x****c
发帖数: 25662 | 1 没法详细说，呵呵，没用过17-55。
等版上N+用户跟你说了。
简单点的选择肯定从光圈够不够用入手，够用，不买，不够用，那结论也很明显了。
你要是想比较f2.8下那个锐？当然35 1.8锐，你要是比较那个焦外好看，这个比较subj
ective，得找评测看图。边角哪个好也得找评测了。
但锐度，焦外，变焦这些不同人要求不同，我觉得够锐，你不一定这样想。所以都说不
准。 |
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v****e
发帖数: 276 | 3 A deep and detailed survey by Focus.com concludes that the best job in the U
nited States is a tech job: systems engineer. No. 2: physician assistant. No
. 3: college professor.
http://news.cnet.com/8301-17852_3-10468165-71.html?part=rss&subj=news&tag=25
47-1_3-0-20
If you're a systems engineer who wonders whether you've chosen the right pro
fession, I bring you good news.
Please take a deep breath, stand up, and be prepared to leap so high, you wi
ll touch the sky. Then you will, perhaps, want |
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S*********g
发帖数: 24893 | 4 【 以下文字转载自 USANews 讨论区 】
发信人: StephenKing (金博士), 信区: USANews
标 题: 真正的美国新闻：让美国蒙羞的新闻
发信站: BBS 未名空间站 (Thu Feb 7 23:51:09 2013, 美东)
From: Christopher Jordan Dorner /7648
To: America
Subj: Last resort
Regarding CF# 07-004281
I know most of you who personally know me are in disbelief to hear from
media reports that I am suspected of committing such horrendous murders and
have taken drastic and shocking actions in the last couple of days. You are
saying to yourself that this is completely out of chara... 阅读全帖 |
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R*o
发帖数: 3781 | 5 by Dave Hunt
For God to act as Calvinism teaches would be inconsistent with the repeated
assurance in His Word that He is merciful and loving toward all. The committ
ed Calvinist W.G.T. Shedd wrote, "The charges that have been made ... from t
ime immemorial are, that Calvinism represents God as a tyrannical sovereign
who is destitute of love and mercy for any but an elect few, that it attribu
tes to man the depravity of devils, deprives him of moral freedom, and subje
cts him to the arbitrary cr... 阅读全帖 |
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R*o
发帖数: 3781 | 6 re
repeated
committ
t
sovereign
attribu
subje
to
even |
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R*o
发帖数: 3781 | 7 Study By: Greg Herrick
A. Introduction
Many years ago there was a famous correspondence in The Times under the subj
ect “What is wrong with the world today?” The best letter of all was also
the shortest, and read—“Dear Sir, I am. Yours faithfully, G. K. Chesterton
.” That devastating declaration showed a profound insight into man’s unive
rsal malaise, and I believe that it can teach us a deeply challenging lesson
. I am convinced that throughout the Christian church there are problems, di
fficul... 阅读全帖 |
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C**********y
发帖数: 416 | 8 你貼了也白貼，自己根本不信，正在走向自我滅亡並且拉著別人一起滅亡之路
趕緊悔改吧
subj
also
Chesterton
unive
lesson
di
only
wr |
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R*o
发帖数: 3781 | 9 Study By: Greg Herrick
A. Introduction
Many years ago there was a famous correspondence in The Times under the subj
ect “What is wrong with the world today?” The best letter of all was also
the shortest, and read—“Dear Sir, I am. Yours faithfully, G. K. Chesterton
.” That devastating declaration showed a profound insight into man’s unive
rsal malaise, and I believe that it can teach us a deeply challenging lesson
. I am convinced that throughout the Christian church there are problems, di
fficul... 阅读全帖 |
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C**********y
发帖数: 416 | 10 你貼了也白貼，自己根本不信，正在走向自我滅亡並且拉著別人一起滅亡之路
趕緊悔改吧
subj
also
Chesterton
unive
lesson
di
only
wr |
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R*o
发帖数: 3781 | 11 up
subj
also
Chesterton
unive
lesson
di
only
wr |
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s*********a
发帖数: 801 | 12 记得很多年前，有 email 传播这个：
Subj: God -vs- science
Be sure to read it all the way to the end.
