p*****k
发帖数: 318 | 1 for the 1st question, seems it's easier to consider the opposite
question, i.e., the expected # of houses with same color as its
neighbor(s).
the idea is outlined by timesgone, or check a similar thread:
http://www.mitbbs.com/article_t/Quant/31237731.html
which results:
2*[(10/18)*(9/17)+(8/18)*(7/17)] +
16*[(10/18)*(9/17)*(8*/16)+(8/18)*(7/17)*(6/16)] = 674/153 ~ 4.4
1st term considers the houses on both ends.
so the answer is ~ 18-4.4 = 13.6
combinatorial approach seems very tedious, but doabl |
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y*****i
发帖数: 588 | 2 Also, I made the statement "good-looking ppl should not put their feet into
this middle class work force" with my own very biased and cynical view of
the world. God knows I believe any truly good-looking individual has the
ultimate right to waste their beauty on a tedious, boring and vulgar money-
generating lifestyle and assume he/she could achieve virtue through it.
as
intangible |
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w*****e
发帖数: 197 | 3 The first one is very simple because 10 T and 20 H
can't overlap. So essentially speaking, it is like
asking two events, one occurs with 1/2^10 and the other
with 1/2^20, what is the chance of one occurs before
the other.
The second one can be modeled as a markov process.
But it indeed seems to be a bit tedious by hand,
not so much on computer.
the
P |
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D********n
发帖数: 978 | 4 For someone who already has a tenure track job, the opportunity cost to
become a quant is much much higher than someone who has PhD but couldn't
land a post doc job.
My suggestion would be for you guys to make sure you do like being quants to
begin with. Quant nowadays are pretty much programmers with a lot of
annoying petty tedious things to care about. And for most people, quant work
has little, if any, to do with finance. For the mediocre salary quants
receive right now, it may not make much ... 阅读全帖 |
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l********e
发帖数: 220 | 5 agree, coding is tedious and quite time consuming, especially you want to
develop a robust program or system.
actually sometimes an idea is not the most important thing,you will get
quite different result with the same idea but different implementations...I
am sure 100 phds will have 100 implementations and presumably 100 different
trading performance numbers..Even you have the idea, you will have to spent significant effort to tune parameters, optimize performance.. that's also the key part of ... 阅读全帖 |
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l********e
发帖数: 220 | 6 agree, coding is tedious and quite time consuming, especially you want to
develop a robust program or system.
actually sometimes an idea is not the most important thing,you will get
quite different result with the same idea but different implementations...I
am sure 100 phds will have 100 implementations and presumably 100 different
trading performance numbers..Even you have the idea, you will have to spent significant effort to tune parameters, optimize performance.. that's also the key part of ... 阅读全帖 |
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f******y
发帖数: 2971 | 7 If you get a tenure tracked faculty position from a top 50 school, it is a
decent choice. The work you are doing is much more meaningful that being a
quant who is doing tedious stuff and supports other people everyday.
IPO |
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r****y
发帖数: 1437 | 8 It should be no problem for you to help your thesis advisor. You do not
need to do tedious work, you only need to guid his new student/postdoc.
If your current school allows postdoc to be a co-PI (a lot of schools
do not), this would be a big plus for your future job hunting. If not, at
least
being a co-I with no asking for money (or worst case, collaborator).
You can talk with your current boss with regard to this issue. If she/
he
is an open-minded person, this should no |
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a******o
发帖数: 1197 | 9 没有报道就没办法了，好在有一定规模的collective actions基本都有报道，当然小规
模的到法院门口聚集可能就没办法了。还可以根据大的运动进行分类，比如民族主义
数据来源有lexis-nexis，FBIS，港台中文媒体，基本上能把关于中国报道收全了
另外还可以做political opportunity structure的对应变化
总之是个tedious的事情，但应该有研究的意义，不论是定量还是历史的研究 |
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g**r
发帖数: 425 | 10 There are many ways to do this, but one way is simply reformat the disease;
the most straightforward way is operate in the first data:
if A=1 and sex='M' then DA=0.5;
if A=1 and sex='F' then DA=1;
etc.
Sounds very tedious, but you can use a simple data step on your second data
to do this; something like the following and then copy it from your log.
data tt;
set test;
array d(2) a b;
array cn(2) aa bb;
do i=1 to 2;
*put "if" vname(d(i)) "= 1 then " vname(n(i)) '=' d ;
c= |
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a*****8
发帖数: 110 | 11 Thanks aazj!
Here is what I want to do
Determine the number of days, according to R, between the following dates:
January 1 in the year 1700, and January 1 in the year 1800
January 1 in the year 1998, and January 1 in the year 2000
I just thought it was too tedious to type all 4 dates using as.Date. Any
better ways to do that? |
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c**********e
发帖数: 2007 | 12 There is one tedious solution, which is
C^10_1*(0.9)^20-C^10_2*(0.8)^20+.....+C^10_1*(0.1)^20.
