t*******t
发帖数: 633 | 1 unequal variance 跟你的sample size不相等没有什么关系。
你可以先检测一下两组的variance是不是一样然后再决定assume equal还是不equal的
variance。 |
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p***7
发帖数: 535 | 2 I have a dataset test blow
Obs Variable Method Variances tValue DF Probt
1 age Pooled Equal 1.19 16 0.2522
2 age Satterthwaite Unequal 1.19 14.672 0.2538
Now I want to delete the second observation.
data testpval;
set test;
if df=14.672 then delete;
run;
Why is it not working?
Thanks |
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t**********7
发帖数: 14 | 3 如果unequal variance的话，可以考虑Moods Median test，把median 作为location
parameter 来比较。 |
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T*******I
发帖数: 5138 | 4 Yes, you have a way to calculate a sample mean. But you know neither a
population mean, nor how to calculate the expectation of a sample mean. So,
you can say whatever a relationship between these two stuffs, i.e. equal or
unequal. Nobody knows except you take the assumption that you were taught.
But the assumption might not be correct.
believe,
population |
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T*******I
发帖数: 5138 | 5 Yes, you have a way to calculate a sample mean. But you know neither a
population mean, nor how to calculate the expectation of a sample mean. So,
you can say whatever a relationship between these two stuffs, i.e. equal or
unequal. Nobody knows except you take the assumption that you were taught.
But the assumption might not be correct.
believe,
population |
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a******1
发帖数: 201 | 6 1. Only professionals can define the variation in your case, the data
analysts can't. Since you are asking the question with the correlation
coefficient, I assume that as a professional in your field (biology?), you
know that is being used to quantize the variation.
2. In your case, you have two samples with size of 45 and 28, and you would
like to compare the means. The classic and best approach is to use t-test as
suggested. But please note that the each sample does not consists of
independent... 阅读全帖 |
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A*******s
发帖数: 9638 | 7 今天下午看到一个case， 与大家分享：
67 yrs old WF with a history of A-fib, presented to ER with diaphoresis and
fatigue for 2 days. She has been on Pradaxa for a-fib. Cardiology suspected CHF exacerbation.
PMH: CAD, CHF and a-fib. No DM.
Social/FMH/ROS: Not remarkable.
On exam, Vital was stable. HR was only 76.
She was noticed to have an anisocoria. She blamed her cataract surgery 10 years ago for the cause of unequal sized pupils. But her family believed it was new onet.
Pupil OS 7 mm, Sluggish to light. OD ... 阅读全帖 |
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V*****G
发帖数: 337 | 8 Adie Pupil? Or medication effect?
and
suspected CHF exacerbation.
years ago for the cause of unequal sized pupils. But her family believed it
was new onet. |
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A*******s
发帖数: 9638 | 9 今天下午看到一个case， 与大家分享：
67 yrs old WF with a history of A-fib, presented to ER with diaphoresis and
fatigue for 2 days. She has been on Pradaxa for a-fib. Cardiology suspected CHF exacerbation.
PMH: CAD, CHF and a-fib. No DM.
Social/FMH/ROS: Not remarkable.
On exam, Vital was stable. HR was only 76.
She was noticed to have an anisocoria. She blamed her cataract surgery 10 years ago for the cause of unequal sized pupils. But her family believed it was new onet.
Pupil OS 7 mm, Sluggish to light. OD ... 阅读全帖 |
|
V*****G
发帖数: 337 | 10 Adie Pupil? Or medication effect?
and
suspected CHF exacerbation.
years ago for the cause of unequal sized pupils. But her family believed it
was new onet. |
|
L****n
发帖数: 12932 | 11 There are no conflict if the system is designed to align the interest of
both patient and doctors. If u put their interests on opposite sides,
patient will always lose because it is extremely unequal information wise.
First of all, u need to increase quality control on healthcare professionals
. It's really not necessary to have super smart ones to be a doctor. But u
need someone who is not dumb, and yet dedicated, caring and responsible. To
have enough amount of this kind of people to stay in ... 阅读全帖 |
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l*****9
发帖数: 9501 | 12 http://www.examiner.com/article/despite-obamacare-rollout-progr
Despite Obamacare rollout, Progressives see single-payer health care as goal
December 10, 2013
Among the people who express dissatisfaction with Obamacare (the Affordable
Care Act), the bigger number are actually progressives who were upset by the
contortions Obama went through to preserve profit-making private insurance
companies as the gatekeepers to the health care system.
