l****f
发帖数: 332 | 1 http://thecaucus.blogs.nytimes.com/2012/01/24/inside-the-romney
January 24, 2012, 8:42 am
Inside the Romney Tax Returns
By FLOYD NORRIS, NICHOLAS CONFESSORE and STEPHANIE STROM
Mitt Romney’s campaign released details of his federal tax returns on
Tuesday morning, providing the most detailed view yet of his wealthy family
’s finances.
Times reporters are looking into the specifics of the returns. Follow along
for analysis, and view the individual returns.
# Mitt and Ann Romney’s tax returns: 2010... 阅读全帖 |
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i****e
发帖数: 46 | 2 基本同意你的观点。略加展开。
他的观点是三等舱，男性乘客多，死的男性比例高才导致整体男性死者比例高。既然对
方用了统计术语，那么就用统计学的方法来解决这个争论。
就这个数据。要做stratify analysis. stratify on gender. colunm varible:舱位，
row variable:death 然后在各自的strata比较survival rate和趋势,看significant
与否，等等才能下定论。
总之，要提供具体数据，否则都是扯谈。 |
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k**l
发帖数: 2966 | 3 谢谢，这个（strata falls） home depot clearance 时买的，$49.99, 我当时又有个
15 off 50 所以花了 $35
在家里搁了半年终于装上了：）
今天放进去3条commet gold fish，hope they will survive |
|
a******c
发帖数: 1159 | 4 第一张是草稿？第二张成图？
如果想加强景深的话，近处的色带可以再宽一点
如果是追求平面装饰效果可以直接作两层叠加了黑白细线条+色彩宽线条
色彩感觉是不错
调子灰了点
可以尝试稍微提高点纯度
会是完全另外一个效果
以前用过一个软件好像叫strata可以生成这种色带
(nnd,放狗没找到） |
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l*****a
发帖数: 38403 | 5 http://en.wikipedia.org/wiki/List_of_artifacts_significant_to_t
10-line ritual cup (c. 1 AD) - 2,000-year-old limestone cup with 10 lines of
Aramaic or Hebrew script found near the Zion Gate of the Old City of
Jerusalem. Found by U.S. archaeologists; Shimon Gibson of the University of
North Carolina at Charlotte stated that "To have 10 lines of text is
unprecedented..." They know it contains the Hebrew word for God indicating
it was probably important to the priests who used it in rituals.[3]
Am... 阅读全帖 |
|
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c****t
发帖数: 19049 | 7 THE GHASTLY ORDEAL OF TIMOTHY CAVENDISH
One bright dusk, four, five, no, my God, six summers ago, I strolled along a
Greenwich
avenue of mature chestnuts and mock oranges in a state of grace. Those
Regency residences
number among London’s costliest properties, but should you ever inherit one
, dear Reader, sell
it, don’t live in it. Houses like these secrete some dark sorcery that
transforms their owners into
fruitcakes. One such victim, an ex-chief of Rhodesian police, had, on the
evening in qu... 阅读全帖 |
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a*********7
发帖数: 30080 | 8 http://en.wikipedia.org/wiki/Cambrian_explosion
The Cambrian explosion has generated extensive scientific debate. The
seemingly rapid appearance of fossils in the “Primordial Strata” was noted
as early as the mid 19th century,[6] and Charles Darwin saw it as one of
the main objections that could be made against his theory of evolution by
natural selection.[7]
实际上关于寒武纪爆炸的问题不是一个新问题，达尔文在生的时候就意识到这个问题as
one of the main objections that could be made against his theory of
evolution by natural selection |
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E*****m
发帖数: 25615 | 9 公元前4004年， 十月末，生日剛過。
In the beginning — specifically on October 23, 4004 B.C., at noon — out of
quantum foam fluctuation God created the Big Bang. The bang was followed by
cosmological inflation. God saw that the Big Bang was very big, too big for
creatures that could worship him, so He created the earth. And darkness was
upon the face of the deep, so He commanded hydrogen atoms (which He created
out of Quarks and other subatomic goodies) to fuse and become helium atoms
and in the process release... 阅读全帖 |
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a******e
发帖数: 982 | 10 In the beginning — specifically on October 23, 4004 B.C., at noon — out of
quantum foam fluctuation God created the Big Bang. The bang was followed by
cosmological inflation. God saw that the Big Bang was very big, too big for
creatures that could worship him, so He created the earth. And darkness was
upon the face of the deep, so He commanded hydrogen atoms (which He created
out of Quarks and other subatomic goodies) to fuse and become helium atoms
and in the process release energy in the form ... 阅读全帖 |
|
l*****a
发帖数: 38403 | 11 Grand Canyon? Caused by Noah's Flood, that
By Lewis Page • Get more from this author
Posted in Science, 14th June 2011 10:35 GMT
Free whitepaper – Physical Security in Mission Critical Facilities
Creationists are infiltrating US geology circles in an attempt to push the
theory that the Earth is no more than 10,000 years old and that recognised
geological phenomena which appear to contradict this idea can be accounted
for by Noah's Flood and similar Bible stories.
