d******i
发帖数: 7160 | 1 好像所有的方法只能给出个迭代器，强制转为pair<>*是不行的。
那么是不是只要这个iterator不失效(在map里禁得住insert，delete的话)，
就可以当做指针来用呢？
谢谢！ |
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t****t
发帖数: 6806 | 2 &*iterator gives pointer. why do you need force conversion? and why do you
need pointer in the first place? (unless, of course, you are calling legacy
code --- but legacy code won't take pair<> anyway.)
when and how iterators are invalidated is clearly documented in STL. |
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K***a
发帖数: 146 | 3 ACS Women Chemists Committee (WCC) will hold a wine/cheese/chocolate pairing
and networking event to be held at the Bernardo Winery (www.bernardowinery.
com) on the evening of Thursday, April 28, 2011.
详情请见 flyer,将来的这几个礼拜会有更多的sponsorship.我们预计大概会有100个
attendees。
欢迎大家前来, social不限于women, 也不限于chemist, 更不限于ACS Member。
喜欢social的，想跟local employee 面对面交流的，都可以来参加。
如果有愿意sponsor我们WCC这次活动或者future events的，或者有任何问题，欢迎跟我
联系。
WCC欢迎更多的朋友加入，如果你有这一份热情，请迅速联系我，呵呵。
站内信箱或者f**********[email protected] 都可以。谢谢大家。 |
|
k*******3
发帖数: 1909 | 4 对illumina出来的pair-end reads几个问题
1. 这些reads都在positive strand上？还是都在negative strand上？还是既可能在
positive strand上也可能在negative strand上？
2. 这些reads的方向都是5'->3'吧？
谢谢！ |
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x******m
发帖数: 736 | 5 thanks for reply.
cannot find the exact tutorial for mixed single and pair-ended cases. Do you
mind show me one? many thanks. |
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k*****n
发帖数: 323 | 6 可以啊，你把paired去掉一边的read就好了 |
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k***a
发帖数: 636 | 7 楼主这是坚持自己理解，和问问题没啥关系吧，他也说了听听大家的想法。
这个问题真是见仁见智了，细胞实验的一个assumption就是细胞是均一的，所以楼主的
想法可以理解。 估计用paired和unpaired的人都很多。。不知道领域有没有一致的标
准了。 |
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f******e
发帖数: 465 | 8 This is a very good post. I have also thought about this problem. In short
and in general, I believe the trend is that a positive underlying
correlation between pairs will yield a smaller p-value, thus higher power
for detecting the same difference. But I am not sure this is 100% true,
because mathematically I think the degree of freedom should also play a role
in determining the p-value. |
|
C*********u
发帖数: 811 | 9 Is it valid to use paired t-test for littermates if different littermates
are quite variable? |
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y***i
发帖数: 11639 | 10 我认为你是对的。
两者都可以，paired ttest说不定更合理。 |
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c****1
发帖数: 1095 | 11 生物实验，同一批的细胞，如果培养时间和条件完全一样，我们就认为不同dish的细胞
，都是一样的的。每个细胞可能有差异（比如处于不同的分裂时期）。但是，每一个
dish的细胞，作为一个整体，都是一样的。
paired |
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y***n
发帖数: 109 | 12 我需要一个很小的affinity tag pair，不知道有没有比下面这些还小的呢？
FLAG/MYC/HA/HIS & antibody， 120+ kDa
biotin & Streptavidin, 52 kDa
HaloTag & ligand, 34 kDa
SNAP tag & ligand, 20 kDa |
|
S****B
发帖数: 17 | 13 Nanobody……10-15KDa
[在 yuban (java) 的大作中提到：]
:我需要一个很小的affinity tag pair，不知道有没有比下面这些还小的呢？
:FLAG/MYC/HA/HIS & antibody， 120+ kDa
:biotin & Streptavidin, 52 kDa
:HaloTag & ligand, 34 kDa
:SNAP tag & ligand, 20 kDa |
|
K***a
发帖数: 146 | 14 ACS Women Chemists Committee (WCC) will hold a wine/cheese/chocolate pairing
and networking event to be held at the Bernardo Winery (www.bernardowinery.
com) on the evening of Thursday, April 28, 2011.
