sas base

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

I. Basic Nature of ODS ODS output format: listing (default standard SAS output), HTML, RTF, prtnter, PS, PCL, PDF, output (SAS output date-set), markup, and document; ODS contains the table template (specified output structure) and style template (specified appearance structure): first, the table template function generates data from procedure to form the output project, then, the style template is used

1 Data _ NULL; /* _ Null _ makes it unnecessary for the system to generate a new dataset to save memory. */ 2 Infile ' C: \ myrawdata \ candy. dat ' ; 3 Input name $ 1 - 11 Class @ 15 Datereturned mmddyy10. candytype $ quantity; 4 Profit = Quantity * 1.25 ; 5 6 /* Focus: output reports using file and put */ 7 File ' C: \ myrawdata \ student.txt ' Print;/* The file statement specifies the output path of the reprot. The print option tells

1 Proc Sort data = Data - Set 2 Out = Neat 3 Nodupkey 4 Dupout = Extraobs; 5 By Variable - 1 Variable - 2 ... Variable - N; 6 Run; Note: If out = is not specified, the sorted data is automatically replaced by the original dataset. the nodupkey option command SAS deletes repeated observations of variables in the by statement. dupout = option command SAS puts the de

to customize the sheet name. By default, the sheet name is the same as that of the SAS dataset. note: sheet-name cannot end with $ */run. [file suffixes of various PCs and corresponding DBMS identifier] type of file suffix DBMS identifier Microsoft Excel :. XLS ------------- Excel (32-bit windows) ----------- XLS (Unix or 64-bit windows) DBASE. DBF ------------ dbf jmp. JMP ------------ JMP Lotus. wk4 ------------ wk4 paradox. DB ------------ paradox

Proc report includes the print, means, tabulate, sort process, and data step functions: I. Basic Syntax: 1 Data natparks; 2 infile 'C: \ myrawdata \ parks. dat '; 3 input name $1-21 type $ region $ museums camping; 4 run; 5 6/* ----- group and analyze SS variables (group: vertical; horizontal SS: horizontal) --- */7 * region as group and type as variant SS variable with sums; 8 proc report data = natparks nowindows headline; 9 column region type N, (museums camping), mean; 10/* add statistics to

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

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. S

Path to mathematics-sas memo (10), path to mathematics-sas memo Merge combines two or more data sets. Libname saslib "k: \ sas "; DataSaslib. goodsprice; Input id name $ price6.2; Datalines; 1 mouse 35.6 2 Keyboard 28.95 3 mouse pad 8.2 4 headsets 29.7 ; DataSaslib. goodsquantity; Input id quantity; Datalines; 1 150 2 98 4 162 3 45 ; Proc sortData = saslib. goods

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

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; All content of this blog is original, if reproduced please indicate the source http://blog.csdn.net/myhaspl

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

Path to mathematics-sas memo (18), path to sas memo 18Data _ null _;X = 15.63;Y = 15.13;Xx = ceil (x );Yy = ceil (y );Put xx = yy =;Xx = floor (x );Yy = floor (y );Put xx = yy =;Xx = int (x );Yy = int (y );Put xx = yy =;Xx = round (x, 0.1 );Yy = round (y, 0.1 );Put xx = yy =;Z = trunc (1/3, 3); * stores data in 3 bytes;Put z =;All content of this blog is original, if reproduced please indicate the source ht

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

General format: 1 Proc freq;2 Tables variable_combinations/options;3/*Variable_combinations4If it is a single variable: Table variable-Name;5If multiple variables exist: Table variable-name-1 variable-name-2...;6If it is a cross variable: tables

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

The general form of Proc tabulate: (the subject is different from the freq process. Here is the table statement, not tables) 1 proc tabulate format = options;/* format = option to change the format of all cells in the table */2 var analysis-variable-