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全部话题 - 话题: error
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s**********r
发帖数: 142
1
来自主题: EE版 - 问个sampling error 的问题
it is digital signal.
I am analyzing if there is any error from sampling frequency variation. My
DAC sampling frequency is 40MHz, is there any error if it varys from 41MHz
or 39MHz?


t
s**********r
发帖数: 142
2
来自主题: EE版 - 问个sampling error 的问题
谢谢
愿闻其详:假如没有clock synchronization, 如何分析上述的sampling error?
用moving average filter 可以reduce this error吗?
g********m
发帖数: 956
3
【 以下文字转载自 Science 讨论区,原文如下 】
发信人: glassdream (dashao), 信区: Science
标 题: Type 3 Font Error when WORD --> PDF
发信站: Unknown Space - 未名空间 (Tue Mar 1 11:35:28 2005) WWW-POST
该死的会议论文提交系统,要求每个PDF文件必须通过它的检查方可上载。
我是在MS WORD里编辑的公式,
每次通过以下操作生成PDF文件,
print to file (.prn) --> Gsview (.ps) --> Adobe Distiller (.pdf)
该系统就检测出一堆Type 3 Fonts errors.
我得一个一个公式重新改写。
但现在,它死活不认WORD里的积分号字符(以及MS WORD EQUATION EDITOR下的积分符号)

有没有大侠给我指点一下,如何让积分符号在被编译的PDF文件中通过检查。
或者用什么其他符号可以替代积分?
多谢。
n***h
发帖数: 364
4
来自主题: MedicalCareer版 - 2010 STEP 1 First Aid ERRORS
2010 STEP 1 First Aid ERRORS from :
http://www.doctorsintraining.com/USMLE/step-1/first-aid-errors-2010/?gclid=CN_f1vDpkaECFRZEbAodKQj7Uw
only as a reference, not from FA offical website.
l******9
发帖数: 579
5
【 以下文字转载自 Database 讨论区 】
发信人: light009 (light009), 信区: Database
标 题: error of loading file to table on Neteza
发信站: BBS 未名空间站 (Wed Apr 30 15:42:25 2014, 美东)
I need to load a data txt (.csv)file (32 GB) to a table in Neteza.
But, I got error:
08S01 Communication link failure
The communication link between the driver and the data source to which the
driver was
attempting to connect failed before the SQLDriverConnect function completed
processing.
I am not allowed to change the TCP setting. I have ... 阅读全帖
l******9
发帖数: 579
6
I am working on pyodbc in Eclipse (4.3.2v20140221-1852) with PyDev on Win 7.
My python is 3.2.5.
At my code:
cursor.execute("select top " + str(1) + " a.my_id, a.mycode" +
"from my_table as a where a.mycode = ?", aGivenCode)
I got an error :
pyodbc.ProgrammingError: ('42000', "[42000] [Microsoft][ODBC SQL Server
Driver]
[SQL Server]Incorrect syntax near the keyword 'as'. (156) (SQLExecDirectW)")
Why I got error at " as a " ?
thanks !
l******9
发帖数: 579
7
【 以下文字转载自 JobHunting 讨论区 】
发信人: light009 (light009), 信区: JobHunting
标 题: error of access IBM Netteza database from C# in Visual Studio
发信站: BBS 未名空间站 (Thu Jul 17 10:02:59 2014, 美东)
I need to access IBM Netteza database from C# in Visual Studio 2013 on win 7
.
connectionString="Driver={NetezzaSQL}; Server=xx.x.xxx.xxx;Database = my_db;
Uid=my_user_id;Pwd= my_password; ReadOnly=true;
I got exception:
An unhandled exception of type 'System.Data.Odbc.OdbcException' occurred in
System.Data.dll
Addit... 阅读全帖
w*z
发帖数: 71
8
来自主题: Statistics版 - Re: what is errors-in-variables fit?
one thing that i've learned is that you have to have a separate validation
data set to estimate the variance of measurement error.
SIMEX -- simulation extrapolation is very cool for measurement error models.
it's sort of like the bootstrap method for this kind of models.

variables.
a**h
发帖数: 19
9
来自主题: Statistics版 - 不明白这error 是什么意思
run 前面50+ variables 时没问题,run 全部data 就出现error,不明白这error 是什
么意思:
Downdated X'X is not positive definite, 7
> try1<-fit.s(yy,2,3,4,7:60)
> try1[1:10,]
X1 X2 X3 X4 X5 X6
X7 X8
1 22.52665 -1.0326881 -0.3328758 -0.7469406 -0.97646612 -0.05283234 0.
