a***e
发帖数: 102 | 1 一写contrast就犯晕，请大牛帮忙给看一下对不对， group是1到6，10mg 是1， 以此
类推， EE 是5， PBO是6， 用的是
logistic reg。多谢了！
roc logistic data=adc descending;
class TRTPN;
model RFL=TRTPN /expb firth;
oddsratio TRTPN ;
contrast '10mg vs EE' trtpn 1 0 0 0 -1 / estimate=exp;
contrast '20mg vs EE' trtpn 0 1 0 0 -1 / estimate=exp;
contrast '35mg vs EE' trtpn 0 0 1 0 -1 / estimate=exp;
contrast '55mg vs EE' trtpn 0 0 0 1 -1 / estimate=exp;
contrast 'ALLTRT vs EE' trtpn 1 1 1 1 -1 / estimate=exp;
contrast '10mg... 阅读全帖 |
|
i*********5
发帖数: 19210 | 2 http://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&v
CONTRAST SHOWERS
Using Contrast Showers To Speed Recovery
BY MARK TWIGHT
In early-November a magazine asked me to comment about contrast showers.
Because I know the piece they eventually publish will be short on details I
elaborated on some concepts for the article below.
When and why did you first start using the hot/cold shower?
I started using contrast showers in the mid-90s at the behest of my coach.
The point is to speed recove... 阅读全帖 |
|
z**********i
发帖数: 88 | 3 I will appreciate any input you may give.
I am runing glm procedure, but I get one more test significant in contrast
than in pairwise multiple comparison. I don't know why. Below is the code
and output.
proc glm data=out.final;
class dx;
format dx dx4x.;
model &v =dx;
lsmeans dx;
means dx/tukey;
contrast "demented vs normal" dx 1 0 -1;
contrast "demented vs mci" dx 1 -1 0;
contrast "mci vs normal" dx 0 1 -1;
run;
1. Least Squares Means;
Least Squares Means
Q1_PARTAPP
dx ... 阅读全帖 |
|
|
m*i
发帖数: 8 | 5 Hi,everybody
I have a question about how to write contrast in proc genmod to test whether
the effect of the two dummy variables are simultaneously zero, is the
following contrast correct? If not, how should I write the contrast?
Thanks in advance and happy holiday.
MDI
proc genmod data=work.tmp descending;
title "GEE";
class IDSubject dum1(ref='0') dum2(ref='0') /param=ref;
model &depVar=dum1 dum2/link=logit dist=bin offset=logmiles lrci waldci
type3;
repeated subject=IDSubject/type=ind;... 阅读全帖 |
|
w*****1
发帖数: 473 | 6 【 以下文字转载自 Statistics 讨论区 】
发信人: wz99331 (dotti), 信区: Statistics
标 题: ask for help about sas contrast statement-包子酬谢
关键字: baow
发信站: BBS 未名空间站 (Wed Oct 18 22:53:01 2017, 美东)
Dear all,
I am trying to study if the SBT(a phenotype) change from timepoint 3 to
timepoint 7 are different for case and control. The condition has two
levels(case vs control) and timepoint have three levels(0,3,7), I need to
write a contrast statement,here is my code:
contrast 'SBT change over time for case vs control '
cond... 阅读全帖 |
|
n******g
发帖数: 662 | 7 【 以下文字转载自 Chemistry 讨论区 】
发信人: nantsing (猛龙过江), 信区: Chemistry
标 题: 请教：dual imaging contrast
发信站: BBS 未名空间站 (Sun Nov 16 00:06:25 2014, 美东)
最近在看一些dual imaging contrast的文章，感觉所有读过的文章没有讲清为什么要
搞dual imaging contrast。它到底在医学上有什么真正的用途，用单一的contrast不
是挺好吗？
有大牛请指教。 |
|
w*****1
发帖数: 473 | 8 【 以下文字转载自 Statistics 讨论区 】
发信人: wz99331 (dotti), 信区: Statistics
标 题: ask for help about sas contrast statement-包子酬谢
关键字: baow
发信站: BBS 未名空间站 (Wed Oct 18 22:53:01 2017, 美东)
Dear all,
I am trying to study if the SBT(a phenotype) change from timepoint 3 to
timepoint 7 are different for case and control. The condition has two
levels(case vs control) and timepoint have three levels(0,3,7), I need to