A better solution can starts in the following way.
We have X_n as the number of colors we have got in n
steps. X_0=0. X_(n+1)=X_n with prob X_n/10, and
X_(n+1)=X_n + 1 with prob 1 - X_n/10. The problem
then becomes to find the probability of P(X_20=10). |
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x******e
发帖数: 42 | 13 現有500 excel files and these file names are stored in another file called
file.dat.
How to quickly import these files (500 excel files) and stored as SAS files
respectly after transposing them?
I wrote the code for a single file, but have to run the macro 500 times with
different numbers. It will be tedious.......... Any other convenient way
by taking advantage of the file.dat?
3xs!!!
%macro dataread(number);
PROC IMPORT OUT= file&number
DATAFILE= "C\chart_data\CR&number..xls"
DBMS |
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P****D
发帖数: 11146 | 14 Why do you want to do that?
I have done something similar before using macros. Don't know if my approach
is the easiest.
First use PROC CONTENTS to export all the variable names into a dataset, so
all these variable names are values of a string variable. Then add "_A" to
these values (Google if you don't know how to manipulate string variables).
Then use loop to generate a string macro variable whose CONTENT looks like
this "rename x = x_A; rename y=y_A;". Then you can execute that macro
variabl... 阅读全帖 |
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p***r
发帖数: 920 | 15 I wanna switch easily between two type of ods pdf/html, how can I code a
macro to control the on/off of ods, the manual structure is as following,
what I do so far is keeping quote and unquote which is somewhat tedious.
any suggestoin?
ods listing close;
/*ods html file="&add.\table.xls";*/
ods pdf file="&add.\table.pdf"; options orientation=landscape nodate
nonumber missing=" " papersize="letter";
ods pdf close;
/* ods html close;*/
ods listing; |
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l*********s
发帖数: 5409 | 16 tedious, but can be done |
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a***d
发帖数: 336 | 17 I am new to SAS too. If your data is not too big, here is a tedious way:
proc sql;
create table C as
select a.*, b.*
from A, B;
quit;
proc transpose data=C out=C1;
by id distance;
var nu;
run;
proc transpose data=C out=C2;
by id distance;
var ran;
run;
data D;
merge C1 C2;
by id distance;
drop _NAME_
run; |
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t********m
发帖数: 939 | 18 这个行，谢谢！
不过真实情况是，我的变量有差不多上千个，如果按照这个来写，将会非常的tedious
，不知道能不能有什么改进的办法。我觉得这个程序应该是最保险最不会出错的。多谢
了！ |
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k*******a
发帖数: 772 | 19 这个可以看作是个 LOCF的问题
可以用 array 来做，如果变量多的话
tedious |
|
o****o
发帖数: 8077 | 20 give some examples that SAS can't do in typical data analysis, so that I can
get prepared when I encounter them in the future. Due to limited experience
, SAS is sufficient for me so far, I think more diffcult will come from IT
related stuffs.
I know in many cases, it is tedious to write many lines of SAS code to just
finish one thing that is so simple to accomplish in a matrix based script
language, so I am looking for more and newer cases. |
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h******s
发帖数: 3420 | 21 说工资太高的报一下location.
东部的不能比。
我说的十几万是股票价值不是股数。second job 当然wfh 偷偷摸摸。合法不合法不知
道，principal / director level biostatistician 只有一个job 的没见过，公司都
是睁眼闭眼。programmer 比较难，主要job 太tedious.
: 不要误导人了。做到这个位置的可没有几个人会去搞second job, 一来太累不值
得，二
: 来被发现了可是有legal风险的。另外一般要到VP才能拿到10几20万的股票。一
般的
: director也就拿个几万股票就不错了。外包拿回扣是有人做，但是也是少数。
|
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h******s
发帖数: 3420 | 22 说工资太高的报一下location.
东部的不能比。
我说的十几万是股票价值不是股数。second job 当然wfh 偷偷摸摸。合法不合法不知
道，principal / director level biostatistician 只有一个job 的没见过，公司都
是睁眼闭眼。programmer 比较难，主要job 太tedious.