1501162 0.8690125
2 21.97283 -0.9030795 -0.3424166 0.3651694 0.29564228 -0.04548456 -0.
1800949 0.6858786
3 22.20403 -1.0110544 -0.3472111 0.1191513 2.01238029 -0.10587555 -0.
130628
f*******r
发帖数: 257
10
We need to distinguish between the error term and the regression residual.
The regression residual is, by design, uncorrelated with the X's. On the
other hand, we need to assume that the error term is uncorrelated with the X
's to have an unbiased estimator. These two are different concepts.
h*********o
发帖数: 151
11
来自主题: Statistics版 - standard deviation v.s. standard error
问一个简单的统计问题哦,standard deviation 和 standard error究竟有什么差别阿
?只是说standard error是estimated standard deviation 么?
再来,如果我现在做CI,一般有公式 95% Limit = estimate +/- s.e.*critical
value.
如果是假设normal distribution, critical value = 1.96.
但是如果我假设estimate是服从一个复杂的分布,而critical value只能用bootstrap
估计的话,那么 95% Limit = estimate +/- bootstrapped s.e.,这里的应该是s.e.
还是s.d.呢?
j*****e
发帖数: 182
12
You are modeling pi (the probability of Y=1).
So, the error is either 1-pi or -pi. Writing error in your model does not
provide any extra info. Please read the SAS book on mixed models for more
discussion.
l***a
发帖数: 12410
13
来自主题: Statistics版 - why this error in %if statement
38 %else %if %sysfunc(weekday(%sysfunc(today()))) in (4,6) %then %do;
39 data _null_; call symput('n',4); run;
40 %end;
ERROR: Required operator not found in expression: %sysfunc(weekday(%sysfunc(
today()))) in (4,6)
ERROR: The macro DATES will stop executing.
f*********8
发帖数: 165
14
来自主题: Statistics版 - 问个R的问题 不明白这个error message
我在 C:\Program Files\R\R-2.10.1\library\Rgraphviz\libs 下找到了Rgraphviz.
dll,
但是错误命令里给的path不一样,是不是应该改变path? 应该怎末该啊?谢谢
>library("Rgraphviz")
Error in inDL(x, as.logical(local), as.logical(now), ...) :
unable to load shared library 'C:/PROGRA~1/R/R-210~1.1/library/Rgraphviz/
libs/Rgraphviz.dll':
LoadLibrary failure: The specified module could not be found.
Error: package/namespace load failed for 'Rgraphviz'
w******8
发帖数: 59
15
来自主题: Statistics版 - Error in x11() : X11 module cannot be loaded
Help please. Once I installed the new version of R. This error message
appears when I type "x11()": Error in
x11() : X11 module cannot be loaded
What should I do? I've searched on the internet and don't know what to do
yet.
Thanks for your help!
A*******s
发帖数: 3942
16
Error: User does not have appropriate authorization level for library work
在运行自己写的一个macro的时候,这个error偶尔会出现,完全没有规律。按照sas
support的办法http://support.sas.com/kb/7/832.html,改了work library那个folder的read-only attribute,但是每次把勾取消了在按OK,再右键打开属性,还是有个勾在那。有谁知道有啥办法可以搞定这个么?
f***a
发帖数: 329
17
你是指leave one out cross-validation,还是leave one variable out?
error rate指prediction error rate?
s*******9
发帖数: 35
18
我用的是claims data, 一个dataset 差不多又70,000,000 rows. 我只是用了一个简单
的sql去提取我要的数据。但是有的
dataset 得到error message: An I/O error has occurred on file abc.DATA, 有的
却没有。这样的情况以前从来没有出现
过,我上个月才在同样的datasets上run过同样的code。
请教大家,这是怎么一回事?这个应该怎么解决。
d******e
发帖数: 7844
19
是你弄混了。standard deviation是要知道population density的,而density是
unknown的,所以只能用standard error来估计。
你给的这个wiki的链接无非就是换个说法而已。The standard error is the standard
deviation of the sampling distribution of a statistic。 所谓的sampling
distribution,就是population density的一个empirical estimator罢了。
T*********n
发帖数: 36
20
来自主题: Statistics版 - 请教个计算standard error的问题
是LD实验中碰到的问题。实验得到A,B两个量的值各10个,记为Ai和Bi, i=1,…,10.
