C******t
发帖数: 72 | 1 39:data work.empsalary;
set work.people (in = inemp)
work.money(in = insal);
run;
In the set work.empsalary, each observation comes from either people or
money. Therefore, inemp and insal can not be true at the same time.
if insal and inemp; =>false
for example;
people:
x y
1 2
salary:
x y
3 4
empsalary:
x y inemp insal
1 2 1 0
3 4 0 1
Alternatively, if we change the question to:
set work.people (in = inemp);
work.money(in = insal);
run;
The SAS data set WORK.PEOPLE has 5 observation |
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h***x
发帖数: 586 | 2 'set a b;' will appends obs from b to the end of a,
if there was no 'if insal and inemp',
there would be 12 obs. 5 from inemp and 7 from insal
Since there is no intersection between these 5 and 7, so the final dataset
has zero obs if 'if insal and inemp' applys. |
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o******6
发帖数: 538 | 3 ☆─────────────────────────────────────☆
jessie31 (jessie024) 于 (Sun Mar 1 01:01:56 2009) 提到:
16 data work.empsalary;
set work.people(in=inemp);
work.money(in=insal);
if insal and inemp;
run;
The data set work.people has 5 obs, and the data set work.money has 7
observations.
How many obs will the data set work.empsalary contain?
A.0
B.5
C.7
D.12
Why the answer is A.
The default value for inemp and insal is 0?
73.
data work.test;
First='Ipswich, England';
City_Country=substr(Firs |
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y********0
发帖数: 638 | 4 查一下in=的意思就知道了.
if insal and inemp 是说the new obs can be found in both the datasets.
但是set a b只是简单的concatenate ,就是两个数据接起来.永远都是
insal=1,inemp=0 或者insal=0,inemp=1组合.
money |
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z*********o
发帖数: 541 | 5 The following SAS program is submitted:
data work.empsalary;
set work.people (in = inemp)
work.money (in = insal);
if insal and inemp;
run;
The SAS data set WORK.PEOPLE has 5 observations, and the data set
WORK.MONEY has 7 observations.
How many observations will the data set WORK.EMPSALARY contain?
A. 0
B. 5
C. 7
D. 12
Answer: A
答案为啥是A呢?能不能帮忙解释一下 |
|
d*******1
发帖数: 293 | 6 Two sas data set: EMPLOYEE and SALARY
name age name salary
Bruce 30 Bruce 40000
Dan 35 Bruce 35000
Dan 37000
Dan.
The following SAS program is submitted:
data work.empsalary;
merge work. employee (in = inemp)
work.salary (in = insal);
by name;
if inemp and insal;
run;
How many observations will the data set WORK.EMPSALARY contain?
A. 2
B. 4
C.5
D. 6
Answer: B
It looks like the answer is A, why B, that is strange. |
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g*******t
发帖数: 124 | 7 The following SAS program is submitted:
data work.empsalary;
set work.people (in = inemp)
work.money (in = insal);
if insal and inemp;
run;
The SAS data set WORK.PEOPLE has 5 observations, and the data set WORK.MONEY
has 7 observations.
How many observations will the data set WORK.EMPSALARY contain?
A. 0
B. 5
C. 7
D. 12
=>The answer is A, I ran SAS and it is A. I don't understand. For concanetin
g data, isn't everything in the combined data file? Why isn't it 12? |
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s*******2
发帖数: 791 | 8 The following SAS program is submitted:
data work.empsalary;
set work.people (in = inemp)
work.money(in = insal);
if insal and inemp;
run;
The SAS data set WORK.PEOPLE has 5 observations, and the data set WORK.MONEY
has 7 observations.
How many observations will the data set WORK.EMPSALARY contain?
A. 0
B. 5
C. 7
D. 12
Answer: A
为什么？ 我觉得 BCD都有可能呀。
QUESTION 72
The following SAS program is submitted:
data work.test;
First = 'Ipswich, England';
City = substr(First,1,7);
City_Country= City!!'; '!!'E |
|
o****n
发帖数: 281 | 9 有个问题一直没有想明白，请大仙们帮助：
the following SAS program is submitted:
data work.empsalary;
set work.people(in = inemp)
work.money(in = insal);
if insal and inemp;
run;
The SAS dataset work.people has 5 observations, and the dataset work.money
has 7 observations. How many observations will the dataset work.empsalary
contain?
答案是0，我想如果people和money这两个datasets有共同的observations，结果应该是
一个非零的数（不大于5）对吧？是说一定要有一个by statement才行？ |
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o****n
发帖数: 281 | 10 啊？为什么可能是12？
if insal and inemp 这个表示的是两个dataset共有的observations被subset出来把？
我觉得最多的obs个数是max(insal, inemp)... |
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b******s
发帖数: 345 | 11 The following SAS program is submitted:
data work.empsalary;
set work.people(in=inemp) work.money(in=insal);
if insal and inemp;
run;
The SAS data set work.people has 5 observations, and the data set work.money
has 7 observations.
How many observations will the data set work.empsalary contain?
A. 0
B. 5
C. 7
D. 12
Answer: A
我怎么觉得是D啊，请知道正确答案的讲解下，谢谢！！！ |
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i**********a
发帖数: 32 | 12 马上就要考试了，base 123题中还有几题没有弄清楚，希望能得到大家的解答。谢谢！
17. The contents of two SAS data sets named EMPLOYEE and SALARY are listed
below:
EMPLOYEE SALARY
name age name salary Bruce 30 Bruce 40000
Dan 35 Bruce 35000
Dan 37000
Dan.
