d***x
发帖数: 6 | 1 用R 的LME model fit出来的slope不是想要的(eg. fit 出来的slope>0)。我想要put
restriction on slope. (eg. slope<0 )
怎么才能把slope改成<0呢？
实际上my restriction to the slope would be
slope b1 <0, b2>0 and b1+b2 <0 (which means 0< b2<-b1)
找到lmeControl, optim, optimx （后面两个function 里面可以设lower, upper
boundary） 但是不会用，求高人指点 |
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g********d
发帖数: 4174 | 2 Posted on Advocate.com September 23, 2011 02:17:55 PM ET
Which Slippery Slope Argument Wins in North Carolina?
By Lucas Grindley
PAUL STAM X390 (GRAB) | ADVOCATE.COM
Paul Stam
Dueling slippery slope arguments vied for the attention of North Carolina
voters during a recent debate about the state's proposed constitutional ban
on same-sex marriage.
"All persons are created equal but that doesn't imply, for example, that
three people can claim to be married," said Republican House Majority Leader
Pa... 阅读全帖 |
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a**u
发帖数: 17 | 3 有100个被试,每个人都有6个VARIABLES: A1, A2, A3, B1, B2, B3
我想要做的是,给每个人计算两个SLOPE, 其实就是根据三个点来一个LINEAR
REGRESSION,根据A1,A2,A3计算一个SLOPE,再根据B1,B2,B3计算一个SLOPE.
请问是不是需要TRANSPOSE或者RESTRUCTURE将数据变形,然后再用REGRESSION 后者CURVE
ESTEMATED得到SLOPE,也就是BETA, 然后再怎么保存成一列变量哪?
怎么都想不出来怎么办,好急啊,老板又着急要结果.请帮忙!!! |
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b******s
发帖数: 325 | 4 A very lovely home, but sitting on a deep sloped land about 45+ degree. The
front yard used some retaining wall to support the house. The backyard only
has grass ground, and the line of slope cuts through the whole backyard (
about .5 acre) in the middle. This is because this land belongs to another
home owner up on the hill. He had financial probelm so sliced out a part of
his backyard to build this new home. his and this home's yard is overall a
downward slope.
How bad is this problem? is this... 阅读全帖 |
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发帖数: 1 | 5 借朋友的账号发个帖子
中国人房东租期至17年八月三十一日 1月底即可入住，适合在NYU，巴鲁克读书的学生
，在布鲁克林，曼哈顿downtown（华尔街）上班人士 。室友是在纽约读书的男生。 租
金一个月990，价格可议，另外只需和室友分摊网络，燃气，电的费用
地理位置: 203 17th St Brooklyn Apt16
去各个地方都非常方便，出门步行30米即可到达Prospect ave地铁站（R train），步
行10分钟到4 Av - 9 St 地铁站可坐F,G train。坐地铁到NYU TANDON 10分钟， 到
NYU main campus 30分钟。 北上乘地铁25分钟可到达曼哈顿的Wall Street， 25分钟
可到达位于manhattan downtown的金融中心world trade center等站， 23分钟可到达
曼哈顿唐人街，南下15分钟可到达纽约物价最最最最低的八大道唐人街，交通方便。
Park slope治安非常好，非常清净，是一个白人为主的社区。Wikipedia在介绍park
slope的时候说到Park Slope is consid... 阅读全帖 |
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z**********i
发帖数: 12276 | 6 数据是health care data.
一个measure(比如说检测血压）,从2004 quarter 1 到2011 quarter 4.
另一个measure（比如说给了Aspirin), 是从2009 quarter 1到2011 quarter 4.
outcome是rate,每个quarter，有多少病人入院，有多少接受了measure（治疗）。
slope是rate随时间的变化。还有一些其他的covarience，建了个model,然后得到slope.
这2个measure都是检测同一个病人的群体，比如说是心脏病的病人，到医院是否接受了
这个meaure.
因为，这2个measure，开始的时间不同，想比较，是否在前3年，2个slope有差异？
比方说，measure1, 用model，得到slope1. measure2, 用model，得到slope2.
2个model，用共同的candidate variables.
