SAS Program has three types of errors:
Programing logic errors (how to identify and resolve );
Syntax errors (how to recogize ANC correct );
Data errors (how to examine and resolve.
How to write an efficient SAS Program:
Write code that is easy to read as much as possible (one line per sentence, indented layout, and comments more)
Test any part of the program
Test Program with a small dataset (for
Disk media in the storage area is the most critical device, and all data and information is stored on disk media. The reading speed of the data is determined by the connection interface of the disk media. We used to do data storage through SCSI or SATA interfaces and hard drives. But in recent years a new technology has increasingly been favored by small and medium-sized enterprises and even large enterprises. Is the SAS technology and its correspondi
Recently learning to use node's Express framework to build a Web site that involves view rendering. This can be aided by the template engine Ejs or jade (the template engine has many, the most used, the more perfect is Ejs and Jade).Is it better to choose which template engine? Online also have a lot of argument, I also surf the internet to see a bit, basically is "one-sided", but finally I still can not dr
Opening remarks:
I personally think that the entire SAS protocol family is large, and there are many concepts that are hard to understand. I can only study the actual code at work while reading the protocol in detail. In this way, we can better understand the SAS protocol.
It is the best way to understand the protocol according to the code. Think about all the protocols for data transmission. The communicat
Learn the front-end template engine jade (1), front-end jade1. Why Learning jade? 2. Start jade installation.
3. Start Using jade to build a front-end template.
2. We can write the jade template code in the jade file, which is
Path to mathematics-sas memo (14), path to sas memo 14
Sas Date Format
Data _ null _;X = '7jan2012 'd;
Put x yymm7 .;
Put x yymmc7 .;
Put x yymmd7 .;
Put x yymmn6 .;
Put x yymmp 7 .;
Put x yymms7 .;
Put x yymon7 .;
Put x mmddyy10 .;
Put x yymmdd10 .;
Run;
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Path to mathematics-sas memo (17), path to mathematics-sas memo 17SAS Date and Time FormatData _ null _;Input mydate YYMMDD10 .;Put mydate YYMMDDB10 .;Put mydate YYMMDDC10 .;Put mydate YYMMDDD10 .;Put mydate YYMMDDN8 .;Put mydate YYMMDDP10 .;Put mydate YYMMDDS10 .;Cards;2014-05-;Run;All content of this blog is original, if reproduced please indicate the source http://blog.csdn.net/myhaspl/2014 05 182014-05-
recently re-spread on the database, the company's core database every day IO full, in the study with SAS 16*RAID10, or RAID10 ssd*6, or FIO;the principle, no raid-5 for database; eh; the root of all evil ;No.2 principle, most of the time, the database does not need too high CPU, now 2 sockets are basically enough, more MySQL is not used;No.3 principle, large memory, high IO, is the necessary condition of modern web-based database;now the big companies
In practical applications, we often convert wide data (one patient observation) into long data (one patient observation) or long data (one patient multiple observations) into wide data (one observation for a patient), and in R we can use the Reshape2 package. There are two implementations of the SAS: arrays and transpose. This blog post first explains the use of arrays to reconstruct SAS data, and the next
Path to mathematics-sas memo (13), path to sas memo 13Libname sastemp 'e:/sastemp /';Option user = sastemp; * specifies the reference name of the next logical database;Page; * The log starts from a new page;Data sales;Input id $ price;Skip 6; * Five blank lines are generated in the log;Cards;1 23.32 99.233 91.01;Proc print;Run;X 'dir. '; * execute the operating system command; all content in this blog is or
Path to mathematics-sas memo (9), path to mathematics-sas memo
View
Libname saslib "k: \ sas ";
DataSaslib. testview4/view = saslib. testview4;
Set saslib. test4;
Run;
Proc printData = saslib. test4 noobs label;
Run;
Proc SQL;
Select testview4.id as student ID, testview4.score as score fromsaslib. testview4;
Quit;All content of this blog is original, if reproduc
Node + express + jade simple website guide, jade website Guide
1. Create a project folder: my_jade
2. Download the express and jade packages to the local device. I personally do not like to download them to a global one. I like to download them to the project folder.
3. Create related folders and files.
Index. js:
Style.css
Gys.
Path to mathematics-sas memo (6), path to mathematics-sas memo
Connect external data
Connect to database type options
All content of this blog is original, if reproduced please indicate the source http://blog.csdn.net/myhaspl/
Connection ACCESS:
Proc SQL;
Connect to access as db (path = "e: \ xx. mdb ");
Connect to excel:
Proc SQL;
Connect to EXCEL (PATH = "k: \ student_excel.xlsx" GETNAMES = YES
Sas memo (1), sas memo
Simple dataset output
Logs
85 libname saslib base 'e: \ sasdata ';
NOTE: The logical Library Reference name "SASLIB" has been successfully allocated, as shown below:
Engine: BASE
Physical name: E: \ sasdata
86
87 data saslib. Student;
88 input name $ Age Score;
89 datalines;
NOTE: The SASLIB. STUDENT dataset has three observations and three variables.
NOTE: time used by the "DATA st
pop-up window. The larger the number, the greater the smoothness.
7, choose "Paint bucket tool", filled into black.
Select the elliptical marquee tool to draw a circle centered on the center point of the graphic. Press the DEL key to select Delete. So the gears are ready to be made.
Using filters
1, choose "Filter" → "natural" → "Water droplets".
In the pop-up window, for example, select "Full coverage, smoky." You can view different
Figure 1 Figure 2 Figure 3
Mei jingfeng, Gansu Province
I have the honor to get to know QiJia Culture jade and have a strong preference for QiJia Culture jade, not only because it is located in the origin region of QiJia Culture, what's more important is that the beauty exclusive to QiJia Culture Jade has deeply attracted me.
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Programmers often ask which language can access SAS, that is, using SAS's it mechanism, which allows development customers to access SAS, programmers can quickly build strong applications with SAS in different languages, this article mainly introduces how to use VB to interact with SAS
Need
SAS (Serial Attached SCSI) is a new generation of SCSI technology, which is the same as the popular Serial ATA (SATA) hard drive. It uses Serial technology to achieve higher transmission speeds, and improve the internal space by shortening the connection line. SAS is a new interface developed after the parallel SCSI interface. This interface is designed to improve the efficiency, availability, and scalabili
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