The attempt by creationist... 阅读全帖 |
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l*****a
发帖数: 38403 | 12 【 以下文字转载自 Belief 讨论区 】
发信人: leonana (leonany), 信区: Belief
标 题: Re: list of 和圣经有关的古物
发信站: BBS 未名空间站 (Mon Aug 22 21:21:07 2011, 美东)
http://en.wikipedia.org/wiki/List_of_artifacts_significant_to_t
10-line ritual cup (c. 1 AD) - 2,000-year-old limestone cup with 10 lines of
Aramaic or Hebrew script found near the Zion Gate of the Old City of
Jerusalem. Found by U.S. archaeologists; Shimon Gibson of the University of
North Carolina at Charlotte stated that "To have 10 lines of text is
unprecedented.... 阅读全帖 |
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l******t
发帖数: 490 | 13 解答：Allah為什麼有時候用複數代詞“我們”
The Quran, Allah and Plurality Issues (Sam Shamoun)
The Quran, much like the Holy Bible, uses plural pronouns for God even more
so than what we find in God’s true Word. Here are several examples:
This is part of the tidings of the things unseen, which We reveal unto thee
(O Apostle!) by inspiration: Thou wast not with them when they cast lots
with arrows, as to which of them should be charged with the care of Mary:
Nor wast thou with them when they disputed (the point). S... 阅读全帖 |
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f*******s
发帖数: 11 | 14 yes lets be polite,
i dont know why chinese are regarded only higher than Indians but its the
truth.
Lets not talk about the blacks, they are too low in the strata to be
compared to.
Am I a racist? yes, and so is everyone, the only difference is that I admit
to it and show no regret.
IC, |
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l***4
发帖数: 1876 | 15 如果不是ATT的，就很可能是下列运营商之一：
Appalachian Wireless
Bluegrass Cellular
Boost
Carolina West
Cellcom
Chariton Valley
Chat Mobility
Consumer Cellular
Credo
Cricket
C-Spire
Defense Mobile
Family Mobile
GCI
Illinois Valley Cellular
Inland Cellular
MobileNation
Net10
Nex-Tech
NorthwestCell
nTelos
Panhandle
Pioneer Cellular
Silver Star
Straight Talk
STRATA Networks
Thumb Cellular
Tracfone
Union Wireless
United Wireless
US Cellular |
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b*******u
发帖数: 501 | 16 Here is the whole problem.
Write a program that outputs the numbers 1 thru 100 and obeys the following
special rules:
1. Outputs "Strata" whenever the number contains a 2。
2. Outputs "Red" whenever the number contains 2 identical digits.
3. Outputs "Blue" whenever the number two preceding the number you are on
contained a 2.
第三条Rule是什么意思？
What does it means: “the number two preceding the number you are on
contained a 2.”
Thanks. |
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h*h
发帖数: 845 | 17 Strata NY上的slide? 哪个presentation?
上礼拜俺老板present后还得意洋洋的跟俺引用了这句话，说俺们actually get laid，
所以people are interested in the details... |
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n*****3
发帖数: 1584 | 18 spark streaming 1.2 支持Python啦
在 strata 纽约 听 databricks 说的 |
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s*********s
发帖数: 35 | 19 被你这么说 好像写是挺简单 只要用dstream的map函数 在里面写输出是吧 我回头去试试
读的话我原本也是担心是转换 我看到网上一个贴说用dynamoInputFormat转HadoopRDD
可能确实是Cassandra更好也说不定 但是用dynamo已经是板上钉钉的事。。
这周的strata 好像也是spark最火 |
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f******2
发帖数: 2455 | 20 这火气。。。
Cloudera员工私下的观点到你老这里就成瞎bb了。多参加下Strata什么的，都参加些
meetup从中交交朋友，不要受着自己那一亩三分地，就以为是砖家了。 |
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f********x
发帖数: 99 | 21 The world beyond batch: Streaming 101: A high-level tour of modern data-
processing concept
http://radar.oreilly.com/2015/08/the-world-beyond-batch-streami
by Tyler Akidau August 5, 2015
Editor’s note: This is the first post in a two-part series about the
evolution of data processing, with a focus on streaming systems, unbounded
data sets, and the future of big data.
