e****t
发帖数: 766 | 1 suppose, each patient will be measured at 1,2,3,4 time, but there is missing
value at different timepoint.
we fit model as
proc mixed ;
class sub time trt ;
model sub = time trt time * trt;
repeated time / sub = sub type = un ;
lsmeans trt * time / pdiff ;
run;
when calculating effect size,
we use ls Means diff / (SE / sqrt (1/n1 + 1/n2))
here n1 and n2 should be patient number in different group.
or should be patient number in different group by visit (due to missing,
observations at each visit... 阅读全帖 |
|
j******4
发帖数: 6090 | 2 variables: Age(in month) Female(dummy), Smoke(dummy)
outcome(counts): time1 time2 time3 time4
Reshaped into long form then the data looks like this:
ID time Y Age Female Smoke
1 1 0 30 1 1
1 2 1 30 1 1
1 3 5 30 1 1
1 4 2 30 1 1
...
可以用GEE或者mixed model，但是据我观察，在 time=1 的时候，会有很多 Y = 0，我
在想 Zero-Inflated-Poisson(ZIP) 是否可以用来分析这种repeated measures的data，要
如何用呢？
多谢各位~ |
|
i******e
发帖数: 1811 | 3 could a bibd experiment be constructed for five treatments to be repeated
four times with a block of size of 4? |
|
m*****x
发帖数: 10 | 4 unbalanced模型的repeated measures ANOVA
除了SPSS和SAS，还有哪家可以实现？
R可以吗？有没有公开的算法可以找到？ |
|
|
y*****w
发帖数: 1350 | 6 Longitudinal analysis, repeated measures analysis, and time series analysis,
谁能给个权威的比较（出处）？它们的定义，相似处，不同处，各自的适用范围？谢
谢！ |
|
Y****a
发帖数: 243 | 7 先给个不是权威的比较，抛砖引玉
repeated measuer 很多情况下是用于experimental design，用来比较两个treatments
的影响，效果之类。实验个体相同，意在消除不同sample可能引入的无法衡量的
baseline差别。两个treatment之间会加入一个washout period，assumption经过这个
washout period之后，前一组treatment的影响会全部消失，实验个体全部回归初始状
态。
longitudinal 一般是observational的，在多个时间点观测同一组变量，并研究这组变
量随着时间的变化。
time series 是指一种统计模型/分析方法。时间序列里的观测点一般比longitudinal
的要密集一些，大多意于预测，希望被观测的变量的变化是与时间相关的，具有某种可
模型化的规律。
他们之间在某种情况下可互换使用，还是主要看应用的场合和学科。 |
|
f****1
发帖数: 289 | 8 比如一个复杂的experimental design, 怎么specify
repeated /subject 呀？
多谢！ |
|
y**3
发帖数: 267 | 9 thanks again
A chemical level in the drug is the dependent variable. I model the jump
from one level to another leve, which is event. So multiple events. Now
another question, the events types are different as well. For example, the
first jump is from level 1 to 2, another jump is from 2-3 then another jump
is 1-3. Which of the methods for repeated events also takes care of this? |
|
y**3
发帖数: 267 | 10 For model methods used for repeated events such as counting process,
marginal model,is it theroretically correct to look into future? If so, can
the current available software such as sas R output individual risk
estimates at a specififc time especially at a time beyond the observed time
for each individual pateint level data? Or output the survival time for
individual patient for the event?
Any expert can provide expereince?
Thanks |
|
y**3
发帖数: 267 | 11 Thanks for the answer. It is very helpful. Will dig mroe aobut those two
models.
Can you elaborate a little for me?
So the models can be used to generate future predictions such as hazard
probabilities for the next month from date of censoring for scoring? Then
what assumption is used? Have you ever to put repeated event survival model
into production tp monitor fututre event?
Btw,I read somewhere the counting process is too easy to look into future.IS
that correct:) |
|
y**3
发帖数: 267 | 12 thanks! Danou!
I did some research on repeated events survial model. As you said, a shared
frailty model fits my purpose well.