Progressives wanted a single-payer system which every o... 阅读全帖 |
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C*********n
发帖数: 1083 | 13 China’s move from socialized medicine fuels debate
Special care for those who can afford it becomes lightning rod for criticism
By Li Yan and Luo Jieqi
BEIJING ( Caixin Online ) — Neither specialized treatment nor medical
specialists are required when a “special-needs” patient checks into a
hospital in China.
But the patient’s private room ought to be especially comfortable. Ideally
it should be equipped with a sofa, tea table and big-screen TV. Nurses
should be extra-attentive. And the best sur... 阅读全帖 |
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M******n
发帖数: 138 | 14 That is a good point and thank you for spelling out.
1. "OCEF是个相当松散的组织"
1.1 It does not mean that OCEF cannot have a rigid and motivating procedure
in place.
1.2 It does not mean that volunteers do not want to contribute significant
among of time.
1.3 It does not mean that OCEF cannot have big achievement.
1.4 There were several things that can be improved, I can smell for a group
leader or HR, mainly because they were not told to do so:
1.4.1 Greeting the new person in 48 hours of joining the g... 阅读全帖 |
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c*******e
发帖数: 193 | 15 起草了一份反AA给大学校长和其他工作人员的信。水平有限，错误在所难免，见谅。放
弃版权，各位可随意复制、修改、分发。加以修改后可寄给中小学、政府、官员个人、
法院、或法官个人等等。墙倒众人推，同胞们一定要使用各种方式，在各种场合———
—口头上的，行动上的，法律上的，政策上的，工作中，社区中，学校里，教会里，酒
吧中，尽自己能力，宣传AA的恶劣，为AA拆砖卸瓦。虽然每个人能力影响有限，团结起
来，持之以恒，时间长了就是很大的力量。
主要策略：（1）现行AA违法了平等精神，也违反了当初AA的目的。（2）现行AA黑墨也
是受害者，而不是受益者。体现在ten strong reasons第八条。现行AA人人都是受害者
。当然有人不认可，不过要长期这样宣传。
欢迎指点，谢绝谩骂。
Dear Sir or Madam,
I am writing this letter to respectfully request you to create an equal
education opportunity to all students, regardless of their race, eth... 阅读全帖 |
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s*********5
发帖数: 5637 | 16 【 以下文字转载自 SanDiego 讨论区 】
发信人: spectrum805 (spectrum805), 信区: SanDiego
标 题: 【反SCA5】俺的全家总动员
发信站: BBS 未名空间站 (Mon Feb 24 02:49:08 2014, 美东)
（本文没有版权，请随便搬运全部或部分）
今天老公突然灵光一闪，设计了两幅海报。第一张是借鉴了一位网友的设计，特此谢谢
他。这一张就是如果这个议员不给我们投反对票，我们到时候就把他的名字写到括号里
，明确我们不支持他，让他以后失去政治前途。我们直接把Racism写上去，许多老美一
看马丁路德金和Racism，应该就愿意来支持我们。老公还耐心地辅导了六岁的儿子画了
几只彩色的猴子。儿童画因为毕竟可爱希望能抓到眼球，让别人愿意过来了解，到底是
怎么回事儿呀。
儿子听说要画猴子，十分不解问:“爸爸,这是干什么呀？”
我答道:“爸爸在为你而战呀！”
儿子问：“啊，要流血吗？”
我再解释说：“这是一场不流血的战争。这样你们以后才不会被别人因为你是亚裔才欺
负你呀。”
不知道儿子懂不懂，但是我知道“前人栽树，后人乘凉”。要不是马丁... 阅读全帖 |
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c*********d
发帖数: 9770 | 17 张春桥：论对资产阶级的全面专政（On Exercising All-Round Dictatorship Over
the Bourgeoisie）
无产阶级专政问题，是长期以来马克思主义同修正主义斗争的焦点。列宁说“只有承认
阶级斗争、同时也承认无产阶级专政的人，才是马克思主义者。”
THE question of the dictatorship of the proletariat has long been the focus
of the struggle between Marxism and revisionism. Lenin said, “Only he is a
Marxist who extends the recognition of the class struggle to the recognition
of the dictatorship of the proletariat.” And it is precisely to enable us
to go by Marxism and not revisionism in both theory an... 阅读全帖 |
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m********9
发帖数: 2282 | 18 tax on housing won't solve the problem of unequal income distribution.
Never forget the rules are made by people with power and money, if they
really tax, it will benefit them more for sure.