Streaming data processing is a big deal in big data these days, and for good
reasons. Amongst them:
Businesses crave ever more tim... 阅读全帖 |
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D**o
发帖数: 2653 | 22 注意作者 \author{YHBKJ}
Atiyah-Bott Localization 1
2012-09-05 09:24:19
\documentclass[a4paper,12pt]{article}
\usepackage{amsfonts}
\usepackage{amsmath,amsthm,amssymb}
\usepackage{CJK,graphicx}
\usepackage{amscd}
\usepackage{amssymb}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{corollary}{Corollary}[section]
\newtheorem{definition}{Definition}[section]
\newtheorem{lemma}{Lemma}[section]
\begin{document}
\title{\textbf{\Huge{Atiyah-Bott Localization 1}}}\author{YHBKJ}\date{}\
maketitle
\begin{ab... 阅读全帖 |
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J*******3
发帖数: 1651 | 23 漫谈物理学的过去、现在与未来*
冯 端
摘 要 文章试图对物理学的发展历史作一透视，从而理解其现状，并进而窥测其未
来的前景.我们希望这一看法对于当今从事物理学教学与科研的人士有所助益.由于物理
世界的层次化，诸层次之间既可能存在耦合，又可能出现脱耦.因而大量粒子所构成的
复杂体系中所涌现的各种层展性质就不能简单地还原成个别粒子所服从的规律.我们根
据这一观点并结合物理学的未来前景，讨论了当今物理学研究的若干前沿问题.一切迹
象预示着物理学将有光明的前景.
关键词 物理学，历史，现状，前景，前沿，物理世界的层次化，层展性质
RAMBLING ABOUT THE PAST,PRESENT AND FUTURE OF PHYSICS
Feng Duan
(Department of Physics,Najing University;National Laboratory of
Solid State Microstructures,Najing 210093)
Abstract This paper gives a historical perspective about the ... 阅读全帖 |
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l********l
发帖数: 10 | 24 我想fit一个Cox phreg.用的是如下的code:
proc tphreg data=fortest;
class trtgrp sex race;
model days*censor(0)=trtgrp sex race;
strata site;
output out=curve survival=est;
run;
这儿trtgrp=treatment group; days=survival time; censor=event/no event.
得到的survival probility 保存在curve,结果试图画图时发现curve dataset有以下问
题：
survival probility不是随survival time的增加而递减的阶梯函数。
不知道是什么地方出的问题，牛人们能给指点一下吗？
BTW,我用的是sas 9.1 |
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d******o
发帖数: 59 | 25 It depends on which industry.
SAS is more for large research institutes and government.
SPSS or STRATA might be used in commercial companies.
R is just for academic or academic related. |
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s*******9
发帖数: 35 | 26 Sorry I cannot input chinese.
mediators are those factors lining on the casual pathway through which your
exposure, a drug for example, affects your outcome, mortality for example.
moderators: when you stratify your study sample by a moderator, gender for
example, you will get different estimated effects in each strata (males/
females). For example, a drug is more effective for males than for females.
Without stratification you will not find out such a difference.
confounders:when you stratify y |
|
g******d
发帖数: 231 | 27 我用以下的SAS code作Survival Curve:
proc lifetest data=models plots=(s) cs=none graphics;
time duration*event(0);
strata age1;
run;
比较讨厌的情况是output plot中的legend没法编辑，结果图表中的horizontal axis
title和variable legend都是按照输入的数据的原本模样。还有其他一些讨厌的地方。
请问有什么办法可以改善这种状况? 我现在用的是SAS9.2.
我能想得出来的是将survival function output拷到Excel中，然后完全让Excel来做
graph。但问题是数据的样本很大，case非常多，没办法简单的copy and paste。
所以请高手予以指教. 多谢多谢! |
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p***r
发帖数: 920 | 28 请问这个公司的性质，刚刚拿到一个他家的电话面世 |
|
p***r
发帖数: 920 | 29 自己顶一下,顺便说一下面试内容:
是个印度人
1.先介绍了一下他们公司的状况,和我这个position的大致内容，感觉跟我的
background很不
match, 感觉他们要找的是bachelor level的，然后就是大杂活，数据处理之类的，有
点让我感
觉一般，不过这是我人生中第一个面试，所以还是人认真地对待把
2.然后让我介绍了一下自己的background,我就说说，要毕业了，自己的方向之类的
3.然后就开始面试问题：
a.你会SQL么？ ans:不会，知道，不过觉得自己应该很快学会
b.你会C++么,说说你的C++经验?(因为我在自己履历表上写会的)， ans: 我就说不会
，这是本
科
时候学的，后来没有什么具体经验，我说我会Matlab, R,SAS, blah,blah, 然后他说
perfect
c.说说你的两个strong point, 两个weak point.