问题，想比较不同的measure，在不同的时间。2组数据算是独立的吗？
是否可以用一个model来比较它们的rate变化？
如果，不行，应该如何比较... 阅读全帖 |
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发帖数: 1 | 7 大家好,
布鲁克林Park Slope靠近R线和F线两室一厅标准房卧室出租
如果你想来到生活气息浓，交通购物都超方便的Park Slope，这是一个绝好的地
段，每天早上步行去Prospect Park，5大道和7大道的各种餐厅，酒吧，有24小时的便
利店，比萨店，还有各种Local的Grocery Stores，在家做饭出去吃饭都方便。离八大
道唐人街也非常近，地铁十几分钟就到。
交通：20分钟车程直接到布鲁克林Chinatown，20分钟地铁到曼哈顿，慢线快线均可达
，R线F线多种选择，我经常都是三个站选着.
宜家：附近有直达宜家的交通车B61路，十分钟就到，还有宜家专车shuttle.
房子：标准的两室一厅，在三楼顶楼，大客厅沙发,32寸东芝电视机，三星蓝光家庭影
院，还有以前室友留下的Keywood 磁带CD两用音响；一个小饭；厨房小巧但高效，有烤
箱；标准卫生间；稍微大一点的卧室本人住，待出租的卧室大概2mx5m, 可以放下单人
床；房间风格，简约整洁.
配套: 宽带Time Warner，电视天线可以收到50多个台
关于我：地产金融投资行业，曾经设计师.正常作息时间，朝九晚... 阅读全帖 |
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发帖数: 1 | 8 大家好,
布鲁克林Park Slope靠近R线和F线两室一厅标准房卧室出租
如果你想来到生活气息浓，交通购物都超方便的Park Slope，这是一个绝好的地
段，每天早上步行去Prospect Park，5大道和7大道的各种餐厅，酒吧，有24小时的便
利店，比萨店，还有各种Local的Grocery Stores，在家做饭出去吃饭都方便。离八大
道唐人街也非常近，地铁十几分钟就到。
交通：20分钟车程直接到布鲁克林Chinatown，20分钟地铁到曼哈顿，慢线快线均可达
，R线F线多种选择，我经常都是三个站选着.
宜家：附近有直达宜家的交通车B61路，十分钟就到，还有宜家专车shuttle.
房子：标准的两室一厅，在三楼顶楼，大客厅沙发,32寸东芝电视机，三星蓝光家庭影
院，还有以前室友留下的Keywood 磁带CD两用音响；一个小饭；厨房小巧但高效，有烤
箱；标准卫生间；稍微大一点的卧室本人住，待出租的卧室大概2mx5m, 可以放下单人
床；房间风格，简约整洁.
配套: 宽带Time Warner，电视天线可以收到50多个台
关于我：地产金融投资行业，曾经设计师.正常作息时间，朝九晚... 阅读全帖 |
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a******t
发帖数: 2944 | 9 down slope: your property goes down from the street. (bad fengshui)
up slope: your property goes up from the street. (good fengshui) |
|
f*****f
发帖数: 371 | 10 正在看的房子（34年，townhouse, two story），Property Inspector 说房子garage
上方second floor slope, 厨房上方的second floor master bedroom 也有slope.
这房子能要吗？有经验的说说看！ |
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s*****n
发帖数: 617 | 11 既然Maywhite大佬发了话，这份作业不交是混不过去了。那天登Massive的确比较平淡
，只好记流水帐了。
登Mt. Massive有两条道，Standard Route和Southwest Slopes。Standard Route比较
长，来回将近14 miles，elevation gain也多些。Southwest Slopes从 N. Halfmoon
Creek trailhead出发，来回8 miles 。我属于喜欢偷懒抄近道的，自然就选了后者。
前一天仔细读了14ers.com上最近关于N. Halfmoon Creek TH的报告，大家都说从Mt.