I have a question for what you said-For frailty models, could plug in the
empirical Bayes estimate of the prediction. Does this mean for time varying(
dependnet) covariates, that I dont need forecast their future path when
scoring to the near future?
thanks again
time. |
|
t*****8
发帖数: 157 | 13 请问我想做一个repeated measure logit的model，是不是可以参考做传统的logit方法
。比如说用proc reg检查共线性，variable选择或ks 的检验。先谢谢啦。 |
|
K******c
发帖数: 619 | 14 共线性是covariates之间的吧？你的repeated measure是 outcome 还是 covariates
还是都有？ |
|
t*****8
发帖数: 157 | 15 是检测covariate的共线性,repeated measure 是指outcome.跟传统logit 模型的数据
一样 1或0 只不过数据每行之间是不独立的 是人的多次event. |
|
y**3
发帖数: 267 | 16 Is the event time-dependent? repeated events survival model? |
|
w*****r
发帖数: 165 | 17 求助这里的大牛：
我的数据有3个group，5个时间点。用 R 里面的 lme 来做repeated measure ANOVA:
imgdata.lme <- lme(measdat ~ Group * Time, random = ~1 | Subject,
data=imgdata, method="REML")
我现在想比较每个时间点的group间（A,B,C) 的pair-wise的区别 （A vs. B, B vs. C
, A vs. C)。不需要跨时间点比较。所以会是：
T1: A-B
T1: A-C
T1: B-C
T2: A-B
T2: A-C
T2: B-C
T3: A-B
T3: A-C
T3: B-C
T4: A-B
T4: A-C
T4: B-C
T5: A-B
T5: A-C
T5: B-C
但需要correct for multiple comparisons，比如Tukey方法。我试了用glht，但对于
该怎么设contrast matrix感觉很晕。求指点。
谢谢大家。 |
|
|
C**********r
发帖数: 8189 | 19 【 以下文字转载自 WaterWorld 讨论区 】
发信人: iNationalist (还我河山), 信区: WaterWorld
标 题: Re: 个人感谢一下repeating，鞠躬
发信站: BBS 未名空间站 (Mon Jan 20 17:59:12 2014, 美东)
支那猪不要在这里大声喧哗，滚远点一边去 |
|
m*********k
发帖数: 10521 | 20 [ChinaNews] 十大话题的奖励 500
成功奖励 500 伪币的用户: repeating
扣除版面:(ChinaNews)500伪币成功 |
|
t*******y
发帖数: 11968 | 21 【 以下文字转载自 LoveNLust 讨论区 】
发信人: talkdirty (做爱不成仁义在), 信区: LoveNLust
标 题: [Oscar主题活动]How many times would you repeat watching a
发信站: BBS 未名空间站 (Fri Feb 19 05:30:58 2010, 美东)
This is another one of those questions that have no clear answers or should
not have one. Quite like the one with egg and chicken; or "Do you love me?"
or "who b/w me and your mother would you save first when we are both
drowning."
"Good Will Hunting" is a movie I watch over and over. "Why?" you may ask.
Because I like it.
Why |
|
|
|
w*******y
发帖数: 60932 | 24 Airlink101 6-in-1 Wireless N 300Mbps Multi-Function Access Point,Wireless
Bridge,Repeater,AP Client with 5 Ports Ethernet Switch, PS3 XBOX 360 Wii
Gaming Adapter
Coupon Code: MLC9G26N limit 200 uses
|
|
|
|
w*******y
发帖数: 60932 | 27 So got a text from T-mobile saying they are issuing free signal boosters to
customers:
Here is the Key:
1. You must be on a 69 or higher family or 60 or higher individual. Others
YMMV even more.
2. This will renew your contract 24 months from today, but will not affect
upgrade eligibility.
3. You must return the equipment when you cancel service.
How to get it:
Call 611
On the IVR prompt say magic word 'cancel' or go to general customer service
and ask for loyalty.
Magic Questions: Do you have a... 阅读全帖 |
|
g********n
发帖数: 2314 | 28 By KELLY CURRAN
May 27, 2009 10:28 AM CST
Advertisements
Existing-home sales rose in April with strong activity in lower price ranges
, particularly from repeat buyers, according to data released today from the
National Association of Realtors.
First-timers, on the other hand, declined to 40% of market sales from 53% in
March.