我就说了两个，两个
d.然后他就说问题问完了，问我有什么问题，我就跟他们胡扯了一下，问了三个问题
然后他说他要给我做个take home 的 |
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c*********n
发帖数: 87 | 30 我觉得你是要看group的差异的话，应该还需要一个group indicator，然后用starta，
这样才能test group 差异。
day censorflag count group
1 0 5 1
1 1 10 0
2 0 5 0
2 1 8 1
proc lifetest data=**** method=lt;
time day*censorflag(0);
freq count;
strata group；
test group;
run;
我要看的是 group 之间的差异，例如两个survival function是不是有显著性差异。 |
|
s*******e
发帖数: 1385 | 31 把group的格式换成数字就可以运行了，但是结果是好像不对，不能strata，然后再
test，
test statistic是0,std也是0 |
|
s*******e
发帖数: 1385 | 32 谢谢回答
如果是多个group的情况呢？有没有一个paired test就像ANOVA里面的post hoc test？
还有就是好像strata group和test group好像不能一起用，一起用的结果就是TEST
statement的output statistic 是0，std也是0 |
|
A*******s
发帖数: 3942 | 33 什么事srs？simple random sample？什么是从strata里srs出一些cluster。 |
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e*******2
发帖数: 145 | 34 是,simple random sample我现在就是不知道,怎样在strata select里套个two stage
cluster |
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l*****i
发帖数: 43 | 35 以前proc surveymeans 不管variable的format有多长，都可以output，现在format如
果很长就被truncate了。
proc surveymeans data=aa nobs mean clm;
var xx;
domain yy;
strata pp;
weight ww;
run;
如果xx的format很长，比方说是this is a test code bbbbb,就被truncate成this is
a t.
我数了数，最多能output出12个字母。
大家有没有遇到这个问题？ |
|
N********a
发帖数: 248 | 36 I want to do propensity score analysis. I have already fit a logistic
regression and got the predicted probability as propensity score. But how to
stratify these data according to the propensity score in R? If I want to
get 5 strata, what function should I use?
Thanks. |
|
d******o
发帖数: 59 | 37 先把名词用对：
是nonresponse weighting吧。
那个unresponse probability,应该是response propensity.
如果instruction没有提到race,你算response propensity不需要加入race.
如果你只是要reponse propensity,你不需要用特别的survey procdure,就用普通的
logistic就好。
你的nonresponse weights就是1/response propensity.
我不明白的是，你这是什么意思
“这个样本的取样strata是race，就分为白人和黑人两种。一共分8次取了8个小样本，
联合起来总共有1600多个observation。
我的想法是对每一个batch做unrespond weight，因为每一次取样的时候的response可
能都会不同。”
你要针对每个batch，作一次模型，然后有8个不同的response propensity的模型吗 |
|
s**f
发帖数: 365 | 38 请问如何在SAS里计算：
是survey data，如何用SAS计算两个var的correlation和这个correlation的
confidence interval？
这两个variable可能是：
binary VS binary
binary VS continuous
binary VS ordinal
如果不是survey data的话，用PROC CORR或者PROC FREQ都能算。不过我这个data有
strata，weight，看了半天文献也没找到如何计算confidence interval。
感谢！ |
|
w*********r
发帖数: 488 | 39 SAS 里面的proc surveyreg是所有complex sample design都适用的吗（除了
poststratification and two-stage cluster sampling ）？
如果我现在面对的是这样的survey data：
用户买了我的产品，我做售后调查，除了了解性别年龄收入地区职业等用户基本信息之
外，主要是问问对买产品的整个过程（online order的流程是否简单易行，速度），售
后服务，客服电话等待时间等方面做调查。我没有办法控制用户回答问题的质量（比如
是否回答所有问题），或者有多少人会响应我的调查邀请（non-response）。
而且我不是调查的设计者，我只是使用这些信息做分析。请问这样的调查属于什么类型
，在SAS里有办法specify吗？我只看到PROC SURVEYREG里面有strata statement，但是
我不觉得这个调查属于分类调查啊。
包子答谢，多谢了，欢迎讨论。。。 |
|
s**f
发帖数: 365 | 40 请教一个sas问题哈，
我想比较黑人和白人（race）的平均年龄（age）的差别,t test。但是我是survey的数
据。试了半天surveymeans，但是总是说我的by race那句话有问题，跟total＝有冲突。
PROC SURVEYMEANS DATA=ONE TOTAL=AAA(RENAME=(NSTRATUMCEN=_TOTAL_));
STRATA XXX;
WEIGHT XXX;
VAR AGE;
BY CRACE;
RUN;
ERROR: Not all BY variables from the ONE data set are present in the AAA
data
set, or some BY variables have different attributes in the two data
sets
咋办？咋办？咋办？
感谢！感谢！感谢！ |
|
z**********i
发帖数: 12276 | 41 是病人水平的HEALTH CARE CLAIMS DATA, 从2002年到09年.