Don't forget how mass China was when they made everything public owned. |
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p*********e
发帖数: 32207 | 19 转过来了：
Hey guys,
It was my car that was involved and a mistake was made. There were no
intentions of doing anything out of the norm. In fact, you'll notice in the
video that the car was going very slowly in front of the crowd. This was
intentional because we've all watched too many YouTube videos of this sort
of thing happening and wanted to make sure that nobody would get hurt should
anything unexpected happen. Once the car was past the crowd the accelerator
was pushed in a straight-line as I ha... 阅读全帖 |
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L**********y
发帖数: 2525 | 20 这篇文章很有意思
zz from wsj.com
http://online.wsj.com/article/SB10001424052748703673604575550243700895762.html
What the Tea Partiers Really Want
The passion behind the populist insurgency is less about liberty than a
particularly American idea of karma.
By JONATHAN HAIDT
What do the tea partiers really want? The title of a recent book by two of
the movement's leaders offers an answer: "Give Us Liberty: A Tea Party
Manifesto." The authors, Dick Armey and Matt Kibbe, write that "We just want
to be free. ... 阅读全帖 |
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w*******y
发帖数: 60932 | 21 Impact Guns:
http://www.impactguns.com/store/KIMBER-SOLO-SS.html
have the Kimber Solo Carry 9mm Stainless pistol for pre order for $659.
Some details about the gun....
One of the most significant firearm introductions in a generation, the Solo
puts 9mm power in a micro-compact platform with unequaled Kimber quality,
performance and dependability. It was designed from the ground up to be the
finest pistol in its class. Built to last, the Solo features a stainless
steel slide and barrel along w... 阅读全帖 |
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w*******y
发帖数: 60932 | 22 God's story your story is free on Kindle
Link:
http://www.amazon.com/gp/product/B004PYDKEA?
Product Description
Carpools and car crashes, job switches and joint custody, moves and
motionlessness. Is there a cohesive storyline to the chaos, confusion, and
clutter of your daily life? According to well-loved author Max Lucado, the
answer is a resounding yes!So what is the text of your life? With his
unequaled warmth and honesty, Lucado plumbs the depths of your storyline and
comes up smiling. 'Your... 阅读全帖 |
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w*******y
发帖数: 60932 | 23 PSA is doing this deal again, for anyone that missed out during their Black
Friday sale. They are a reputable company with quality parts.
Note that lowers ordered from Dec 22-Jan 8 will not ship until Jan 15, so be
prepared to wait.
Link:
http://www.palmettostatearmory.com/1560.php
quote
After almost a year of working on this project, Palmetto State
Armory is pleased to announce the release of our new AR-15 lower receiver.
These lowers are made using the ... 阅读全帖 |
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a********o
发帖数: 585 | 24 A documentary about two Afghanistan boys trying to travel to England
illegally.They passed Iran, Turkey, Italy. One survived until he kept himself
underneath a truck which is crossing the England String.The other died in the
sea from Turkey to Italy. Very interesting and again, let one to think how
people could be born so unequally. |
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q********y
发帖数: 615 | 25 前几天去看了一眼儿子考k g&t的卷子
很羞愧地觉得很多是我的错而不是儿子的错，交给儿子的词汇量太少了
比如
shallow, curve, column (柱子), unequal
不知道到底是双语的错呢,还是我们父母自己的错.
怎么才能提高词汇量呢 |
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t********r
发帖数: 4908 | 26 ☆─────────────────────────────────────☆
qinqinbaby (青山绿水) 于 (Thu Jul 1 15:00:33 2010, 美东) 提到:
前几天去看了一眼儿子考k g&t的卷子
很羞愧地觉得很多是我的错而不是儿子的错，交给儿子的词汇量太少了
比如
shallow, curve, column (柱子), unequal
不知道到底是双语的错呢,还是我们父母自己的错.
怎么才能提高词汇量呢
☆─────────────────────────────────────☆
fourpigs (大女即将二年级，二儿即将K, 期盼老三中) 于 (Thu Jul 1 15:04:11 2010, 美东) 提到:
太羞愧了！我觉得我家上完一年级的也未必知道这些。
☆─────────────────────────────────────☆
littleice (家有两宝：狗娃猪仔) 于 (Thu Jul 1 15:09:09 2010, 美东) 提到:
哦，这些算是生僻单词吗？
☆───────────────... 阅读全帖 |
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n********e
发帖数: 68 | 27 Would you please say your points clearly? |
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b*******s
发帖数: 2 | 28 I cant agree this more!!
Get along well with everyone, including nonchristian is not forever a good
thing. it is good we have good relationship with others. But dont forget to
remind urself, u are God's chosen poeple and are supposed to be set apart from
the world for holiness. we should be friends with them, but we should not
do/think everything they are doing/thinking. |
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