然后定义变量C如下:
Ci=(Ai/BBar)-1, 这里BBar是mean of Bi。
请问如何计算Ci的standard error?是不是可以得到Ci的数值后直接计算这些数值的
standard error?这样BBar的variance有没有得到反映?还是应该用其它的方法?
请大家帮忙,多谢!
k**********a
发帖数: 255
21
来自主题: Statistics版 - 求助 SAS 一个error 老改不对
3222 libname sw 'C:\Users\given\Desktop\sw';
NOTE: Libref SW was successfully assigned as follows:
Engine: V9
Physical Name: C:\Users\given\Desktop\sw
3223 proc format lib=sw;
3224 value $itemfmt
3225 'C'='Cassette'
3226 'R'='Radio'
3227 'T'='Television';
NOTE: Format $ITEMFMT is already on the library.
NOTE: Format $ITEMFMT has been written to SW.FORMATS.
3228 run;
NOTE: PROCEDURE FORMAT used (Total process time):
real time ... 阅读全帖
m*******g
发帖数: 3044
22
来自主题: Statistics版 - SAS ERROR
在RUN 一个SAS CODE, 出现ERROR:
ERROR: Array subscript out of range at line 84 column 3.
什么意思? LINE 84 我知道,COLUMN 3指的是?
m******t
发帖数: 273
23
来自主题: Statistics版 - error of gamma.fit() in python (转载)
【 以下文字转载自 Quant 讨论区 】
发信人: myregmit (myregmit), 信区: Quant
标 题: error of gamma.fit() in python
发信站: BBS 未名空间站 (Sat Mar 15 11:30:18 2014, 美东)
in Python 3.2, I need to find gamma fit for data.
param = gamma.fit(samp) // samp is a list of double
I got error: TypeError: cannot perform reduce with flexible type
Any help wouldbe appreciated.
best
l******9
发帖数: 579
24
【 以下文字转载自 Database 讨论区 】
发信人: light009 (light009), 信区: Database
标 题: error of loading file to table on Neteza
发信站: BBS 未名空间站 (Wed Apr 30 15:42:25 2014, 美东)
I need to load a data txt (.csv)file (32 GB) to a table in Neteza.
But, I got error:
08S01 Communication link failure
The communication link between the driver and the data source to which the
driver was
attempting to connect failed before the SQLDriverConnect function completed
processing.
I am not allowed to change the TCP setting. I have ... 阅读全帖
y********0
发帖数: 638
25
来自主题: Statistics版 - Memory Error in pandas.concat with Python
【 以下文字转载自 DataSciences 讨论区 】
发信人: youyou2010 (悠悠), 信区: DataSciences
标 题: Memory Error in pd.concat with Python
发信站: BBS 未名空间站 (Mon Aug 24 15:22:34 2015, 美东)
I am more recently working with 80 dataframes in python each of which holds
650K rows with the same 11 columns varying from string to number. My initial
goal is to concatenate all dataframes and make a general analysis but I keep
hitting the dead ends in doing so.
1. I started from pd.concat([df1,df2]) but ended up with memory error and
fai... 阅读全帖
w*****n
发帖数: 375
26
Test的critical value 是你自己来定, 所以你可以调整critical value 来让 type I
error rate 正好在 nominal level.
比较两个test的时候, 调整两个的critical values 来让type I error rate 都在
nominal level的时候才是公平比较。
t*****m
发帖数: 683
27
.com太顿没法用,只好用.cn
.cn时不时error两下就忍了,今天是时不时才能成功打开两下,一直error
不是说数据库在北京吗,还proxy个鸟啊,脱裤子放P
m*****n
发帖数: 760
28
来自主题: CellularPlan版 - 安卓play store error 491怎么破? (转载)
【 以下文字转载自 PDA 讨论区 】
发信人: misssun (鹰熊哥), 信区: PDA
标 题: 安卓play store error 491怎么破?
发信站: BBS 未名空间站 (Thu Jun 1 02:25:14 2017, 美东)
前面跟风买的zte k88,突然就不能download或者update任何app,error code 491
google之后发现,有这个问题的很多手机都是zte
试了几个网上的办法,都不灵。
怎么破这个问题?请版上各路大神指点。
l******9
发帖数: 579
29
【 以下文字转载自 Database 讨论区 】
发信人: light009 (light009), 信区: Database
标 题: pypyodbc error access netezza SQL server on win7
发信站: BBS 未名空间站 (Sun Dec 21 10:15:22 2014, 美东)
I need to access IBM netezza SQL database from python on win 7. I have
installed Eclipse and python 3.2, pydev, and pypyodbc https://pypi.python.
org/pypi/pypyodbc/1.3.3). It worked well for MS SQL server.