详情请见 flyer,将来的这几个礼拜会有更多的sponsorship.我们预计大概会有100个
attendees。
欢迎大家前来, social不限于women, 也不限于chemist, 更不限于ACS Member。
喜欢social的，想跟local employee 面对面交流的，都可以来参加。
如果有愿意sponsor我们WCC这次活动或者future events的，或者有任何问题，欢迎跟我
联系。
WCC欢迎更多的朋友加入，如果你有这一份热情，请迅速联系我，呵呵。
站内信箱或者f**********[email protected] 都可以。谢谢大家。 |
|
s***d
发帖数: 15421 | 15 后来问了教授~教授说其实就是等于differential pair 的输入电阻Rid作为feedback
链接的input stage effective impedance~~其实Q2也就是vi gound 后的Q1 base的
effective impedance~ |
|
m*******n
发帖数: 236 | 16 大家好，最近被要求写个报告，里面要介绍pairs trading在海外应用情况，各位大牛
能不能帮个忙简单说说？谢谢啊！ |
|
l*******z
发帖数: 108 | 17 比如选了10对股票做pair trading, 怎么分配资产 max return and min risk ?
现在最流行的是什么model？有人做过相关的优化吗？ |
|
L******g
发帖数: 1371 | 18 一直很好奇，怎么找pair,
过去30天的correlation 吗？ |
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p******i
发帖数: 1358 | 19 这样的话更像在说risk model，那还得有个alpha model才行
和pairs trading这种cointegration based trade就不是一回事了 |
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l*******z
发帖数: 108 | 20 是的，pair trading只是一个概念而已，并不是一定要一对，可以做一篮子的股票。
cointegration based trade 不是alpha 的一种吗？ |
|
z*****6
发帖数: 20 | 21 诚心求教，怎么作超过2维的pair trading？ |
|
k****o
发帖数: 37 | 22 别笑话小弟了
实在不了解pairs trading
请大牛教我 |
|
l**********e
发帖数: 336 | 23 pairs trading -> classical StatArb, looks like a quant trader position (
which is what you want, right) |
|
p****u
发帖数: 2596 | 24 还可以,我说的是那种backtest做strategy的那种。不过一时半会作出赚钱的东西不太
可能.
如果你说的是肉眼屏幕凭经验找pair的话，那还是算了
trade |
|
a***x
发帖数: 26368 | 25 pair trading还有搞头么？。。。。。。。 |
|
D******n
发帖数: 2836 | 26 pairs(x,panel=panel.smooth) |
|
o******6
发帖数: 538 | 27 ☆─────────────────────────────────────☆
restart (testit) 于 (Sun Mar 15 17:35:19 2009) 提到:
请问：
同一组用户，每个用户都先后用两种工具(A,B)完成同一个任务。
其中一半用户先用A完成任务, 再用B完成任务；
另外一半用户先用B完成任务, 再用A完成任务.
我的目的是比较那种工具更方便使用一些.
请问在做t-test时, 应当选用 paired samples t-test 还是
independent samples t-test.
非常感谢!
☆─────────────────────────────────────☆
lightyear11 (lightyear) 于 (Sun Mar 15 18:01:20 2009) 提到:
The respond variable is how well the target is completed(maybe time?).
I think here you have 3 predic |
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H******e
发帖数: 333 | 28 我不太知道SAS里面这个paired t-test表格该怎么读
就是图里面（图在2楼）上面的那个表。里面有3个mean，但这3个mean并不是第一组数据的mean，第二组数据的mean，差值的mean。是根本不在一个数量级上，因为第一组、第二组数据大多数都是7、80的样子，mean不可能那么小。。。
还有后面的3个standard deviation都是啥？
表头里面的Lower CL和Upper CL指的是啥？
第二个表格我知道怎么读
实在不好意思，我在网上搜了半天，没找到相关的解释。我手头也没有sas的书。俺是
新手
所以只能跑上来问问了。
谢谢各位！ |
|
m**********r
发帖数: 122 | 29 请问pairwise t-test 和 paired t-test是一回事吗？ |
|
l*********s
发帖数: 5409 | 30 pair-t test is one sample test for the difference, whose distribution has
nothing to do with its parents. |
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i****e
发帖数: 151 | 31 能不能LOG TRANSFORM，然后可以近似NORMAL DISTRIBUTION，再用PAIRED T TEST?
