SAS Base备考
备考准备
考试基本信息(其他博主)
考试题目:62个。正确率超过70%算通过。
考试时间:1小时40分钟(半小时就可以做完)。
题目来源:70题(~75%)+机经(常见机经都考到了,~20%)+123题(~5%)。
复习过程(约20小时):
看70题(2小时)- 做50题(5小时)- 做70题(5小时)-做123题(8小时)
考试当天抱佛脚(约3-4小时):
闭卷一口气做完70题(错5个,做题加纠错约1-2小时)-看机经(1-2小时)
70题仍然是王道,大部分题都还是从70题里面出的,建议在Crackman网站上看70题,有解释和讨论;
填空题 ,我遇到2道填空,是从选择题变成填空的;
书籍
- The Little SAS book <4th ed.> 第一章到第六章.
- SAS Certification Prep Guide-Base Programming for SAS9
做题
- 70题,结合<70题答案解析Crackman版>,
- 123题,
- 50题.
- 95题
过来人的分享
- https://bbs.pinggu.org/forum.php?mod=viewthread&tid=4747624&from
- https://bbs.pinggu.org/thread-6353154-1-1.html
- https://www.1point3acres.com/bbs/thread-312405-1-1.html
- https://www.1point3acres.com/bbs/thread-218894-1-1.html
- https://bbs.pinggu.org/thread-4172814-1-1.html
机经
给了code,其中有一句是label test='testinglocationtemperature)。
问怎么wrap?
选择 split = ‘*’;dataset TEST 有两个变量(VAR1, VAR2)
data test2;
set test;
input var1 $ var2;
total=total+var2;
run;
问output是什么? 因为没有给total赋值,所以total为missing value。
输出结果为 var1 var2 total
a 1 .
b 3 .
c 5 .
-> 选择最左边那行都为 missing value的!!Cutoffyear=1970;
data TWO;
X = '01Jan1960’d;
YearA = year(X)
问yearA是多少 -> 选2060
Solution: 因为 year(X) 读取的年份,必须晚于 Cutoffyear=1970。所以 '01Jan1960’d 读取 ‘1960’, year()函数识别出的 不可能是 1960(earlier than 1970),而是 2060(later than 1970)
原题
95题的93题
- This question will ask you to provide a line of missing code. Given the following data set WORK.SALES:
SalesID SalesJan FebSales MarchAmt
W6790 50 400 350
W7693 25 100 125
W1387 . 300 250
The following SAS program is submitted:
data WORK.QTR1;
set WORK.SALES;
array month{3} SalesJan FebSales MarchAmt;run;
Which statement should be inserted to produce the following output?
SalesID SalesJan FebSales MarchAmt Qtr1
W6790 50 400 350 800
W7693 25 100 125 250
W1387 . 300 250 550
A.Qtr1 = sum(of month{ALL});B.Qtr1 = month{1} + month{2} + month{3};
C.Qtr1 = sum(of month{*});
D.Qtr1 = sum(of month{3});
data b;
input salesid $ SalesJan FebSales MarchAmt;
cards;
W6790 50 400 350
W7693 25 100 125
W1387 . 300 250
;
run;
data c;
set b;
array month{3} SalesJan FebSales MarchAmt;
Qtr1=sum(of month{*});
run;proc print data=c;title'95题的第93题';run;
123题的93题解释
because after reading following statement
input employee_name $ 1-4;
SAS advances to next line of raw data file and next input statement
if employee_name = ‘Sue’ then input age 7-8;
reads age for John as age of SUE which is 40.
70题的17题
17.Given the following data step:
data WORK.GEO;
infile datalines;
input City $20.;
if City=‘Tulsa’ then
State=‘OK’;
Region=‘Central’;
if City=‘Los Angeles’ then
State=‘CA’;
Region=‘Western’;
datalines;
Tulsa
Los Angeles
Bangor
;
run;
After data step execution, what will data set WORK.GEO contain?
A.
City State Region
Tulsa OK Western
Los Angeles CA Western
Bangor Western
B.
City State Region
Tulsa OK Western
Los Angeles CA Western
Bangor
变形题
70题的18题
18.Which statement describes a characteristic of the SAS automatic variable ERROR?
A. The ERROR variable maintains a count of the number of data errors in a DATA step.
B. The ERROR variable is added to the program data vector and becomes part of the data set being created.
C. The ERROR variable can be used in expressions in the DATA step.
D. The ERROR variable contains the number of the observation that caused the data error.
Answer: C
(变形) 选ONLY CAN BE IN EXPRESION IN THE DATA STEP.