write a contrast statement,here is my code:
contrast 'SBT change over time for case vs control '
cond... 阅读全帖 |
|
w*****1
发帖数: 473 | 9 【 以下文字转载自 Statistics 讨论区 】
发信人: wz99331 (dotti), 信区: Statistics
标 题: ask for help about sas contrast statement-包子酬谢
关键字: baow
发信站: BBS 未名空间站 (Wed Oct 18 22:53:01 2017, 美东)
Dear all,
I am trying to study if the SBT(a phenotype) change from timepoint 3 to
timepoint 7 are different for case and control. The condition has two
levels(case vs control) and timepoint have three levels(0,3,7), I need to
write a contrast statement,here is my code:
contrast 'SBT change over time for case vs control '
cond... 阅读全帖 |
|
w*****1
发帖数: 473 | 10 【 以下文字转载自 Statistics 讨论区 】
发信人: wz99331 (dotti), 信区: Statistics
标 题: ask for help about sas contrast statement-包子酬谢
关键字: baow
发信站: BBS 未名空间站 (Wed Oct 18 22:53:01 2017, 美东)
Dear all,
I am trying to study if the SBT(a phenotype) change from timepoint 3 to
timepoint 7 are different for case and control. The condition has two
levels(case vs control) and timepoint have three levels(0,3,7), I need to
write a contrast statement,here is my code:
contrast 'SBT change over time for case vs control '
cond... 阅读全帖 |
|
g*****n
发帖数: 21 | 11 手指中间的一段，一按就有些痛，有很久时间了（2年左右），最近跟医生说起，让我
去照x光，有阴影，又让照了MRI。 现在还不清楚，又说让照mri with contrast。我两
年办前得了甲亢，不知道是不是报告里的brown tumor。
这是MRI的检验报告：
1. Nonspecific lesion involving the medullary portion of of the middle
phalanx
left hand fourth digit without significant expansion of the bone but with
mild
cortical thinning and slightly ill-defined margins. Associated edema of the
adjacent surrounding soft tissues. Finding is considered nonspecific but
definitive cyst or fluid fluid levels... 阅读全帖 |
|
i*********5
发帖数: 19210 | 12 大家肯定都听说或者试过ice bath，但是ice bath实施起来比较麻烦。我的按摩师给我
推荐了contrast showers，我觉得很不错。
CONTRAST SHOWERS
1. 3 minutes shower followed by 30 second cold shower.
2. Alternate back and forth from hot to cold as stated above. One
treatment should be 3 to 4 complete rotations of hot to cold.
3. Alternately, you can reduce the duration of each application of hot
and cold by only doing 1 minute hot followed by 10 seconds cold. The 3 to 4
complete rotations is still consistent.
4. You should not allow yo... 阅读全帖 |
|
n******g
发帖数: 662 | 13 最近在看一些dual imaging contrast的文章，感觉所有读过的文章没有讲清为什么要
搞dual imaging contrast。它到底在医学上有什么真正的用途，用单一的contrast不
是挺好吗？
有大牛请指教。 |
|
o******6
发帖数: 538 | 14 ☆─────────────────────────────────────☆
sweetme (~~ ~~~~~) 于 (Thu Feb 19 21:03:48 2009) 提到:
比如：
model Y＝A B A*B
B有两个level 1，2， A是 continuous。。
我要比较B＝1 vs B=2，怎么写contrast statement？
☆─────────────────────────────────────☆
WEIMINGSPACE (想也白想) 于 (Fri Feb 20 17:06:14 2009) 提到:
Then you have to do a contrast at different values of A.
say A's mean is 26
contrast "B1-B2 at A=26" B 1 -1 B*A 26 -26 0 0 ; |
|
w*****1
发帖数: 473 | 15 Dear all,
I am trying to study if the SBT(a phenotype) change from timepoint 3 to
timepoint 7 are different for case and control. The condition has two
levels(case vs control) and timepoint have three levels(0,3,7), I need to
write a contrast statement,here is my code:
contrast 'SBT change over time for case vs control '
condition*timepoint 0 -0.5 0.5 0 0.5 -0.5 ;
in the contrast statement, I also have to include the main effects.