But, it got error for IBM netezza.
import pypyodbc
conn = pypyodbc.connect("DRIVER={NetezzaSQL};SERVER={my_server_name};
D... 阅读全帖
b*****m
发帖数: 438
30
【 以下文字转载自 TAX 讨论区 】
发信人: bigworm (不要搞错,是老虎!), 信区: TAX
标 题: E file federal tax was rejected for W2 error. help!
发信站: BBS 未名空间站 (Tue Jan 31 21:45:02 2012, 美东)
E file federal tax was rejected, the reason (the email I got):
______________________________________________________________
Dear Free File Taxpayer:
#2
... 阅读全帖
b*****m
发帖数: 438
31
【 以下文字转载自 TAX 讨论区 】
发信人: bigworm (不要搞错,是老虎!), 信区: TAX
标 题: E file federal tax was rejected for W2 error. help!
发信站: BBS 未名空间站 (Tue Jan 31 21:45:02 2012, 美东)
E file federal tax was rejected, the reason (the email I got):
______________________________________________________________
Dear Free File Taxpayer:
#2
... 阅读全帖
r***e
发帖数: 2000
32
Pilots of the Asiana Airlines jet that crashed at San Francisco
International Airport over the weekend allowed the Boeing 777's speed to dip
dangerously low, and then apparently ran out of time to correct their
landing approach, according to preliminary data released by investigators.
While stopping short of pinpointing pilot error as the likely cause of the
fiery crash that killed two teenage passengers and injured dozens of others,
National Transportation Safety Board Chairman Deborah Hersman ... 阅读全帖
T**********e
发帖数: 29576
33
扯淡吧,很多所谓enroll的都还没交钱呢,这是最大的error。
b*******s
发帖数: 3614
34
网站price error的不只中餐馆才有。
t******o
发帖数: 3223
35
这个帖子里的教授的信读上去很像 肥钱包和死勒咳滴偶 里面的搞 deal的人去argue
price error的语气. 挺好笑的
c**u
发帖数: 14
U*E
发帖数: 3620
37
Pilots of the Asiana Airlines jet that crashed at San Francisco
International Airport over the weekend allowed the Boeing 777's speed to dip
dangerously low, and then apparently ran out of time to correct their
landing approach, according to preliminary data released by investigators.
While stopping short of pinpointing pilot error as the likely cause of the
fiery crash that killed two teenage passengers and injured dozens of others,
National Transportation Safety Board Chairman Deborah Hersman ... 阅读全帖
v*****o
发帖数: 113
38
来自主题: USANews版 - Obama leads in OH, no sampling error
A new CNN Poll of Polls on Monday indicates the race in Ohio–perhaps the
most decisive battleground this presidential cycle–is locked in a
statistical dead heat.
The poll shows President Barack Obama at 50% and Mitt Romney at 47% in Ohio,
one day before the election. Those numbers are an average of three Ohio
polls of likely voters conducted in the last week: Ohio Poll/University of
Cincinnati (Oct. 31-Nov. 4); CNN/ORC International (Oct. 30-Nov. 1) and NBC/
Wall Street Journal/Marist (Oct. 31-N... 阅读全帖
g********w
发帖数: 2539
39
来自主题: USANews版 - Obama leads in OH, no sampling error
卧槽,要怎么poll才能poll出"no sampling error"的采样?挨家挨户一个不拉抓出来
问么?

Ohio,
NBC/
have
l*****8
发帖数: 16949
40
来自主题: USANews版 - Obama leads in OH, no sampling error
没有Sample Error?可见蠢到什么程度了。
e*9
发帖数: 2289
41
这特么也能搞错,太牛鼻了
Some classification markings found in email messages on Hillary Clinton's
private server were the result of "human error" and the related information
was not considered classified at the time it was sent to her, State
Department spokesman John Kirby said Wednesday.
y*h
发帖数: 25423
42
来自主题: Automobile版 - method to read ECU error code of Toyota
Here is a good article about how to read error code (e.g., when
"Check Engine" lights up) of Toyota ECUs.