Massive TH往西的土路不好走，最后半哩需要4WD和高底盘。我也做好了再加一哩路的
思想准备，不管怎样还是比Standard Route短很多。
早上三点半起床，四点出门，六点左右经过Leadville。过了Mt. Massive TH之后路开
始变得难开，幸好后面没人跟着，可以不慌不忙地慢慢蹭，感觉还是要比Grays and
Torreys那条好走，大石头没那么多。沿着Halfmoon Creek有不少cam |
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j****e
发帖数: 140 | 12 【 以下文字转载自 Quant 讨论区 】
发信人: jejune (孑孓), 信区: Quant
标 题: given level, slope and curvature, what will be the curve?
发信站: BBS 未名空间站 (Fri Oct 26 15:59:40 2007)
i need a curve that has given level, slope and curvature at a given point and pass anthoer pont.
what would be the simplest way to construct such a curve? |
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z**********i
发帖数: 12276 | 13 有2组数据，我想比较这2组数据的slope。
因为，这2组数据不是independent。打算，分别build model，计算它们的slope。
然后，再比较。应该用什么办法比较呢？
或者有其他的解决办法呢？
多谢！ |
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d******3
发帖数: 209 | 14 Baldwin Street, in a suburban part of New Zealand's southern city of Dunedin
, is considered the world's steepest street.
The Guinness Book officially recognizes Baldwin Street as the world's
steepest, at its maximum, the slope of Baldwin Street is approximately 1:2.
86 (19°). This is a paved public road but it is open only to 4 wheel drive
vehicles.
http://en.wikipedia.org/wiki/Baldwin_Street,_Dunedin |
|
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M*******n
发帖数: 629 | 16 有的房子注明了down/up slope，区别点解？
谢谢 |
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w**********a
发帖数: 385 | 17 Inspection report上说有minor slope，会allow water to pond against wall。然后
notes里说monometer floor survey came out at appox 3/4", this is normal H.U.D
standard。
不懂这个指的是什么。
说foundation没有什么大问题，有些common cracks和moisture/stains。
lot是一个小窄条，基本上都是concrete的，这个问题很严重么？重新做grading大概
需要多少钱？
多谢各位！ |
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H******7
发帖数: 34403 | 18 retaining wall is not so expensive. Lower than 7 ft retaining wall requires
no permit HERE. However, check with your city code. The retaining wall has
drainage pipes under it to collect any drainage from the slope. |
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c******k
发帖数: 300 | 19 偶们看上的一个房子
floor有slope但仍在规定范围内。
这样问题大吗？？ |
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s********a
发帖数: 2796 | 20 看到个房子是flat roof不敢下手，不知道会不会雪大压坏或者漏水。又或者改造一番
，加高pitch成low sloped roof或者pitch roof，花费会很高么？ |
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m********n
发帖数: 1602 | 21 A couple had a particularly moving experience when they got married at Big
Sky Resort in Montana _ they exchanged vows while he skied and she
snowboarded with a clergyman officiating and about 30 guests on the slope to
watch.
http://www.msnbc.msn.com/id/17817285/from/ET/ |
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d*******a
发帖数: 25 | 22 现在在找房，人在国内，漫无目的，感觉大海捞针似的，还要防骗子。打算找brooklyn
特别是park slope地区，或者是NJ的newport地区的apt。看各位都在纽约混了多年了，能否推荐几
个这俩地区比较靠谱的房产公司（或网站），我到了就直接杀过去了 |
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c******j
发帖数: 405 | 23 park slope 7th ave上有n多房产公司，来了去看广告好了，租房也没有什么太大问题
，都差不多的
你什么时候来啊？提前太早在网上看也没用的，留不了那么久 |
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c*****l
发帖数: 5203 | 24 看你们是那种LIFE STYLE了 PARK SLOPE适合西化的年轻人 FORREST HILL比较保守 |
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W*****r
发帖数: 5681 | 25 我记得以前的 Bunny Slope 小学学区也只有八九分。 会一直变化的。 You never
know. 看城里给的经费和家长的捐献了。 :) |
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W*****r
发帖数: 5681 | 26 我记得以前的 Bunny Slope 小学学区也只有八九分。 会一直变化的。 You never
know. 看城里给的经费和家长的捐献了。 :) |
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c*******l
发帖数: 34 | 27 Bonny SLope的小学是10分的，初中cedar park会有快班的样子。