: 不要误导人了。做到这个位置的可没有几个人会去搞second job, 一来太累不值
得，二
: 来被发现了可是有legal风险的。另外一般要到VP才能拿到10几20万的股票。一
般的
: director也就拿个几万股票就不错了。外包拿回扣是有人做，但是也是少数。
|
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A*******s
发帖数: 9638 | 23 你这个高论把你的credit降到了最低。
数学都不能叫科学， 仅仅是科学的工具而已。 而统计更不是正宗的数学， 应用而已
。 你要说美国的surgeon搞不懂数学更是不知从和谈起。
听说过“只有教不会的老师， 没有教不会的学生”吗？ 如果一个统计学教授认为外科
医生不可教， 没有天才， 你不觉得这个统计学教授有问题吗？
统计没人学不是因为学不会， 而是因为没的学， boring， tedious，and hopeless.
lol
医学不需要有很高的数学能力，mcat甚至不需要考数学。医学主要还是需要记忆能力就
可以了。但是我们做数学题目，记忆能力没有什么用处的。
questions for you. You can try and see if you can solve some of the
problems by yourself. it's a open book test for you. If you can't solve
these questions, you can ask physicians and surgeons around you to help y... 阅读全帖 |
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h*******l
发帖数: 1542 | 24 The word "mathematics" comes from the Greek μάθημα (máthēma),
which means in ancient Greek what one learns, what one gets to know, hence
also study and science.
Carl Friedrich Gauss (1777–1855) referred to mathematics as "the Queen of
the Sciences". Benjamin Peirce (1809-1880) called mathematics "the science
that draws necessary conclusions".
Statistics is called Applied Mathematics. It's a a branch of mathematics
dealing with the collection, analysis, interpretation, and presentation of
ma... 阅读全帖 |
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w*******y
发帖数: 60932 | 25 Moon DVD now $4.99 on Amazon:
http://www.amazon.com/Moon-Sam-Rockwell/dp/B002T9H2MO?Subscript
Science fiction can encompass many genres--suspense, horror, action-
adventure, romance, even comedy--but director Duncan Jones's Moon doesn't
fit neatly into any of them. This smart, provocative film has no aliens or
cool spaceships, and the effects (mostly consisting of model vehicles
lumbering across the lunar surface) aren't all that special; instead, the
material is character- and story-driven, cen... 阅读全帖 |
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w*******y
发帖数: 60932 | 26 $9.25 - AMAZON - Micro Vacuum Attachment Kit
Nice kit which I own which fits your standard vacuum. It's inexpensive, has
lots of attachments and is great for PC enthusiasts that want to detail
their keyboards and other electronics. Handy tool to have for odd cleaning
jobs. You will want to put all the parts in a small canvas bag or clear
storage container as putting them back in and out of the shipping cartoon
will become tedious.
Figured I would share this as one of those things everyone sho... 阅读全帖 |
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w*******y
发帖数: 60932 | 27 These guys are incomprehensibly smart...
Edit: The greenpois0n site is getting hammered...just give it some time if
you can't get through.
quote
Your Wait is (Finally) Over
gpadmin | January 20, 2012 | Comments (0)
Greetings, friends & jailbreakers!
We are well-aware of how very many of you, our faithful fans, have been
waiting for months for this announcement, so - with no further ado, we are
excited to unveil the newest addition to our GreenPois0n toolki... 阅读全帖 |
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P*********y
发帖数: 310 | 28 SBML is not a proprietary code format owned by anyone. It is a biological
modeling standard developed by a consortium.
I don't think anyone actually writes the sbml code by himself - it will be
extremely tedious and error-prone. These days people usually build their
models using a particular simulation platform,and if the platform supports
sbml, it will generate the sbml code automatically for you. Simulation
platforms that support sbml - either importing or exporting sbml or both -
can be found |
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D********r
发帖数: 343 | 29 That sometimes happens. It is very tedious to do a CLA. |
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r******2
发帖数: 67 | 30 Anyone interested in going hiking on Sunday? I am thinking Sugarloaf
Mountain in Maryland
Since it's pretty nearby and the trail is not that long, I was thinking of
meeting around 1 pm by the Orange Trail parking lot
Just a warning, the trail is a little tedious, not steep but lots of ups and
downs, so bring lots of water.