http://www.off-road.com/toyota/tech/codes/
t**********g
发帖数: 154
43
我的车是Toyota Camry 2002 4 Cylinder,前一阵Check Engine Line突然亮了。检查
了一下, error code: P0446 (Evaporative Emission Control System Vent
Control Valve Circuit). 当时给Fuel Cap摸了一圈油然后Check Engine立即就不亮了
。可是开了4,5天之后Check Engine就又开始亮。反反复复好几回。修车的也不清楚是
怎么回事。不知道有没有人遇到过同样的问题,有没有什么解决办法?先谢谢啦!
t**********g
发帖数: 154
44
没拔电池,什么都没有动。今天又亮了,就又去测了一次,可是刚把computer连上显示
error code:P0446之后一起动车就又不亮了,一切正常,感觉很不可思议。因为什么
都没有碰,连油箱盖都没有打开。不知道有没有办法修好,若是不好修的话,就这么继
续开有没有问题?
d*****g
发帖数: 1538
45
我的小rabbit顺顺当当得开了6年半了,昨天trade in给dealer,今天交车。大概它不
高兴开得挺好我不要它了,最后的最后给我出了个小难题。6-cd player里有我放了两
三年没换的几张CD,刚eject出一张,居然就变成"CDC Hardware error"。
网上一查,原来是个很常见的问题,但是对我有用的solution隐藏得很深。:)
试了网上能找到的各种各样的方法,包括:等待几个小时,reset电池,硬放一张CD进
去。最后,还是youtube救了我。在一个youtube求助帖下面的comment里有一个变态方
法。
1.选到CD option
2. 拼命用手掌打CD机
我打了好多次,都失望透顶了,居然,CD状态变成checking了,赶紧把所有的CD都
eject出来,搞定!显示No CD。工作正常啦。
据原贴主说,这是他气得不行的时候,无意中狠拍了player一下发现的。
觉得对VM车主可能有用,分享一下。
youtube link: https://www.youtube.com/watch?v=df0bfHoeuOk
O*t
发帖数: 56
46
Engine light亮了,导致防滑亮了和cruise闪了。 过了几天自己都正常了。
service的时候dealer查了一下error code, 说是来自CVT,现在倒是正常状态
这种情况这车还能留么。。
O*t
发帖数: 56
47
这个很奇怪,并不是在国内,用的也全是premium级别的油。
我在网上大概看了下的确是三灯齐亮相对常见,说是subaru的设定是只要Engine Ligh
t 亮了系统就自动关闭车身稳定系统和定速巡航功能。这个可能就是导致三灯齐亮的因
素。
但是灯亮肯定是有sensor数据不正常了 - 去了dealer那边查了code,只有来自CVT的ol
d code. 考虑到原来engine light亮肯定对应一个error code, 我就默认就是来自于那
个cvt code了。
不过你说的高速跑让我想到了我的驾驶pattern, 基本上都是超短途,开的很少。这个倒
是可能相关

三灯齐亮。Subaru 的著名故障或 Bug.
这个故障国内出现比较多,一般认为跟汽油质量有关,跟CVT无关。一多半不用修,换
个牌子的汽油,在高速跑跑就好了。有的需要清洗一些部件,节气门还是什么东西。
l*******l
发帖数: 1959
48
二手交易风险自负!请自行验证是否合法和一手卡!:
我想卖的物品:
X230 price error order IPS+SSD+FP+extra batte
单张面值:
可接受价格(必须明码标价!):
$680
物品新旧要求:
New
邮寄方式要求:
YL
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
BOA
其他补充说明:
广告的有效期:
物品来源(Required for All Cards!):
lenovo
我的联系方式:
PM
Warranty期限:
1year
能否证明是合法的一手卡?(Required for All Cards!):
yes
state and zip:
NC
p*****e
发帖数: 989
49
我想卖的物品:
最近Price error的 Lenovo X230,配置如下:
Intel Core i3-3120M on MB
Windows 7 Professional 64
8 GB PC3-12800 DDR3 (2 DIMM)
128GB Solid State Drive SATA3
6cell, ThinkPad Battery X44+
Intel Centrino WL-N 2200
1 Year Depot/Express Warranty
65W AC Adpt US (2pin)
X230 720p HD Camera
X230 12.5HD Premium WWAN 2x2
KYB (Backlit) US English
X230 UltraNav without FPR
Security Chip Enabled
可接受价格(必须明码标价!):
780
物品新旧要求:
new
邮寄方式要求:
your label
付款方式说明:
BOA transfer
Boston的可以见面交易
广告的有效期:
till gone
我的联系方式:
pm
s*****x
发帖数: 3679
50
啥price error了?
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