有医院类别,病人年龄,性别,种族和从哪里入院(比如,急诊,老人院,ER)和出院去了哪里
(比如,回家,老人院,死亡).
目前,做了一些描述性的图.
distribution plot of length of stay.
boxplot of length of stay.
mean of length of stay by year.
Kaplan-Meier plot strata by 医院类别,病人年龄,性别,种族和从哪里入院(比如,急
诊,老人院,ER)和出院去了哪里(比如,回家,老人院,死亡).
想征集一下思路,下一步,可以做些什么统计分析?
多谢! |
|
t****a
发帖数: 1212 | 42 Thanks for your baozi and reply:)
I think you are right. extractAIC return 2 number: the degree of freedom and
AIC. In your case 5166.643 is AIC.
> x=clogit(case~spontaneous+induced+strata(stratum),data=infert)
> extractAIC(x)
[1] 2.0000 132.4045 # AIC = 132.4045
> x$loglik
[1] -90.77935 -64.20224 # -64.20224 is the loglik of the final fitted model,
see ?coxph.object
> 2*2-2*x$loglik[2] # try the formula AIC = 2*k - 2*ln(L)
[1] 132.4045 # the number equal to the result of extractAIC
Thanks for... 阅读全帖 |
|
l******0
发帖数: 73 | 43 It seems your data can't be fit to only one model well. How many
observations do you have? Are they from the same strata? |
|
a********y
发帖数: 474 | 44 需要GLM吗？如果有strata 和weight 的话？ |
|
s*****a
发帖数: 2735 | 45 试试把lifetest放到macro里？
%macro test1;
proc lifetest XXX;
strata &trt / order=internal;
....;
run;
%mend test1;
%test1;
看看这样行不行？
--------------------
不知道你的&trt是怎么来的，能把&trt产生那一步也给出吗？ |
|
a******p
发帖数: 414 | 46 shincha, 谢谢你这么热心的给我解答。
1. 我在写一个survival macro, 类似下面的：
Macro SYNTAX
%SurvTab(data=,
stratum_list=,
time=,
censor=,
estimate=,
graphfile=,
rtffile=,
title= );
&trt是macro parameter, 类似于上面的stratum_list.
2.我没有用gplot来画图，我用的是proc lifetest + plot(s)
所以我想通过在strata statement 后加 order=internal option 来控制我的
treatment label.
不知我说清楚没有，谢谢！
成& |
|
s******8
发帖数: 102 | 47 不清楚究竟是啥问题。“问题是&trt是macro variable, 我不知道如何用format 和
informat.”
是否可以照猫画虎？
%macro test1;
data xxx;
format &trt yourmatnamehere.;
set xxx;
run;
proc lifetest XXX;
strata &trt / order=internal;
....;
run;
%mend test1;
%test1; |
|
a******p
发帖数: 414 | 48 谢谢你的回答。我也是赶鸭子上架，表述不清楚。
下面的code是我从网上找到的。我的&trt 相当于下面code的里的group,
我的问题是，&trt是macro variable, 我不知怎么向下面一样写format
proc format;
invalue $bmtifmt 'ALL' = 1 'AML-Low Risk' = 2 'AML-High Risk' = 3;
value bmtfmt 1 = 'ALL' 2 = 'AML-Low Risk' 3 = 'AML-High Risk';
run;
data Bmt2;
set sashelp.BMT(rename=(Group=G));
Group = input(input(G, $bmtifmt.), 1.);
label Group = 'Disease Group';
format Group bmtfmt.;
run;
proc LIFETEST data=Bmt2 plots=s(atrisk(outside maxlen=13)=0 to 2500 by 500);... 阅读全帖 |
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A*****a
发帖数: 1091 | 49 看了下这个完整的例子，他只是随意指定了size，来举例怎么使用strata这个命令罢了吧
Does
lot!
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