Could you tell me for my case how should I write the sas code inc... 阅读全帖 |
|
w*******y
发帖数: 60932 | 16 Movable Men's Ring With Contrasting Silver-Tone Stripes in Stainless Steel -
Available in Many Sizes!
$4.99 + Free Shipping
Link:
http://1saleaday.com/flash/rrs141/
This handsome stainless steel men's ring features a movable band with
contrasting silver-tone stripes, and projects an edgy, yet conservative
attitude. Whether worn as a modern wedding band or an everyday accessory, it
's sure to complement any style.
Specs
Metal: Stainless Steel
Size: 9, 10, 11, 12, 13
Jewelry Category: Stainless St... 阅读全帖 |
|
l****z
发帖数: 29846 | 17 "By contrast, Obama’s predecessor, George W. Bush almost never missed his
daily intelligence meeting"
by Rick aka Mr. Brutally Honest
A revealing piece over the Washington Post by Marc Thiessen needs to get
much wider play:
President Obama is touting his foreign policy experience on the campaign
trail, but startling new statistics suggest that national security has not
necessarily been the personal priority the president makes it out to be. It
turns out that more than half the time, the comm... 阅读全帖 |
|
R****y
发帖数: 411 | 18 Start with MRI with contrast, biopsy is a lot more invasive than getting IV
contrast ( assuming your renal function is ok). I don't see a lot of key
words indication malignant features other than indistinct margin and edema
which are nonspecific descriptors. |
|
r****n
发帖数: 239 | 19 比如 Response time 8ms / Contrast ratio 30000:1 vs Response time 5ms/
Contrast ratio 8000 : 1 ?
多谢！ |
|
t******8
发帖数: 2803 | 20 A7r2和A7r3都有399个Phase Detection AF points。这个可以理解，就是传感器上一组
像朝不同方向斜着排列，分别测镜头边缘入射过来的光来计算该怎么调焦。
但是号称A7r2有25个Contrast Detection AF points，而A7r3有425个这样的对焦点。
Contrast Detection对焦点到底是什么鬼？难道CDAF不都是电脑按照sensor输出的图像
微调对焦直到所选区域锐度极大值么？为什么会有建造在传感器上的物理CDAF点？ |
|
f********s
发帖数: 17 | 21 比如某个treatment,如果是between-subject就没有影响，但是within-subject就有影响
了，一定要是有contrast，请问有这样的理论支持吗？为什么一定要在存在contrast的情
况下才会有作用呢？我现在在试着从attention shift方面解释，也不知道行不行。各位
觉得呢？多谢了！ |
|
h*t
发帖数: 187 | 22 各位达人：
偶现在用R package gee 做一个GEE的regression，比如log(Y)=beta0+x*beta1，如果
我想测试H0:beta1=1，contrasts应该怎么写？
这个package里面没有给contrasts的例子，自己试了几次都不对。
另外，对同样的这组数据，如果用R做Generalized Linear Mixed-effected Model，用
哪个package的哪个命令比较好？ |
|
s*********o
发帖数: 42 | 23 如果要比较varialbe prog 的level 2 vs. level 3, 以及group 1 和 group 2 之间的
区别。prog 一共有3个level.