70题的27题
原来的题目及要求
27.Given the SAS data set WORK.TEMPS:
Day Month Temp
1 May 75
15 May 70
15 June 80
3 June 76
2 July 85
14 July 89
The following program is submitted:
proc sort data=WORK.TEMPS;
by descending Month Day;
run;
proc print data=WORK.TEMPS;
run;
Which output is correct?
A.
Obs Day Month Temp
1 2 July 85
2 14 July 89
3 3 June 76
4 15 June 80
5 1 May 75
6 15 May 7
B.
Obs Day Month Temp
1 1 May 75
2 2 July 85
3 3 June 76
4 14 July 89
5 15 May 70
6 15 June 80
C.
Obs Day Month Temp
1 1 May 75
2 15 May 70
3 3 June 76
4 15 June 80
5 2 July 85
6 14 July 89
D.
Obs Day Month Temp
1 15 May 70
2 1 May 75
3 15 June 80
4 3 June 76
5 14 July 89
6 2 July 85
Answer: C
变形之后的问题:by day descending Month
Answer:B
70题的24题
28.Given the SAS data set WORK.P2000:
Location Pop2000
Alaska 626931
Delaware 783595
Vermont 608826
Wyoming 493782
and the SAS data set WORK.P2008:
State Pop2008
Alaska 686293
Delaware 873092
Wyoming 532668
The following output is desired:
Obs State Pop2000 Pop2008 Difference
1 Alaska 626931 686293 59362
2 Delaware 783595 873092 89497
3 Wyoming 493782 532668 38886
Which SAS program correctly combines the data?
A.
data compare;
merge WORK.P2000(in=_a Location=State)
WORK.P2008(in=_b);
by State;
if _a and _b;
Difference=Pop2008-Pop2000;
run;
B.
data compare;
merge WORK.P2000(rename=(Location=State))
WORK.P2008;
by State;
if _a and _b;
Difference=Pop2008-Pop2000;
run;
C.
data compare;
merge WORK.P2000(in=_a rename=(Location=State))
WORK.P2008(in=_b);
by State;
if _a and _b;
Difference=Pop2008-Pop2000;
run;
D.
data compare;
merge WORK.P2000(in=_a) (rename=(Location=State))
WORK.P2008(in=_b);
by State;
if _a and _b;
Difference=Pop2008-Pop2000;
run;
Answer: C
70题的35题
35.given the SAS data set SASDATA.TWO:
X Y
5 2
3 1
5 6
The following SAS program is submitted:
data SASUSER.ONE SASUSER.TWO OTHER;
set SASDATA.TWO;
if X eq 5 then output SASUSER.ONE;
if Y lt 5 then output SASUSER.TWO;
output;
run;
答案:
data set SASUSER.ONE has 5 observations
data set SASUSER.TWO has 5 observations
data set WORK.OTHER has 3 observations
解释:
开始IF判断,判断为真就是OUTPUT到SASUSER.ONE数据集中。但是这里没有交代如果为假将会怎么样。我个人认为即使是假,也不会做任何处理。因为没有在假这个条件下的执行语句。
变形:
变else output other -> 选2 2 1
70题的42题
.The following SAS program is submitted:
data WORK.ONE;
Text=‘Australia, US, Denmark’;
Pos=find(Text,‘US’,‘i’,5);
run;
What value will SAS assign to Pos?
A. 0
B. 1
C. 2
D. 12
从Australia, US, Denmark 字符串的第五个字符开始,字母i表示忽略字符串中大小写,寻找字符串US在源字符串中的起始位置,并返回起始位置的数字给POS。
变形题:(变填空) 变Text=‘US-Australia-Denmark’ -> 填5
几个问题值得思考,第一个是如果没有’i’这个参数,结果会怎么样?如果把5改成1,
data WORK.ONE;Text='Australia, US, Denmark';Pos=find(Text,'US','i',1);run;proc print data=one;title'find(Text,'US','i',1)输出结果';run;
70题的63题
62.The following SAS program is submitted:
<insert_ods_code>
proc means data=SASUSER.SHOES;
where Product in (‘Sandal’ , ‘Slipper’ , ‘Boot’);
run;
<insert_ods_code>
Which ODS statements, inserted in the two locations above, create a report stored in an html file?