Existing-home sales — including single-family, townhomes, condominiums and
co-ops – increased 2.9% to a seasonally adjusted annual rate of 4.68m units
in April from a pace... 阅读全帖 |
|
g*y
发帖数: 2354 | 29 全部是美东时间
Sunday, January 13
6:30 pm - 7:00 am: First Round (ESPN2, Live)
Monday, January 14
7:00 am - 2:00 pm: First Round (Tennis Channel, Repeat)
2:00 pm - 5:00 pm: First Round (ESPN2, Repeat)
5:00 pm - 7:00 pm: First Round (Tennis Channel, Repeat)
7:00 pm - 9:00 pm: First Round (Tennis Channel, Live)
9:00 pm - 7:00 am: First Round (ESPN2, Live)
Tuesday, January 15
7:00 am - 2:00 pm: First Round (Tennis Channel, Repeat)
2:00 pm - 5:00 pm: First Round (ESPN2, Repeat)
5:00 pm - 7:00 pm: First Rou... 阅读全帖 |
|
f**d
发帖数: 768 | 30 这是一本计算神经科学的优秀著作，全文拷贝这里（图和公式缺），有兴趣的同学可以
阅读
如需要，我可以分享PDF文件（－－仅供个人学习，无商业用途）
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖 |
|
f******g
发帖数: 1697 | 31 ☆─────────────────────────────────────☆
tgbqaz (qz) 于 (Sat May 21 16:30:23 2011, 美东) 提到:
旧金山bart一站路2分钟竟然要6刀，相当于40块钱人民币
南京，广州，上海地铁干净舒适豪华，比美国轨道交通先进50倍，才2块钱
中国买票都是触摸式电子售票机，容易操作，
美国这里老古董，我和1个捷克人，2个德国人，琢磨了8分钟，才搞清楚怎么买票
中国服务人员，美丽动人，笑容可掬，答疑解难
美国一个老墨大妈，肥得象头猪，坐在亭子里，爱理不理，阴死阳活
☆─────────────────────────────────────☆
adrianchen (sonolulu) 于 (Sat May 21 16:44:00 2011, 美东) 提到:
那加拿大的是不是也很垃圾呢？而且还跟着美国垃圾。
☆─────────────────────────────────────☆
sixteenday1 (ee) 于 (Sat May 21 17:08:28 2011, 美东) 提到:
... 阅读全帖 |
|
R*****t
发帖数: 2115 | 32 1. 视而不见
虽然我家现在养的是两只猫，但在女儿成长过程中养过其它宠物，包括狗。一条雪白的
爱斯基摩纯种狗Wolfie伴随着我们全家十多年，带给我们许多欢乐和美好回忆。给它起
与音乐家莫扎特(Wolfgang Amadeous Mozart)同样的名字（注：Wolfie是莫扎特妻子对
他名字Wolfgang的昵称）是因为我们家的Wolfie能抑扬顿挫地模仿许多声音，美妙动听
。它健在时，每当我们回家用钥匙开门，我们就能听到它在屋内发出的欢快叫声；一打
开门，它就会迎上前来、兴奋地扑到我们身上，与我们亲热。它刚离开不久的一段时间
里，我回家开门时经常隐隐约约听到它的叫声，当然那是因为思念带来的幻觉。
后来，我家真的又有了“狗”叫声。记不清具体时间，只记得最初发生在一次我从跑步
俱乐部集体训练后回家时：刚用钥匙开门，我就听到屋内“狗”叫声；推开门，就看到
先生一面学狗叫，一面迎上前来、微笑着说“我象Wolfie一样欢迎女主人回家”。那次
，欢笑之余，我的眼睛湿润了，包含着被先生感动，也包含着对Wolfie的思念。从那以
后，我家时常有先生模仿的“狗”叫声。如果我回家开门时听不到那熟悉的声... 阅读全帖 |
|
S*A
发帖数: 7142 | 33 没法 universal repeat 而不产生其他问题.
Repeat 数据包需要先收下来，再发。不能同时收发，这样发会干扰
原来的收。被 repeat 的包如果是简单 repeat, AP 就有可能收到重复
数据包，甚至有多个 repeater 之间反复 repeat 那就把信道暴掉了。
Repeat 需要解决的一个重要问题是，如何保证同一个数据包 AP
不会接受两次。
所以凡是需要知道加密网络 SSID 和 密码的才 repeat 的其实都是做了
定向 mash routing。否则简单 repeat 加密过的数据好了。
AP 的访问格式 MAC 地址是， （SRC， AP ， DST）。
AP 只接受发给自己的数据包。然后 repeater 其实是在做个 MAC
地址级别的 routing. 你的设备需要指定发给 （SRC， REPEATER， DST）
然后 repeater 发给 （SRC，AP， DST） 或者 （REPEATER, AP, DST)
都会出问题。
所以 WDS 做的是 （SRC， REPEATER， PARENT AP， DST）
要不你提议一个方法如何... 阅读全帖 |
|
b*****9
发帖数: 8922 | 34 ☆─────────────────────────────────────☆
Missy02 (--) 于 (Mon Aug 16 00:31:20 2010, 美东) 提到:
家庭主妇的角度哈,闲者也是闲着...某一线城市
1.吃
比想象的贵,超市里很多东西跟美国差不多,不少贵过美国,譬如苹果6.8一斤,猪肉(瘦肉
)27一斤,三文鱼78一斤还是特价.据说菜市场便宜些,还没去过.