"Let me explain the problem science has with Jesus Christ." The atheist
professor of philosophy pauses before his class and then asks one of his new
students to stand.
Why is a philosophy teacher, woops, professor (that word sets up our
instructor as the bad guy, as if atheist wasn't enough) talking about
science and not philosophy? And when was the last time a college professor
asked one of his students to st... 阅读全帖 |
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f*******5
发帖数: 10321 | 15 http://news.cnet.com/8301-1035_3-20021763-94.html?part=rss&subj=news&tag=2547-1_3-0-20
.The numbers are NOT mutually exclusive
.The group surveyed more than 500 app developers, publishers, and
advertisers about their mobile platform plans.
30 percent said they're currently creating apps for the iPhone, ...down a
bit from last December, when 48 percent of those polled were eyeing the
iPhone as their platform of choice.
Android took second place with 23 percent... barely beat Apple's iPad, which
i... 阅读全帖 |
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w**d
发帖数: 1476 | 19 一直在用Eudora 1.5 (不好意思，版本低了点)，设置成每几分钟
自动check email. 刚才忽然防毒软件Vshield报告下载的email
中有病毒，提示“是否删除”。我也没在意，前一阵类似的东西
多了，反正咱不打开就没事，於是“删除”。可是马上就发现
病毒大概是删掉了，可是我的Inbox里的邮件内容全都不见了，
只剩邮件列表(email list)还在。但其他folder(如Outbox, Trash,
以及自己建立的mailbox等等)里的邮件及列表都未受影响。
Eudora好像每个folder都是个文件，叫xxx.mbx的，另外每个
folder里的email list则保存在另一个叫xxx.toc的文件里，
刚才看了一下，发现我的Eudora下Inbox.mbx现在已经变成0字节，
Inbox.toc还没受影响(所以我还能继续看见email list),
其他文件好像也未受影响。
是什么病毒刚才没注意，现在只是从email list上能看出
发件人是 3***************[email protected] (xxx.edu是我的学校)
肯定是假的，email subj |
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s*****w
发帖数: 1527 | 20 i saw this example,
setpref('Internet', 'SMTP_Server', 'acs-smtp.bu.edu')
setpref('Internet', 'E_mail', 'y***********[email protected]')
sendmail('recipient', 'subj', 'body', 'attachments')
but if i want to send mail from my hotmail account,
how should i set up the above parameters ? |
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l****e
发帖数: 23 | 22 http://front.math.ucdavis.edu/math.AG/0608265
or
http://arxiv.org/abs/math.AG/0608265
Mathematics, abstract
math.AG/0608265
From: Fred W. Roush [view email]
Date: Thu, 10 Aug 2006 17:12:25 GMT (16kb)
Counterexample to the Hodge Conjecture
Authors: K. H. Kim, F. W. Roush
Subj-class: Algebraic Geometry
MSC-class: 14C30
We show that the Hodge conjecture is false in general for products of surfaces. We construct a K3 surface whose
transcendental lattice has a self-isomorphism which is not a linear |
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s**a
发帖数: 178 | 23 Company: Multi-Billion Hedge Fund
Loc: Greenwich CT
Position: Jr Quant Strategist
Description:
Looking for a junior quant strategist with strong math skills to join the
securitized products group.Prior knowledge/experience of ABS/CDOs/RMBS
required. PhD preferred but not required. Proficiency in programming
languages such as C++/SAS/Matlab a must.
