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全部话题 - 话题: proprotion
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B*****e
发帖数: 9375
1
来自主题: Football版 - NFL Considering 8-game season?
You guys don't need to worry about revenues,
which are proprotional to games played ...
r****y
发帖数: 1437
2
来自主题: GeoSpace版 - 想自己写个model
Having a toy model is very useful, e.g. it can quickly help you
verifying some ideas. Details then can be done with more sophisticated model.
A microwave model is easy, it's linearly proprotional to temperature
,
hoho, just kidding.

,TMI, VIRS, AMSR-E, CERES, 发现拿来做用户名挺好的,大多时候没被人用过,呵呵
,学大气的还是比较少啊。
r****y
发帖数: 1437
3
来自主题: GeoSpace版 - 一个愚蠢的问题
projection illusion.
remember the area is proprotional to cos(lat)
This is why from 30S to 30N, the area is half of the total spherical
area.
Afica has a big chunk in tropics, while North American is really
further polarward a lot.
W**********E
发帖数: 242
4
来自主题: Statistics版 - 如何SIMULATE CENSORING PROPROTION?
如何SIMULATE SURVIVAL TIME 并能按预定比例CENSOR(25%,50%,75%)?
比方说TIME TO DEATH ~EXPONENTIAL DIST(RATE=XXX),然后CENSORING TIME~
UNIFORM(0,C)。如何确定这个C最后的数据有预定的CENSORING PROPORTION(25
%,50%,75%)?
谁有这方面的经验
THANKS,
c****u
发帖数: 243
5
来自主题: Statistics版 - 如何SIMULATE CENSORING PROPROTION?
Suppose T is the survival time and C is the censoring time
then censoring rate is Pr(C
e****t
发帖数: 766
6
SAS 9.2 gives a way for noninferioriy test for the difference of two
proprotions.
I try to use that, but confused where to specify the command.
Does anyone use it before ?
here is the link for introduction
http://support.sas.com/documentation/cdl/en/procstat/63104/HTML/default/viewer.htm#procstat_freq_sect010.htm#procstat.freq.binopts
i tried specify in "proc freq" "tables" "test" comond, none of them work.
can anybody like to share the code ?
Thanks in advance!
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