如果想要租这个学区的房子，可以跟我联系。 |
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s*******w
发帖数: 210 | 28 the way i understood it about golf course slope ratings (68.2/125) is the
following: the first number 68.2 tells you how hard the course is in relation
to par, i.e., if you are scratch golfer(0 handicapper), you should be shooting
about 68.2 on this course. so on your score card, it may say it's a par 71 or
par 72 course, 68.2 basically tells you it's a very easy course, because it's
equivalent to a par 68.2 course. the second number is a multiplier for your
handicap. let's say you have a handic |
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A*f
发帖数: 3067 | 29 ☆─────────────────────────────────────☆
soundview (老夫子) 于 (Sat Apr 9 09:30:21 2005) 提到:
the way i understood it about golf course slope ratings (68.2/125) is the
following: the first number 68.2 tells you how hard the course is in relation
to par, i.e., if you are scratch golfer(0 handicapper), you should be shooting
about 68.2 on this course. so on your score card, it may say it's a par 71 or
par 72 course, 68.2 basically tells you it's a very easy course, because it's
equivalent to a par |
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w*****r
发帖数: 385 | 30 just a friendly reminder about using snowshoes on icy or hard-pack snow
slopes. I think it is important to remember that the snowshoes can react
similar to crampons if you lose control and start sliding a long distance.
Also, snowshoes are too big, less flexible, and reduce the balance and
control on harder snow and ice surfaces. The crampon under the snowshoe
binding and or the snowshoe itself may suddenly catch on an obstacle.
This could cause you to lose more control and even cause an injury |
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l********9
发帖数: 427 | 31 周六去了IN的north perfect slope。开车2个多小时，路上很好走，车不多。
因为前几天下了雪，雪场上的感觉不错，很多高的地方，没有被太阳晒到的地方雪太爽
了，浆状，一停就可以撮起来一片。
不过冰的地方还是不少，尤其是人多的地方。
山顶去了好几遍，蓝道都滑过了，感觉稍微偏简单，也短了点，不过感觉很好，尤其是
最后一次和我朋友滑最长的那条蓝道，就我们两个人，爽死了！
黑道玩了一下，太短，坡度太大，降低速度也下来的很快，反而没有蓝的滑的爽。两个
双钻的都在树林里面走，都是雪堡，朋友不敢去（他是单板），就没有尝试。
总体来说太爽了，滑了8个小时。就是被困在缆车上面20多分钟不爽，但是上去以后给
了我们每人一杯热coco，不错不错~ |
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c*******r
发帖数: 13580 | 32 people over estimate slopes all the time. People just can't believe that
those hilly roads in San Francisco and Seattle are actually well under 15
degrees, hehe |
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Y**s
发帖数: 1632 | 33 wish there's a chart for "speed" as well.
Cuz most people probably overestimate that even more than steepness.
But I once went down a slope that's 180 degrees. True story.
-yoss |
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Y**s
发帖数: 1632 | 34 Yea I was going at least 89mph too, then I hit that 180 degree slope and I
thought I'd be dead for sure. Luckily my awesome pole planting skill saved
me!
-yoss |
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y*******o
发帖数: 6632 | 35 羡慕东部的大雪场，不过俺们摸有条件也要上呀，
Jan 9号，有没有人去perfect north slope的，一起group 便宜点前呀，俺准备9：30
开门杀到。站内联系 |
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c******r
发帖数: 3778 | 36 院子边上是slope，比较陡，长满杂草。想弄一下。大家都是怎么处理的？怎么能够维
护比较简单？ |
|
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r*********e
发帖数: 281 | 38 最新的Transaction on E. D. paper
有人claim 35mV/decade的slope，还不象是typo的样子
这都什么世道啊。。。莫非我白痴了？。。。 |
|
a**u
发帖数: 17 | 39 好吧,其实是一个简单的问题,
做LINEAR REGRESSION的时候,怎么在DATA EDITOR中保存BETA?
一般来说,我们都是针对一个变量,也就是一个COLUMN来做REGRESSION(这里的自变量我用
时间),但是现在我要对横着的三个变量做REGRESSION. 也就是说,这三个变量是在三个时
间点测量的SCORE, 我希望能找到他们变化的斜率.