***********************************************
Pls send resume in MS word format to s*[email protected] and put "[CT]Jr
Quant - Hedge Fund" in subje |
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C*********y
发帖数: 1424 | 24 原数据是
5 90 80 70 77 88 23
2 100 99 25
3 87 85 88 35
第一组数是考试的次数，其他的是考试分数，最后一个数是年龄
想出的效果是这样的
Obs SCORE1 SCORE2 SCORE3 SCORE4 SCORE5 NUMBER SUBJ AGE
1 90 80 70 77 88 5 1 23
2 100 99 . . . 2 2 25
3 87 85 88 . . 3 3 35
必须用array做
应该如何写这个code呢
我写的
Data scoreproblem;
array array_score[5] score1-score5;
if array_score[i]<60 then array_score[i]=" "@;
input N score1 score2 score3 score4 score5 age;
datalines;
5 |
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m*****8
发帖数: 654 | 25 suppose dataset like this
id date subject value flag(i want my out put var like this)
001 08/01/08 chinese -5
001 08/05/08 chinese -1 y
001 08/01/08 math -5
001 08/05/08 math -1 y
001 08/10/08 chinese 5
001 08/10/08 math 5
002 08/01/08 chinese -5 y
002 08/01/08 math -5 y
002 08/10/08 chinese 5
002 08/10/08 math 5
i want to give a flag to the most recent date record for each negative id-
subje |
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z*********o
发帖数: 541 | 26 title ’Choice of Chocolate Candies’;
data chocs;
input Subj c Dark Soft Nuts @@;
Set = 1;
datalines;
1 2 0 0 0 1 2 0 0 1 1 2 0 1 0 1 2 0 1 1
1 1 1 0 0 1 2 1 0 1 1 2 1 1 0 1 2 1 1 1
2 2 0 0 0 2 2 0 0 1 2 2 0 1 0 2 2 0 1 1
2 2 1 0 0 2 1 1 0 1 2 2 1 1 0 2 2 1 1 1
3 2 0 0 0 3 2 0 0 1 3 2 0 1 0 3 2 0 1 1
3 2 1 0 0 3 2 1 0 1 3 1 1 1 0 3 2 1 1 1
4 2 0 0 0 4 2 0 0 1 4 2 0 1 0 4 2 0 1 1
4 1 1 0 0 4 2 1 0 1 4 2 1 1 0 4 2 1 1 1
5 2 0 0 0 5 1 0 0 1 5 2 0 1 0 5 2 0 1 1
5 2 1 0 0 5 2 1 0 1 5 2 1 1 0 5 2 1 1 1 |
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d*******1
发帖数: 854 | 27 这个data subj 和gene的次序可能都是乱的 |
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w*********y
发帖数: 7895 | 28 我最近在练习SAS PROGRAMMING, 但是碰到这个难题. OUTPUT总是
不对. 加了 DLM=','后完全不对, 只用MISSING的话, DAYS那一个
基本是MISSING. 大家帮我看看吧. 谢谢大家了.
data kids;
infile datalines dlm=',' missover;
input subj origin $ sex $ grade $ type $ missingdays @;
do until (missingdays=.);
output;
input days @;
end;
input;
datalines;
1 A M F0 SL 2,11,14
2 A M F0 AL 5,5,13,20,22
;
run; |
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y****n
发帖数: 46 | 29 I don't know if this is what you want.
data kids;
length temp_days $100;
infile datalines dlm=' ' truncover;
input subj origin $ sex $ grade $ type $ temp_days $;
wn=countw(temp_days,',');
do rec=1 to wn;
days=input(scan(temp_days,rec),best.);
output;
end;
drop temp_days wn;
datalines;
1 A M F0 SL 2,11,14
2 A M F0 AL 5,5,13,20,22
run; |
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j*******y
发帖数: 58 | 30 ft这很明显每个id每个time都有multiple points，不出错才怪。除非specify
repeated time*week/subj=id,不过也有可能有些id在某个time*week有multiple
points。 |
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j*******y
发帖数: 58 | 31 what is the difference between
repeated / subj=id
and
random id?
