proc sql;selectcats(libname,'.',memname)into:names separated by''fromdictionary.tableswherelibname="OUT"andmemnamein('DS_1','DS_32');quit;/*如果选择 memname not in ('DS_1' 'DS_32'), 则除此之外的所有的数据会被保留下来*/ datawant;set&names;run; %put&names; OUT.DS_1 OUT.DS_3...
数据索引的创建有三种方式:data步骤、sql步骤、datasets步骤。其中还是有点困惑在data与datasets的区别之上,datasets是对逻辑库中数据集进行操作的方式,而data之后是代表程序的开始。 1、data方式创建索引 代码语言:javascript 代码运行次数:0 运行 AI代码解释
一个字节8位,仅支持2的8次方=256个码点。 双字节字符集DBCS(Doule-Byte Character Set)指该字符中的字符最多由2个字节表示。 多字节字符集MBCS(Multiple-Byte Character Set)是指该字符集中的字符以多个字节来表示。如UTF-8. 3. 指定系统选项的LOCALE= 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
DATA rhc; set casedata.rhc; RUN; /*%let 定义协变量;分类、连续变量;本例精简变量*/ /*PROC format; value death 1 = "Yes" 0= "No";run;*/ %let cat_var =sex_01 race_123 income_1234 cat1_123456789 dnr1_01 ca_012 resp_01 card_01 neuro_01 gastr_01 renal_01 meta_01 hema_01 ...
Data and time that data set was created / last modified Name of the datasets Other factors Descriptor portion for variables contain attributes such as name, type, length, format, label and other. Data Portion: It’s a collection of data value. Arranged in the form of table. ...
SAS数据集操作：基础概念与实践说明书
SET with POINT= option with STOP statement Direct access by record number Temporary, effective SAS Indexes Direct access by key variable value for more effective ascending sorting/merging and subsetting Permanent, up to 50% faster with PROC SORT if merging datasets, up to 100% slower witho...
Each invocation of the KEPILGPM procedure resets the 16 SAS data sets. If either the EXTRACT or the COMPEXT command(s) in the procedure does not write any data to a particular data set, then that data set contains no records after the procedure is executed.Parent...
%letadate=%sysfunc(today(),nldate.);procdatasets library=saslib nolist; modify order_summay; labelQountry= %sysfunc(sasmsg(&ds,Country_Label,noquote)); labelQuantity= %sysfunc(sasmsg(&ds,Quantity_Label,noquote)); labelPrice= %sysfunc(sasmsg(&ds,Price_Label,noquote));run;title%sysfunc(...
All data set options, formats, informats, functions, and system options that relate to national language support are documented in the new SAS National Language Support (NLS): User's Guide. A new ODS statement enables you to render multiple ODS output formats without re-running a PROC or a...