major factors for
students in the college selection process, but post-graduate salary is
something rarely taken into consideration.
Although salaries depend heavily on a graduate's field of work, companies
are willing to pay a premium for students hailing from the nation's top
universities. But which undergraduate institutions offer the most va... 阅读全帖 |
|
W***n
发帖数: 11530 | 43 The 10 Worst States for Property Taxes
U.S. property taxes can vary dramatically by county as well as by state.
Since property valuation is complex and highly changeable with the market,
value is not necessarily equal to cost or price. Depending on state law,
property assessments are done anywhere from once per year to every five
years. Then the value assessment of a home is multiplied by the local tax
rate, or millage rate, to find the property tax amount owed by the homeowner
. In states or co... 阅读全帖 |
|
B********n
发帖数: 7009 | 44 1. Austin, TX
Population growth 2010-2012: 5.9%
Median monthly homeowner cost: $1.725
Median income: $29,000
Unemployment rate: 4.7%
2. Washington, DC
Population growth 2010-2012: 4.6%
Median monthly homeowner cost: $2,300
Median income: $45,000
Unemployment rate: 4.9%
3. Fort Worth, TX
Population growth 2010-2012: 5.1%
Median monthly homeowner cost: $1,400
Median income: $28,600
Unemployment rate: 5.6%
4. Denver
Population growth 2010-2012: 4.9%
Median monthly homeowner cost: $1,600
Median inco... 阅读全帖 |
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s*******s
发帖数: 9489 | 45 目前最强的篮球学校和橄榄球学校都在最穷的名单上
篮球豪门油糠却在最富名单上，属于例外？
America's Richest States
10. Delaware
> Median household income: $58,415
> Population: 917,092 (6th lowest)
> Unemployment rate: 7.1% (tied-23rd lowest)
> Pct. below poverty line: 12.0% (12th lowest)
9. Minnesota
> Median household income: $58,906
> Population: 5,379,139 (21st highest)
> Unemployment rate: 5.6% (9th lowest)
> Pct. below poverty line: 11.4% (7th lowest)
8. Virginia
> Median household income: $61,741
> Population: 8,185,867 (12th highest... 阅读全帖 |
|
v******0
发帖数: 883 | 46 说经济水平,至少有10个州比河马惨.
(中线收入和物价对比)
38 Florida
40 North Carolina
47 Kentucky
9 California
42 Louisiana
16 Rhode Island
24 Oregon
46 Alabama
41 New Mexico
39 South Carolina
20 Vermont
15 New York
District of Columbia
43 Montana
48 Arkansas
50 Mississippi
49 West Virginia
31 Maine
5 Hawaii
说人口结构,至少有10个州比河马烂.
(非拉丁裔白人人口的比例)
Alabama
North Carolina
South Carolina
Virginia
Illinois
Louisiana
New Jersey
Mississippi
New York
Arizona
Florida
Georgia
Maryland
Nevada
Texas
New Mexico
California
Washington, D.C.
... 阅读全帖 |
|
f****4
发帖数: 1359 | 47 找到一个对的O(N)的解法
http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=ri
This is a pretty good puzzle. You can actually find the cutoff and a
description of exactly which pairs are in the solution in less than O(N)
time, but outputting all the solutions takes O(N) time, so it doesn't help
you overall. This won't be much of a hint, but finding the cutoff point can
be done in O(sqrt(N)*log2N) time. Forgive me for not writing code, but this
gets pretty nitty-gritty in spots.
I think of the pro... 阅读全帖 |
|
f****4
发帖数: 1359 | 48 找到一个对的O(N)的解法
http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=ri
This is a pretty good puzzle. You can actually find the cutoff and a
description of exactly which pairs are in the solution in less than O(N)
time, but outputting all the solutions takes O(N) time, so it doesn't help
you overall. This won't be much of a hint, but finding the cutoff point can
be done in O(sqrt(N)*log2N) time. Forgive me for not writing code, but this
gets pretty nitty-gritty in spots.
I think of the pro... 阅读全帖 |
|
r****1
发帖数: 4301 | 49 1. Apogee Medical
> Median salary: $220,000
> Number of employees: 750 (no. of physicians, nurse practitioners,
physician assistants)
> Sector: Manufacturing
> Headquartered: Phoenix, Ariz.
2. Boston Consulting Group
> Median salary: $143,750
> Number of employees: 6,200
> Sector: Business services
> Headquartered: Boston, Mass
3. Booz & Company
> Median salary: $140,000
> Number of employees: 3,000+
> Sector: Business services
> Headquartered: New York City, N.Y
4. A.T. Kearney
> Median salary:... 阅读全帖 |
|
P********l
发帖数: 452 | 50 确实要两次。你后面的分析也对，但是总的来说这个方法不太容易说清楚。
我又加了一种方法(solution 1)，比较容易理解一些。
http://www.sureinterview.com/shwqst/1062001/154001
Round one
1. (7 races) Divide the cars into 7 groups and get the order within each
group.
2. (1 race) Take the 7 medians and sort them. Find the median of medians
(denote as o). In following example, it is 34.
3. (3 races) Find the rank of the median of medians. Take 6 elements from
lower-left corner (25 ~ 33) and upper-right corner (13 ~ 21) and race
against the o (34). A... 阅读全帖 |
|