WILCOXON SIGNED RANK TEST对于小SAMPLE容易产生SMALLER P |
|
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w*******y
发帖数: 60932 | 33 my first post, ive been waiting for this to go down. It was on my wishlist
for 4 months I think. I missed it when it was 180$, now its less than 3$
down to 177$ shipped, its the lowest ive seen. these are pair!!!!!!! heres
the link:
Link:
http://www.amazon.com/gp/product/B0012MD7GE/ref=oss_product
|
|
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w*******y
发帖数: 60932 | 35 Newegg
Polk Audio Atrium 55 White Indoor/Outdoor All-Weather Speaker Pair
= $129.99 with free shipping
*deal starts at 1 PM PST*
|
|
w*******y
发帖数: 60932 | 36 Go to: Link:
http://ultimateears.com/products/700
Use code: UEFREE
For your free pair of UE 700s
only 1000 available for redemption
UE's Facebook page has reached 10,000 fans
|
|
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w*******y
发帖数: 60932 | 38 For anyone (like me) who is scared of all the negative reviews for the 2TB
Western Digital drive from Amazon, you can get the same dollar-per-gigabyte
price right now on a pair of 1.5TB Samsung EcoGreen drives from eWiz. These
drives have *much* better reviews than the WD being sold at Amazon. (I
realize this may just be a RAID issue, but I'm seeing far too many DOA
comments at Newegg).
The drives are $76 each with free shipping and code CLASS15 gets you $15 off
$100 for a total of $137 for bot |
|
w*******y
发帖数: 60932 | 39 Sorry this is kind of long and takes some time to explain....
Amazon has a Samsung Bundle promotion: Link:
http://www.amazon.com/gp/feature.html/ref=amb_link_353712342_3?ie=UTF8&docId=1000535781
Buy a Qualifying Samsung HDTV and Get a Free Blu-ray Disc Player and Four
Pairs of 3D Glasses
The mistake I think Amazon made on the promotion page is the Blue-ray Player
model, and also the number of free 3D glasses.
On the promotion page, the only Blue-ray player listed as eligible is
Samsung BD-C8000 |
|
w*******y
发帖数: 60932 | 40 AudioQuest K2 terminated speaker cable - UST plugs 8' (2.44m) pair
at Amazon:
http://www.amazon.com/AudioQuest-K2-terminated-speaker-cable/dp/B000J36XR2
List Price: $8,450.00
Price: $6,800.00 & eligible for free shipping with Amazon Prime
You Save: $1,650.00 (20%)
I searched and didn't find this deal, so it's not a repost (unless the
previous poster misspelled or mistyped, but that probably never happens).
Pretty awesome for my first deal post, if I do say so myself. Go easy with
the rep point |
|
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w*******y
发帖数: 60932 | 42 Dell Home
Acoustic Research AW880 Indoor Wireless Speakers (Pair)
$150 - $90 Instant Savings
= $60 ($58 w/ DPA) + Free Shipping
|
|
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w*******y
发帖数: 60932 | 44 Sounds cool to me.. I ordered Men's 10 pair few months back and i am
satisfied with the purchase
Its back again !!!
Deal is from Link:
http://graveyardmall.com/index.html
Shipping is around $6 that makes $1.8 per item approximately
|
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w*******y
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IMAX 3D Blu-Ray Disc & Voucher for "How to Train your Dragon 3D" $2679 free
shipping from US Appliance
Note, this the latest 3D Starter kit, add both to cart and discount will
show on the final Checkout screen
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innovations and performance found in our 2010 line of Plasma TVs. First
impressions begin with an elegantly styled brushed metal gray ca |
|
w*******y
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Link:
http://www.facebook.com/#!/event.php?eid=146114795426366&ref=ts
#!/event.php?eid=146114795426366&ref=ts" rel="nofollow" target="_blank"
onclick="try{pageTracker._trackEvent('thread', 'click', '2242279 - levis-san
-francisco-717-free-pair-of-jeans-and-performance-by-she-&-him');} catch(err
) {return true;}">http://www.facebook .com/#!/even...366&ref=ts
Levi's Wear What Fits Event
Time: Friday, September 17 10:00am - 5:00pm
Location: Union Square, Powell St |
|
w*******y
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Add 4 pairs of the $2.99 socks and use promo go4ten
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w*******y
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Capelli 2-pk. Bubble Gum Dot Flip-Flops
original $10.00
Link:
http://www.kohls.com/kohlsStore/kids/swimshop/kidssandalsflipflops/girls/PRD~567471/Capelli 2pk Bubble Gum Dot FlipFlops.jsp
MEDIUM
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Beaded details add a dazzling touch.
Padded foam footbed |
|
w*******y
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Polk Audio Monitor30 Series II Two-Way Bookshelf Loudspeaker (Black) Pair
$79.99 with code EMCZYZN65
shipping is $2.99
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