餐馆多于牛毛,价钱自然也差很远,街边小摊摊还没吃过,餐馆的话,50以内吃一顿基本没
问题(据说很多到公司楼下送午餐的,28一份),贵的就不说了,大家都知道(听过)
2.住
肯定不能跟美国比哈,除非你从纽约来的.到处都是高楼,随便一指就是几千万的房子,递
楼盘广告的也满世界都是,听说卖楼的小姐很多大学毕业的,希望近水楼台,把自己和房
子一步解决了
3.行
人多,出租车也多,不贵,应该说还算方便,当然如果手里东西多了就不方便哈.自己车还
没买,就算买了也不会出门就开车的,堵车厉害,趴车也不容易.
4.其它
要说国内最大的好处是人工便宜.保母,还有出去做脸,做指甲,按摩都便宜得不行.那天
出去做了手和... 阅读全帖 |
|
s******n
发帖数: 518 | 35 【 以下文字转载自 History 讨论区 】
发信人: shaodian (有熊), 信区: History
标 题: 美国生物实验室泄露
发信站: BBS 未名空间站 (Sun Mar 22 15:25:05 2020, 美东)
Google翻译一次只能3900字符。
https://www.usatoday.com/story/news/2015/05/28/biolabs-pathogens-location-
incidents/26587505/
Investigation reveals hundreds of accidents, safety violations and near
misses put people at risk
Alison Young and Nick Penzenstadler, USA TODAY
Vials of bioterror bacteria have gone missing. Lab mice infected with deadly
viruses have escaped, and wild rodents have b... 阅读全帖 |
|
p******e
发帖数: 897 | 36 o say that President Donald Trump has a casual relationship with the truth
would be a gross understatement. He has repeatedly cited debunked conspiracy
theories, pushed voter fraud myths, and embellished his record and
accomplishments. The barrage of falsehoods has been so furious that
journalists have taken to issuing instant fact-checks during press
conferences and calling out false statements during cable news broadcasts.
All presidents lie, but lying so brazenly and so frequently about even ... 阅读全帖 |
|
d**h
发帖数: 159 | 37 ☆─────────────────────────────────────☆
dash2000 (DASH) 于 (Tue Dec 11 22:55:58 2012, 美东) 提到:
有利于偶拿灌水包子和提高忠诚度。
目标是增强体质，维持体重和保持饮食健康，不是比赛。龟速勿笑。明天开始。
之前记录
http://www.mitbbs.com/article/Running/31596901_0.html
现在状态：
奔4，男，144磅，5‘10“，饮食偏素，4个月前开始计划每天跑。
目标一个：每天MAF下跑1-2小时。
---------------12/10星期-------------
NB730上有438迈。
Hattori（G/C）上有50迈左右。
WR10 上有199迈.
seeya 28迈
bikila 44迈
-------------------------------------
12/12
环境：58F,石子土路,WR10
历时：1:22:29
路程 8.92 迈
心跳（avg）：154bpm
速度: 9:15per mi
热量消耗：1000cal。
晚... 阅读全帖 |
|
p*****u
发帖数: 8 | 38 退一步想想,其实做个无关痛痒的朋友也没什么不好,我喜欢什么你都了如指掌,我也会
因为你喜欢的东西而深受影响,不知不觉的就也喜欢上那些东西,正因为无关痛痒,所以
也不会那么痛苦,君子之交淡如水,一生的承诺你既然给不起,倒不如就像你我这样,做不
痛不痒的朋友
Khmer Kid - Smoke Weed
weeeeeeed (smoke weed)
blazin up on them indo, for my, khmai empire to ride
spit my rhyme about my life on this M, I C tonite
rippin through this show u know
til all of ur speakers blow
bass sticcin up so high like me
we need time to smoke the seed (repeat)
blazin up on this buddha leaves
wen u get ready to blow
im about to start this shit off
let... 阅读全帖 |
|
G*******s
发帖数: 4956 | 39 Blinded By Tradition:
An Open Letter to Dave Hunt
Regarding His Newly Published Attack Upon the Reformation, What Love Is This