C.
ods html file=‘sales.html’;
ods html close;
变report in pdf了 -> 找ods pdf file = ’ xx.pdf’; ods pdf file;
70题的43题
43.Given the SAS data set WORK.ORDERS:
WORK.ORDERS
order_id customer shipped
9341 Josh Martin 02FEB2009
9874 Rachel Lords 14MAR2009
10233 Takashi Sato 07JUL2009
The variable order_id is numeric; customer is character; and shipped is numeric, contains a SAS date value, and is shown with the DATE9. format.
A programmer would like to create a new variable, ship_note, that shows a character value with the order_id,shipped date, and customer name.
For example, given the first observation ship_note would have the value “Order 9341 shipped on 02FEB2009 to Josh Martin”.
Which of the following statement will correctly create the value and assign it to ship_note?
A. ship_note=catx(’ ',‘Order’,order_id,‘shipped on’,input(shipped,date9.),‘to’,customer);
B. ship_note=catx(’ ',‘Order’,order_id,‘shipped on’,char(shipped,date9.),‘to’,customer);
C. ship_note=catx(’ ',‘Order’,order_id,‘shipped on’,transwrd(shipped,date9.),‘to’,customer);
D. ship_note=catx(’ ',‘Order’,order_id,‘shipped on’,put(shipped,date9.),‘to’,customer);
Answer: D
变形题有两个博主给出不同的答案
变形put(shipped_date, worddate9.)
(选项变形) 选put( )短的那个 -> put(shipped_date, worddate20.)
70题的45题
关于ods csvall file有一道选择格式,ods csv file是不对的
70题的57题
57.Given the SAS data set WORK.ONE:
N BeginDate
- ---------
1 09JAN2010
2 12JAN2010
The following SAS program is submitted:
data WORK.TWO;
set WORK.ONE;
Day=<insert_code>;
format BeginDate date9.;
run;
The data set WORK.TWO is created, where Day would be 1 for Sunday, 2 for Monday, 3 for Tuesday, … :
WORK.TWO
N BeginDate Day
- --------- —
1 09JAN2010 1
2 12JAN2010 4
Which expression successfully completed the program and creates the variable Day?
A. day(BeginDate)
B. weekday(BeginDate)
C. dayofweek(BeginDate)
D. getday(BeginDate,today())
Answer: B
变形:
day不再是一周里的第几天了,day数据变成一个12一个9,选day(begindate)
70题的66题
66.The following SAS program is submitted:
data WORK.SALES;
do Year=1 to 5;
do Month=1 to 12;
X + 1;
end;
end;
run;
How many observations are written to the WORK.SALES data set?
B. 1
66题变形
(变形) 在两个end中间加了output -> 5
data WORK.SALES; do Year=1 to 5; do Month=1 to 12;X + 1;end;end;run;proc print data=sales;title'66题:两个end中间没有output输出结果';run;data WORK.SALES; do Year=1 to 5; do Month=1 to 12;X + 1;end;output;end;run;proc print data=sales;title'变形:两个end中间有output输出结果';run;
新题
题目:人口增长速率是2%,给了一个2012年到2021年每年人口的表格。
问:如何得到这样的表格
正确答案包含下面的code:
do year= 2012 to 2021;
pop=pop*1.02;
output;
end;
run:
给了code,其中有一句是label test='testinglocationtemperature)。
问怎么wrap?
选择 split = ‘*’;
找语法错误
有个题目让找错,错误是datalines后面没有分号semicolon。
自我总结
上面的信息,是我从经管之家以及各大论坛收藏的,刚好在2018.12.29去南宁学院考试,下面分享以下我个人的一些见解
看机经还是比较好用的,了解一下题型和通过是要达到的分数,我考了89%,70%以上就可以通过,也算很幸运了,因为最近在学校比较忙,所以没多复习,不过,我有一些基础,毕竟大学大二的时候有学习SAS,还有在论坛上买一些资料,新题还是有的,不过大家都是这么说,通过的话不难,多看一下70题和123题,会过的。
也是去了才知道SAS全球认证考试已经加入VUE考试中心,还以为我走错地方了,经过问那里的学生,终于确定了自己的考试地点确实在南宁学院。
考试提交结果就可以马上知道成绩的,所以很happy。
顺便给大家看一下我的成绩单
也和大家分享一些我的资料吧,这些都是用论坛币去买的,不过,我还是觉得很多人没有论坛币想得到资料很麻烦,所以这里是免费给大家
70题:链接:https://pan.baidu.com/s/1IFKIDGfEEldtYzn3xXcMaA
提取码:9ji0
70题的网友答案解析
链接:https://pan.baidu.com/s/180zM9jJTf5tbU10M1Jh1lQ
提取码:1wta
123题:链接:https://pan.baidu.com/s/1AXTD9-jaDYFua6uRtzjI6g
提取码:j4ij
123题网友的答案解析
链接:https://pan.baidu.com/s/13d9eLDC5KmqzxDK55xkaOw
提取码:9mw7
50题
链接:https://pan.baidu.com/s/13QDYoU74TOMebZ3lr8dijQ
提取码:tfc5
如果出现下载不了,可以联系我QQ:2168849535
SAS Base备考相关推荐
- SAS Base基本操作
文章目录 SAS Base 数据基本操作 filename.infile/input.libname.proc contents filename infile/input libname proc ...