sas code如下：
proc logistic data = hsb2;
class prog/param=glm;
model hiwrite(event="1")=female read math prog;
contrast '1 vs 2 of prog' prog 1 -1 0/estimate;
run;
请问这里是怎样给prog做coding 的，为什么prog是1 -1 0, 为什么 contrast '1 vs 2
of prog' ,给出来的是1 vs 3 and 2 vs 3的odds ratio estimate？ 谢谢。 |
|
t****x
发帖数: 1650 | 24 这两句有问题
contrast 'ALLTRT vs EE' trtpn 1 1 1 1 -1 / estimate=exp;
contrast "ALLTRT vs PBO" trtpn 2 2 2 2 1 / estimate = exp;
需要estimate的话还要加个divider之类，你要是看不清就加个PARAM=GLM吧 |
|
w*******y
发帖数: 60932 | 25 Adorama's deal of day Optoma PK102 Pico Pocket Projector with 2000:1
Contrast Ratio, LED Light Source Lasts Over 20,000 Hour:
http://www.adorama.com/OUPK102.html
$169.99 - Ships Free
Item Includes
Optoma PK102 Pico Pocket Projector - Power Adapter - Rechargeable Li-ion
Battery - Universal to Male USB Cable - Standard A/V Cable (RCA to Mini-Jack
) - Universal to VGA Cable - Tripod Adapter - Bag - Optoma 1 Year Parts &
Labor and 90 Days on Battery Limited Warranty
Description
The Optoma PK102 P... 阅读全帖 |
|
w*******y
发帖数: 60932 | 26 Link:
http://www.newegg.com/Product/Product.aspx?Item=N82E16824262017
quote
Display
Screen Size
23"
LED Backlight
No
Widescreen
Yes
Recommended Resolution
1920 x 1080
Viewing Angle
170H) / 160V)
Pixel Pitch
0.266mm
Display Colors
16.7 Million
Brightness
300 cd/m2
Contrast Ratio
15,000:1 X-Contrast/DCR (1000:1)
Response Time
5ms
Panel
Active Matrix, TFT LCD
|
|
l****z
发帖数: 29846 | 27 by Rick aka Mr. Brutally Honest
Watch George W. Bush and his lovely wife at the presser announcing the
official hanging of their respective portraits and be warmed by their charm,
their humor, their wit, their graciousness, their demeanor, their
selflessness.
A tremendous contrast:
Bush versus Obama is like comparing class versus trash. I will be the first
to admit I was not a huge Bush supporter, although I think all the stuff he
did that got messed up he did it with good intentions, but I woul... 阅读全帖 |
|
w*********r
发帖数: 5995 | 28 我想卖的物品:
Draper High-Contrast HDTV Motoriz Screen
单张面值:
768
可接受的价格 (required):
340
物品新旧要求:
brand new
邮寄方式要求:
ＹＬ
买卖双方谁承担邮寄损失(required if not code only):
付款方式说明:
boa, check, paypal
其他补充说明:
http://www.amazon.com/gp/product/B000N29STO/ref=ox_ya_os_product
广告的有效期:
物品来源 (required for ALL cards!):
我的联系方式:
warranty期限: |
|
|
a*****g
发帖数: 19398 | 30 Abstract.
Self-explaining has been repeatedly shown to result in positive learning
outcomes for students in a wide variety of disciplines. However,
there are two potential accounts for why self-explaining works.
First, those who self-explain experience more content than those who do
not. Second, there are differences in the activity of generating the
explanations versus merely comprehending them. To compare these two accounts
, the present in vivo classroom study, conducted ... 阅读全帖 |
|
c****n
发帖数: 587 | 31 看你主要干什么了：
玩游戏，看节奏快的节目（体育，枪战片），就需要response time 快的