? Calvinism's Misrepresentation of God
James White
Updated 5/16/02, see bottom of file
Dear Dave,
In the period of time since I finally received my own copy of your book (you
may recall I scanned through it while standing at your table in St. Louis a
t the PFO Conference) I have gone through a number of different emotions. A
t first I was just going to do one Dividing ... 阅读全帖 |
|
S*A
发帖数: 7142 | 40 你试过单独调试过你的 wifi extender 确实可以用吗？
你这个听起来像是 repeater 从来就没有真正 work 过。
一个比较常见的情况是，你的 wifi repeater 和你的主 AP 使用的 WDS
不兼容。例如一个是用 broadcomm 芯片另外一个是用 atheros 芯片，
这两家 WDS 都可以和自己家的连，但是相互就连不上。
路由器的 WDS 说明都是按照最保守的方案建议，建议你的 repeater 使用
同样型号，同样 Rev 的路由器。也就说，用其他 vendor 的 repeater 是不
建议的。但是通常同一个 vendor 的其他型号，只要wifi 芯片是同一个 vendor
就可以了。
还有选择 repeater 的位置也很重要。如果是无线 repeat 你需要在收到主
AP 信号比较好的地方 repeat。帮助信号绕过障碍物。例如我家有个冰箱
和热水器给房间挡了信号，后来我发些在冰箱顶放 WDS AP （repeater)
效果就很好，避开了热水器和冰箱，全部房间信号都有了。
如果主 AP 放冰箱顶我怀疑一个就够用了。可惜那里拉线不方便。... 阅读全帖 |
|
|
q*d
发帖数: 22178 | 42 ☆─────────────────────────────────────☆
swjtuer (swjtuer) 于 (Tue Mar 30 23:56:30 2010, 美东) 提到:
星期一
早餐 牛奶，煮鸡蛋，玉米馒头，榨菜
早点 芦柑
午餐 中大：绿豆饭，木须肉，海米冬瓜，棒骨菠菜汤
小婴：绿豆饭，三叶瓜炒肉，海米冬瓜，棒骨菠菜汤
午点 冰糖山楂水，蔬菜饼
晚餐 棒骨冬苋菜瘦肉粥，卤肉秋叶夹馍
星期二
早餐 牛奶，蒸鸡蛋，枣泥糕
早点 香蕉
午餐 中大：胡萝卜饭，芹菜炒牛肉，珊瑚豆腐，棒骨凤尾汤
小婴：胡萝卜饭，芹菜炒肉，珊瑚豆腐，棒骨凤尾汤
午点 果汁，卤猪肝
晚餐 豌豆肉末焖饭，番茄虾皮紫菜汤
星期三
早餐 南瓜粥，卤蛋，如意肉卷
早点 脐橙
午餐 中大：金银饭，咸烧白，海米儿菜，棒骨冬苋菜汤
小婴：金银饭，樱桃肉，海米儿菜，棒骨冬苋菜汤
午点 牛奶，蛋卷
晚餐 米饭，蒜苔炒肉，芙蓉蒸蛋，棒骨海带萝卜汤
星期四
早餐 牛奶，蒸鸡蛋，奶香馒头
早点 苹果
午餐 中大：南瓜饭，什锦鱼丸，韭菜炒豆干，番茄菌类鱼汤
... 阅读全帖 |
|
D*****r
发帖数: 6791 | 43 http://www.gutenberg.org/files/37726/37726-h/37726-h.htm
IN GOD'S WAY
SCHOOL-DAYS
I.
In the melting snow on the hill-side by the sea, in the last rays of the
evening sun, stood a boy of fourteen, awestruck. He looked toward the west,
out across the sea; he looked toward the east, over town and shore and the
broad hills; in the background still higher peaks rose far away in the clear
sky.
The storm had lasted a long time; it had been more terrible, too, than any
the old people could remember. In ... 阅读全帖 |
|
y***r
发帖数: 16594 | 44 TO WHOM IT MAY CONCERN
On Saturday February 2nd I placed an order for a dell XPS 8500 computer
through amazon.com. After spending
some time reading reviews on various web sites I was confident that this was
a good choice for a desktop computer.
When the computer arrived on Tuesday February the 5th I was excited as I was
between jobs and had time to set
up my new system. Equipped with two brand new monitors from Costco, one a 32
inch TV and one a 24 inch
monitor I had the makings of the ideal com... 阅读全帖 |
|
w******t
发帖数: 16937 | 45 分特，想看专业的？
看这个。声明：因为网络安全原因，我删去了一些必须删去的内容。
http://schema.org/WebPage">Google
|
|