The following SAS program is submitted: data work.empsalary;
merge work.employee (in = inemp)
work.salary (in = insal);
by name;
if inemp and insal; run;
How many observations will the data set WORK.EMPSALARY contain?
A. 2
B. 4
C. 5
D. 6
为什么选B?
57. The SAS data set name... 阅读全帖 |
|
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l**********i
发帖数: 11748 | 14 去马路边捡一分钱先
然后
http://www.pepboys.com/tires/treadsmart/take_the_penny_test/
The Penny Test for Tires - How it works
Just take a penny, hold it vertically with Lincoln facing you and place the
dated section of the coin into several tread grooves across the tire. If
part of our 16th President’s head is always hidden by the tread, you have
more than 2/32" of tread depth remaining.
If you duplicate the process with a quarter and part of Washington’s head
is always hidden, then you have more than 4/32”... 阅读全帖 |
|
e**1
发帖数: 452 | 15 他们给我的菜单是贵点。
我是想看看这些项目那些收费离谱？ 其实 什么 windshield washer， battery 我知
目前都是可换可不换的东西。 他们列出来让我选也没大问题， 就是不知道列出来的价
格有没有猫腻。
labor 费 都这么贵吗？ 300多刀？换4个片？ youtube了一下， 好像不是很困难， 不
过我没有工具。 http://www.youtube.com/watch?v=Rx0CyW4OVn8 （结尾很震撼）
pad 的价格我看了看 4 pair下来 也没太离谱， 网上的价格便宜的还得30/pr, 一般也
的40， 50 那两轮 ×2 也得60～100， 他们要89.99 马马虎虎。
insallation kit 是买pad 带的？ 还是需要单买?
好像网上没看到。 |
|
w****2
发帖数: 936 | 16 The Proper Way to Install and Reset an ECU
June 1, 2011 5.3K 0 Is this guide helpful? 5 Report
Share:
Installing an ECU yourself is easy. This guide lists the proper way to
insall and reset an ECU.
First you have to make sure the ECU you are about to install has the same
part number as the ECU that was running the car. If the numbers match,
follow these steps:
1. Unplug the battery from the car
2. Let the car sit for fifteen (15) minutes unplugged.
3. Install the n... 阅读全帖 |
|
r*****j
发帖数: 7481 | 17 今天我这附近的一个insaller给了我一个quote，我估计不需要paint correction。
Without any paint correction it runs $595 to apply the Opti-Coat Pro. With a
single stage correction it runs $745. We cover the entire car including the
XPEL. Wheels we remove and coat both front/backside of the rim plus we coat
the calipers. We also airbrush it onto areas like the grill since they can'
t be leveled properly with a hand application. We can also apply the Optimum
glass coating if you would like free of charge. This will give you... 阅读全帖 |
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g*****u
发帖数: 14294 | 18 强弱是相对的。
我是从本月17号的RIMM季度报告相关新闻看到的。
我找到出处再贴出。
续：找了半天，没有找到RIM在consumer market的数量。或许我看错了。
BTW, RIM上季度new add是4.4mil, insalled base已经到了36mil. |
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r*******y
发帖数: 1081 | 19 比如 sudo apt-get install mplayer
sudo apt-get install apache2
都找不到软件包，是ubuntu的服务器出问题了吗？ |
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N****w
发帖数: 21578 | 20 first
sudo apt-get update |
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g****e
发帖数: 1829 | 21 如果这还不行，你就把该选的repository选上 |
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r*******y
发帖数: 1081 | 22 you are right.
Now it is ok.
thanks. |
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gw
发帖数: 2175 | 23 提示是要把 库文件改名结果 permission denied.其实是根本没有那个要改名的文件
比如 mv hdf5.so.8.0.0.1 hdf5.so.8.0.0.1U
看了其中一些debug 信息，似乎有说 relink before install 不理解 |
|
gw
发帖数: 2175 | 24 不是make install centos 6.9
是装其他软件，比如hdf5, graphviz |
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w*******t
发帖数: 90 | 25 在大电脑上, XP, PROFESSIONAL,英文操作系统,就可以安装,但是在笔记本上, XP,HOME
EDITION,英文操作系统,就怎么都不能安装. 错误信息是"Error insalling ikernel.
exe:0x10000".
网上查了解决方案, 从装了ENGINE,但还是不行, 有人知道如何解决这问题么?
谢谢. |
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e***c
发帖数: 68 | 26 If there is dial tone, that means the connection lines
are OK. So may be
you need to reinstall you mordem driver, I suppose.
First, in control panel, device manger, delete
the old modem driver ( before you should have
your modem driver, you can download from
web site of yor PC manufacture site or the disks
together with the PC when u bought it.
Then either install that with the insallation disk
if you driver disk for modem has the application.
Or restart computer, and the PC will detect new hard |
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N******8
发帖数: 7 | 27 当我看到insallment sales的时候， 就觉的没戏了。 |
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d*******1
发帖数: 293 | 28 If there is no condition, it should be 4.
Why it is 4 since there is a condition: if inemp and insal; |
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s******r
发帖数: 1524 | 29 set work.people(in=inemp) work.money(in=insal);
by XXXXXX;
baozi
money |
|
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t********u
发帖数: 1998 | 31 pg&e准备给我一个free的房顶的隔热insallation，省回几千刀，还有每个月的20%cut
in energy bill. 这个帮我弄paper的人是个中国人，收入高的家庭他可以帮人adjust.
除非是高的离谱的，还有老房子比较容易申请。 有兴趣的朋友可以给我发个信要他的
电话。人家每做完一个case都可以向pg&e claim commission. 原来还真的有free
lunch这回事。 |
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