电视经常白天用，而且摆放位置附近有强光，就需要contrast ratio 大的
我随便说的，错了不负责。最好自己查查 |
|
d******u
发帖数: 1142 | 32 最近一直觉得身体恢复得不好，今天终于听从版上大牛的建议，鼓起勇气洗了个
contrast shower，感觉就最开始刺激一点，没有我想像的那么难，打算试一段时间，
看看效果如何。 |
|
|
d*****0
发帖数: 68029 | 34 如果Contrast AF能达到革命机的速度，可以一举解决对焦点分布不广以及边缘点精度不高的问题。以后相位对焦用来追焦，反差对焦用来摆拍人像，岂不两全其美。当然最好能配上触摸屏，能指哪儿打哪儿。估计在下一代入门单反里面会出现这样的配置。 |
|
|
C********e
发帖数: 219 | 36 微单现在25 contrast + 179 phase的AF跟一般单反几十个点比怎么样？ |
|
c*****e
发帖数: 757 | 37 我的理解是相机集成一些像素在一起进行Contrast Detection的分析，即一个相位对焦
点，或者对焦区域。这些所谓的相位对焦点并不是在传感器上的物理对焦点。 |
|
l*****0
发帖数: 299 | 38 Contrast limited adaptive histogram equalization有什么缺点吗？ 处理后的图像
局部都很清晰，不知哪位高人知道CLAHE不适用的例子？ |
|
l*****0
发帖数: 299 | 39 Contrast limited adaptive histogram equalization有什么缺点吗？ 处理后的图像
局部都很清晰，不知哪位高人知道CLAHE不适用的例子？ |
|
q*d
发帖数: 20 | 40 从网上下了一扫描的书， 可惜对比度不是很深， 字体看起来有点浅，
请问， acrobat 可以调contrast 嘛？ 或者有其他的工具可以把字体变得深一点？
Thanks a lot! |
|
l*****0
发帖数: 299 | 41 Contrast limited adaptive histogram equalization有什么缺点吗？ 处理后的图像
局部都很清晰，听说CLANE也会有limitation和artifacts. 不知哪位高人知道CLAHE不
适用的例子？ |
|
k******a
发帖数: 2436 | 42 local contrast enhancement methods will cause "halo" artifacts at 明暗交界线
. The other common artifacts is the over-enhancement of noise. |
|
l*****0
发帖数: 299 | 43 Contrast limited adaptive histogram equalization有什么缺点吗？ 处理后的图像
局部都很清晰，不知哪位高人知道CLAHE不适用的例子？ |
|
b*********s
发帖数: 3863 | 44 id: betwfingers
Background : Ph.D. to be soon,
MRI enhanced by novel contrast agents for tumor grading and
evaluation of efficay of anti-cancer therapy
正在找pharma company imaging lab 的工作
初来乍到，请多关照 |
|
v*******g
发帖数: 334 | 45 proc GLM;
assuming A has 5 levels.
contrast 'A LINEAR & QUADRATIC'
a -2 -1 0 1 2------ I understand this is linear .
a 2 -1 -2 -1 2 ---------- Why this is QUADRATIC ? |
|
m**********6
发帖数: 34 | 46 I am very confused by how to set contrast in sas.
Please help. Thanks a lot!
Here is my dataset and hypothesis
data exp2X2;
input ID X1 X2 X1X2 Y1 Y2 MED1 MED2;
cards;
1 1 1 1 8 7 5 6
2 1 -1 -1 3 6 3 3
3 -1 1 -1 6 4 5 5
4 -1 -1 1 6 5 5 5
5 1 1 1 8 6 8 5
6 1 -1 -1 2 6 1 4
7 -1 1 -1 3 4 2 6
8 -1 -1 1 5 5 2 4
9 1 1 1 7 8 4 4
10 1 -1 -1 4 5 7 3
11 -1 1 -1 7 2 4 5
12 -1 -1 1 9 9 9 9
...
;
H=+1, L=-1
My hypothesis is 'HL
results, co |
|
s********9
发帖数: 74 | 47 If I wanted to check the effect of A*B in proc mixed;
A: 1 2 3
B: 1 2 3 4
What could I do to make the group A=3 and B=4 as reference?
When I used estimate, there are lots of lines of A*B showed up as 0......
I want to try contrast statement, but it looks very confusion!
Anyone has experience? |
|
l*****0
发帖数: 299 | 48 Contrast limited adaptive histogram equalization有什么缺点吗？ 处理后的图像
局部都很清晰，听说CLANE也会有limitation和artifacts. 不知哪位高人知道CLAHE不
适用的例子？ |
|
a***e
发帖数: 102 | 49 多谢多谢！！！
我也是感觉这两句不是很确定，实际上我觉得如果compare 所有trt的 avg to EE的话
，是不是需要把ee的coe 变成-4呢？ 但是logistic 好像不需要所有的coe sum as 0。
这点和anova又不同.有点糊涂了。。。
contrast 'ALLTRT vs EE' trtpn 1 1 1 1 -4 / estimate=exp; |
|
|