Let me know if you are interested
Ruirui
Trail Map
http://www.sugarloafmd.com/images/maps/102709_trailmap.pdf
From Frederick Follow Route I-270 South to the Hyattstown exit, f... 阅读全帖 |
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S*********e
发帖数: 67 | 31 又是一个妹妹，看来还是女的容易抑郁些
根据你的描述觉得你现在病情的发展经历是这样的：
（内因）性格中过于追求完美，很在乎别人眼中对自己的看法
（外因）学习和找工作的压力
（造成）延迁（procrascination) ——》逃避压力
回避人群－》逃避潜在的别人对自己negative的评价
（逃避的后果）内因外因无任何改善，而且恶化，造成心情进一步恶化
（可以采取的措置）找朋友聊天，找医生聊，这些你都作的很好了
休学的建议也很好，如果一再不正视现实（今年你几门课的成绩会很糟糕
），那么等你拿到那几个烂分数的时候只会进一步痛恨和看低自己，对自己百害无一利
，现休息好把身体养过来，下学期再上课
（一些小提醒）觉得一直到现在你对自己都还是自视甚高，这个从你的描述中显示的出
来，一般越是心里没底没有自信的状况下人越是喜欢说其实我有能力作blahblahblah。
建议你还是现实一点好，学习找工作都很多时候都是很tedious的过程，每件小事情不
一样一样一步一步的作，光是好学校也不能避免在这些事上会受到的挫折。
还有感觉你的人生的支点太少，感觉你心 |
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l****g
发帖数: 249 | 32 manually doing it would be too tedious. I use perl and php to get the list
automatically. Without too much perl, php, or mySQL background, I found coding
is tough. But now, it is done, and minimal attention is needed for updating
the list every week. |
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G**B
发帖数: 371 | 33 〔每日靈修〕
【全年讀經進度】民數記 Numbers 15
（用左鍵按下藍色的經文，該段聖經就會自動出現）
【今日默想禱讀經文】民 15:37-41
耶和華曉諭摩西說：你吩咐以色列人，叫他們世世代代在衣服邊上做繸子，又在
底邊的繸子上釘一根藍細帶子。 你們佩帶這繸子，好叫你們看見就記念遵行耶和華一
切的命令，不隨從自己的心意、眼目行邪淫，像你們素常一樣；使你們記念遵行我一切
的命令，成為聖潔，歸與你們的 神。我是耶和華─你們的 神，曾把你們從埃及地領
出來，要作你們的 神。我是耶和華─你們的 神。
【今日信息】 一根藍細帶子 By Rev. Andrew Tsai
當我們去到以色列時，看到正統的猶太人，身穿黑衣，頭戴黑帽，衣服的下襬有
一條藍細帶子。我們很好奇，前往問其中一人，有關這條帶子的意義，這猶太人很驚奇
的看著我們，不明白為何我們要問？我也很懷疑，他是否知道這條帶子的意義？
就好像我們看到纺間所賣的金燈台，有七根的，也有九根的，但是你問店家，聖經
裡不是只有七根嗎？為何你們會賣九根的呢？很多人都說不出個所以然來。
許多傳統的遺傳，人們至今還守著，但... 阅读全帖 |
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e****r
发帖数: 166 | 34 thanks again, i also found some sample code from google,
i didn't use windows api to program, pure opengl/glut,
so i have to figure out how to adapt it to fit my program,
the frame work is there already, shouldn't be too tedious i guess. |
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i*********d
发帖数: 251 | 35 faint, you still did not get the point,
it was not about how you run the board,
it was about the over-statement on your
self-retrospection on how you run the board.
Nobody cares your style of management,
but if you explain your motive of
doing such or not doing such every time,
it can sound tediously boring.You don't have
to evaluate yourself, you don't have to give out
appology, you are an administrator, not
an intern student to work out a project
under supervision.
No more explanation please, |
|
e***e
发帖数: 3872 | 36 [cont.]
Joseph: This theory you present is not at all insignificant, Master,
prohibiting tedious commonplaces and demanding sublime and unusual ideas
within the natural order.
Aloys: Very true. For it is not eaasy to present to hearers a piece that
is easy[7] and natural yet not commonplace; there is a proverb 'To be
simple is difficult' [Facile difficile est]. But yet the excellence and
'spice' of good taste will depend on this 'difficult ease'. He in whom the
concern for novelty inverts th |
|
e***e
发帖数: 3872 | 37 Neutral Tones
WE stood by a pond that winter day,
And the sun was white, as though chidden of God,
And a few leaves lay on the starving sod,
—They had fallen from an ash, and were gray.
Your eyes on me were as eyes that rove 5
Over tedious riddles solved years ago;
And some words played between us to and fro—
On which lost the more by our love.
The smile on your mouth was the deadest thing
Alive enough to have strength to die; 10
And a grin of bitterne |
|
e***e
发帖数: 3872 | 38 【 以下文字转载自 Translation 讨论区 】
发信人: etude (胭脂醉), 信区: Translation
标 题: Neutral Tones [Thomas Hardy, 1867]
发信站: BBS 未名空间站 (Fri Feb 9 12:58:57 2007), 转信
Neutral Tones
[Thomas Hardy, 1867]
WE stood by a pond that winter day,
And the sun was white, as though chidden of God,
And a few leaves lay on the starving sod,
—They had fallen from an ash, and were gray.
Your eyes on me were as eyes that rove 5
Over tedious riddles solved years ago;
And some words played between us to and fro—
On which lost the m |
|
p*******r
发帖数: 4048 | 39 Neutral Tones
by
Thomas Hardy
We stood by a pond that winter day,
And the sun was white, as though chidden of God,
And a few leaves lay on the starving sod;
---- They had fallen from an ash, and were gray.
Your eyes on me were as eyes that rove
Over tedious riddles of years ago;
And some words played between us to and fro
On which lost the more by our love.
The smile on your mouth was the deadest thing
Alive enough to have strength to die;
And a grin of bitterness swept thereby
Like an om |
|