- SAS BASE 9.4 跑数报空间不足提示解决办法(修改默认临时work路径)
用base跑复杂.数据量大的脚本时,会报C盘空间不足的提示,无法继续进行下去. 解决办法如下: 1.找到SAS安装路径:例我的为"D:\SAS\SASHome\SASFoundation\9 ...
- 2022 年 SAS base认证考试 记录以及Tips
之前参加的比赛有一次免费参加SAS认证的机会,所以就去参加了一次.网上有一些相应的介绍之类的但可能都比较早了,于是这次去之前也不知道是真是假,于是记录一下考试内容,然后如果现在有还要考这个认证的同学可 ...
- SAS base认证知识点汇总一(2)
2 在SAS中汇入资料 2.1 了解SAS资料 2.1.1 SAS资料表 (1)SAS数据集以二维表形式展示,分为变量和观测量,观测量为变量的值.变量包括基本属性的变量名.变量 ...
- 【SAS BASE】SCAN函数
1 [例子] 2 3 data a; 4 arg='ABC.DEF(X=Y)'; 5 word=scan(arg,3); 6 put word; 7 run;/*word:X=Y*/ 8 9 data ...
- 信贷中的SAS,一份关于它的系统性内容|含案例
我们知道在目前很多做分析的软件中,python是各位互金同学用得最多的语言,但相对银行的同学而言,目前使用上还是以SAS居多. SAS在国际上已被誉为统计分析的标准软件,无论是制药.金融.保险.市场部 ...
- SAS系统学习之初探
以前在学校接触过SAS,跟着课程学习并将SAS用于统计理论的实现,学习期间断断续续,不成系统.2013年有幸参与SAS在高校举办的首次数据分析大赛,并获得"团体十强"的荣誉,之后很 ...
- 用计算机核裂变模拟实验,SAS和蒙特卡罗模拟(1):开篇
SAS for Monte Carlo Simulations (1): Introduction 一.为什么选择SAS做蒙特卡罗模拟? 为什么要用SAS做蒙卡?首先,对我来说,我只会用SAS,而且打 ...
- sas与matlab区别,SAS与MATLAB软件应用教学大纲
SAS与MATLAB软件应用教学大纲 <SAS与MATLAB软件应用>教学大纲 一.课程简介 本课程为统计专业的选修课程,是各门专业统计课程中进行具体数据分析的必备基础.总学时数为54(含 ...
- SAS学习笔记(一)
SAS体系介绍 本课程大纲: 1.SAS安装 2.SAS界面 3.SAS的处理流程 4.SAS的模块 5.逻辑库 6.数据步与过程步举例 7.变量 1.SAS安装 SAS的安装比较麻烦,因为网上比较难 ...
最新文章
- shell中的执行流控制
- Netbeans OpenGL使用
- 终于把单点登录完整流程图画明白了!史上最完整的CAS单点登录完整图解!
- HTML之六:图像的热区连接
- SQL必知必会--基础篇(一)
- c语言编译器好玩的代码,读懂这4个函数,528行代码,你也可以实现一个C语言编译器...
- 西威变频器avo下载调试资料_步骤详解|西门子PLCS7-1200通过周期性通讯PZD通道时组态和下载...
- matlab node._matlab调用ansys
- visio绘制自定义图形(完全零基础)
- MacOS 下载JDK11 Java
- 常用的Shell脚本集合
- 正样本/反(负)样本/易区分样本/难区分样本
- 英语流利说19秋招笔试总结
- flv是什么视频格式?怎么把flv转换成mp4?
- word 要求五十行 50行
- 在移动硬盘安装 Ubuntu
- archetype-catalog.xml
- chrome浏览器导出文件提示病毒扫描失败
- 图解HTTP-思维导图
- mysql基本sql语句大全(基础用语篇)