当然,首先我想到的就是将数据TRANSPOSE,这样使这三个变量成纵向排列,仿佛是一个VARI
ABLE,这样我可以得到SLOPE,但是问题是如何将这些BETA保存在DATA EDITOR里面,因为里
面的被试数太多,我不可能一个一个从OUTPUT里面COPY到DATA窗口中.
另外,这纯粹是一个SPSS的使用技术问题,我猜想叙说变量名什么的没有必要,所以采用A,B
代替.这样叙述的清楚吗? |
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a**u
发帖数: 17 | 40 I just want to make it simple. Actually there are about 30 variables. Most
important thing is that there are about 100 subjects. I need to get slope for
EACH subject, I can't write them one by one.
我
个
当然,首先我想到的就是将数据TRANSPOSE,这样使这三个变量成纵向排列,仿佛是一个VARI
为
另外,这纯粹是一个SPSS的使用技术问题,我猜想叙说变量名什么的没有必要,所以采用A,B |
|
s*****a
发帖数: 56 | 41 I would agree to create two stacked variables for both A and B, and get the
change trajectories for A and B. However, you can just obtain two beta values
(slopes for A and B). As you set them as new variables, they would be
constants and are not really variables. Maybe I misunderstand your
question...
用
时
当然,首先我想到的就是将数据TRANSPOSE,这样使这三个变量成纵向排列,仿佛是一个VARI
里
另外,这纯粹是一个SPSS的使用技术问题,我猜想叙说变量名什么的没有必要,所以采用A,B |
|
j****e
发帖数: 140 | 42 i need a curve that has given level, slope and curvature at a given point and pass anthoer pont.
what would be the simplest way to construct such a curve? |
|
j****e
发帖数: 140 | 43 sorry, I just modified the orginal question.
a need something similar to y=f(x), while the curver have some slope, aka,
it's symetric axis will no long be x=c. |
|
h******3
发帖数: 190 | 44 Help... Somehow I am stuck and cannot get the expected answer which is -xbar
*var(slope estimate) |
|
z**********i
发帖数: 12276 | 45 换个说法，如果，2组数据是dependent,如何比较他们的slope?
谢谢！ |
|
d**s
发帖数: 1255 | 46 dude, you need to clarify your question
what's the data structure, and what's kind of outcome
slope of what, where is coming from, etc |
|
|
z*****w
发帖数: 118 | 48 我的model:
proc glm data=f;
class n year;
model tc=year n n*year/solution;
lsmeans n n*year/pdiff;
estimate "compare m1-m2" n 1 -1 0;
estimate "compare m1-m3" n 1 0 -1;
estimate "compare m2-m3" n 0 1 -1;
run;
quit;
n有３组，year有6年，想test每２组之间slope的差异，不知道这样的sas code对不对？
还有estimate statement这样写，好象没有考虑interaction n*year,对吗？ |
|
w*******y
发帖数: 60932 | 49 I bought these in Dec 2010 during a big Amazon sale for my food storage.
Delicious!
Ambrosia Pure Honey From Colorado's Western Slope, 23-Ounce Bottles (Pack of
4):
http://www.amazon.com/gp/product/B001EO617M/ref=ox_ya_os_produc
List Price: $28.50
Price: $22.29 ($0.24 / oz)
You Save: $6.21 (22%)
o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o
o o o o o o o o o o o o o o o o o o o o o o o o o o
Save an extra 15% with Subscribe & Save: Sign up to have this item deliv... 阅读全帖 |
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s********u
发帖数: 1109 | 50 struct Line{
double slope;
double intercept;
Line(Point p, Point q){
if(p.x == q.x){
slope = numeric_limits::max();
intercept = p.x;
}else{
slope = (double)(p.y - q.y)/(double)(p.x - q.x);
intercept = p.y - slope * p.x;
}
}
};
struct Comp{
static double eps;
bool operator()( const Line &l1, const Line &l2){
if( l1.slope - l2.slope < -eps )
... 阅读全帖 |
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