From:http://blog.chinaunix.net/uid-675476-id-2076827.html
In SAS macros, strings are enclosed in double quotation marks, but if a string contains special characters such as double quotes or a percent semicolon, a single quotation mark is used to escape the special characters in the string. Like what:%let test = ' A ' is the first character! ';
However, if the string contains single quotes, the above method is invalidated. So more generally,
Tags: style blog http color ar using SP for strongWhat is a view?A view is a series of query statements that are executed when used to obtain the desired subset (subset) or superset (superset) from other datasets or views.The view contains only the logic for accessing the data and not the data itselfWhere can the view be used?Almost anywhere in the SAS program where the real table is used (not available in the list).What are the benefits of using view
SQL procedures in SAS can organize data, data merging, and data selection functions.SQL procedures can stitch two datasets, create tables, delete rows and columns in a table, and simply calculate individual variable values.For example:Proc SQL;CREATE VIEW Work.body AS//select the variable id,de,age,sex from the ad table and add a variable height and a new table bodySelect id, DE, age,sex,id**2\age as height//From Work.ad//You can also merge two tables
Winlogon.exe Application error is our computer in the process of using a relatively no solution error, many people say that the problem is basically only to reload, and I am here to share, my own solution. Since it's your own solution and don't know what your situation is, you can try it a little. This is better than your direct reload system.
1
Description of the specific description of the Winlogon.exe application error
Pop-up 0x10065cb0 This memory cannot be read. "Regardless of whether th
Now when you install Windows Server 2003 for your server, or when you install XP for a workstation that uses SATA raid, you need to load the associated driver from the floppy drive, but many machines do not have a floppy drive. For a server, you can install it using the boot CD from the server, but the first logical disk for the disk display will be partitioned when installed.
In the past, most of the drivers for SCSI cards, RAID cards, SATA, or SAS
In a variety of test mix scenarios, the combination of 10 (combination 10:SSD * 2, RAID 0, Xfs,wb,nobarrier,noop) has the highest overall performance, so it is the benchmark, and the comparison of other schemes, the following table is the comparison of the combinations and combinations 10:650) this.width=650; "Src=" http://dp.imysql.com:8080/files/upload_yejr_imysql/SAS_VS_SSD_MySQL_OLTP%E5%AF%B9%E6% Af%94%e6%b5%8b%e8%af%95%e8%a1%a8-20120907.png "style=" border:0px; "alt=" sas_vs_ssd_mysql_oltp%
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
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I. Count FunctionsIn actual statistical applications, the number of occurrences of observed values needs to be calculated. This function can be implemented through the count function. It has three forms and functions:
Form you used
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-
Contents process (view dataset attributes)
1 ProcContents data=Data-Set;2Run;
Label
1 /* there are two types of labels, but cannot exceed 256 characters */ 2 label = data - set (define a label for the dataset)
NraidNraid is non-raid. The capacity of all disks is combined into a logical disk without data block entries (no block stripping ). Nraid does not provide data redundancy. At least one disk is required.JbodJbod stands for just a bunch of drives. The
Proc Printto log= "./xx1.txt" new;
Data temp;
Input a b C;
Cards
A 1 8
A 2 7
A 3 8
A 4 9
;
Run
Proc Printto log= "./xx2.txt" new;
Data temp1;
Set temp;
f= lag (c);
D= dif (c);
Run
The lag (Var) function is to move the variable in
/* Way One */
%let x=5; %let y=test; %put &x &y;
/* Mode two */
Data _null_; Call Symput (' x ', 5);
Call Symput (' y ', ' test ');
Run %put &x &y;
/* Mode three */* if there are multiple records, only the value of the first bar */
Proc SQL Noprint;
1: Macro definition in program runCall Routines -enable you-transfer information between an executing DATA step and the Macro Proces Sor.You can use the symput routine to create a macro variable, and to assign to, variable any value, is Availa ble
First, objectives
Display all rows, eliminate duplicate rows, and limit the number of rows displayed
subset rows using other conditional operators and caculated values
Enhance the formatting of query output
Using summary
SAS9.3 64bit version Installation GuideWith a new computer, after installing the original SAS9.2 , the enhanced editor has been unable to load, tried various methods and wasted the day. Helpless download SAS9.3 version, but the installation is not smooth, of course , the main problem is the JDK , referring to the Netizen's article, successfully completed the installation, another note operating system for Win7 version. Original address:http://f.dataguru.cn/thread-161588-1-1.html1, the main proc
Implementation of heat map in Openlayers
Overview:
This article describes how to implement heat map in Openlayers with heatmap. js.
Heatmap. js introduction:
Heatmap is used to display statistical measurements within a certain area. The most common website access heat map is to display the visitor's favorite page area and geographical area in a special highlighte
of the hard drive transmission speed are:Ultra-ata33Ultra-ata66ultra-ata100 [ultra-ata133SATA hard Drive transfer speeds are:ultra-ata150the difference between a SCSI interface and a SAS interfaceSAS (serial Attached SCSI), serial attached SCSI, is the next generation of SCSI technology, and is the same as the current serial ATA (SATA) hard drive, using serial technology to achieve higher transmission speed and improve internal space by shortening th
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