I imagined they are the same and tested in SAS and they are different, but I
don't know why they are different. |
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z**********i
发帖数: 12276 | 32 算PROPORTION需要EFFECT SIZE吗?不是很确定.
但知道,他们的病人很少,应用新方法的可实施例很少.所以,他们想计算每年的有效率.
然后跟常规方法的有效率比较.
多谢回复!
then. What is the ratio of subj # in new trt vs old trt? What is the
porportion in the controlled arm? |
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R*********i
发帖数: 7643 | 33 Generally count each subj once per SOC. |
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c********q
发帖数: 18 | 34 请教大家一个问题：
data如下：
78 70 79 78 77 78 69 72 73 75
79 76 66 80 76 78 68 77 71 77 83
78 76 70 72 75 72 76 73 72
66 66 74 64 69 67 70 75 70 68 69
64 72 65 66 70 75 81 70 66 76 71 70 75 73 72
74 81 79 76 71 81 70 75 77 75 72 73 90 65
83 80 84 84 84 82 82 84 82 81 79 81 76 81
85 85 87 85 96 85 86 85 85 95 84 85 84
每一行应该是15个数字，一共八行，每一行代表不同的含义：
Row 1 is the satisfaction of males flying Delta airlines
Row 2 is the satisfaction of females flying Delta airlines
Row 3 is the satisfaction of males flying... 阅读全帖 |
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s******8
发帖数: 102 | 35 如果你是想把同样的数据读给四个公司，试一下：
Data airline;
Infile 'C:UsersDownloadsairline.txt' DLM='' missover ;
if mod(_n_,2) eq 0 then sex='female';
else sex='male';
do subj=1 to 15;
input rating @;
If not missing(rating) then do carrier="delta airlines","southwest airlines
","american airlines","united
airlines";
output;
end;
end;
run; |
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w*******y
发帖数: 60932 | 37 3 Day Sale! Rates starting at $40 plus a 2 for 1 Buffet!
Promotion Runs June 21, 2010 - October 31, 2010
Offer Expires June 23, 2010
linky doo:
https://reservations.mgmmirage.com/bookingengine.aspx?pid=MCH&host=offer&
code=X3DJNEB
fine print:
Offer must be booked by June 23, 2010. Offer is subject to promotional
availability. Two night minimum. One night deposit required to secure the
reservation. Credit/debit card charged must be presented at check-in with
valid identification. Rates are subje |
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w*******y
发帖数: 60932 | 38 This week Target has Five Star 1 subject notebooks for $1 each.
In the Sunday paper, there is a coupon for $1.00 off a purchase of any 2
Five Star products.
Combine the sale and the coupon for get 2 notebooks for a dollar.
It's not the best deal on notebooks, but Five Star notebooks really hold up
after a full semester of abuse.
I bought the same notebooks for $2 each 2 weeks ago at Walmart.
*Be gentle, it's my first deal posting...
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w*******y
发帖数: 60932 | 39 Just got this noteworthy email. Pretty hot IMHO if you fly Delta. Frequent
flyers please post with how good the miles?
Link:
https://www.deltaamexcard.com/offer/GR5FMBSC.aspx
Terms and Conditions
CCSG POID: U203:0001; OPEN POID: U352:0004
* Taxes/fees/restrictions: Companion Certificate is valid for one $99 round-
trip Economy Class Companion ticket with the purchase of certain adult round
-trip fares on published routings within the 48 contiguous United States.
Residents of Hawaii and Alaska mu... 阅读全帖 |
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g******0
发帖数: 1165 | 40 Wall Street Networking
Business - Investing
Description:
Inception: Feb 7th, 2007
Find over 100 links in this group to help you with jobs/internships,
Economics, Bloomberg tutorials, excel spreadsheets, fund manager interviews,
interview questions, learning about the industry (investment banking or
trading? You decide), developing contacts & learning how to make money in
the markets.
_______________
Wall Street Networking Fan Page
http://tinyurl.com/d3kszq
Blackberry Addicts group
http:/... 阅读全帖 |
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