len : optional. Set the length of string variablesuniformly. the defaultis 12000; *** *** MODIFICATIONS: *** Programmer *** Date: *** Reason: *** ***/ /*%let len=12000;*/ /*%let dataset=ae2_;*/ %macro ms_char_set_len(dataset=%str(td1), len=%str(12000)); /*create ...
nvar:Number of Variables 说到这儿,还没有说到数据字典...比如:我们要获取某逻辑库下的所有数据集名称,实际应用场景:数据集循环,进行一致的操作等,先来看看一段代码... 代码语言:javascript 代码运行次数:0 运行 AI代码解释 %macro dsloop;proc sql noprint;selectcount(*)into:_loop from dictionary.tables ...
One task is to change raw data into standard SDTM variable, such as if CPEVENT=”Treatment and Observation Period (Day1)” then VISIT=“Day 1”, or if CPEVENT=”Day 1” then VISITNUM=2001. Another commom task is value conversion between stan...
***Get number of non-missing records for all variables; proc sql noprint; create table result1 as select "CLASS" as Dataset length=50, "NAME" as Var length=50, sum(not missing(NAME)) as Sum from class outer union corr select "CLASS" as Dataset length=50, "SEX" as Var length=50...
问在SAS中连接观察中的所有变量EN哈希表即散列表（Hash table），是根据关键码值(Key value)而直接进行...
(2)TheKEEPstatement specifies variables that are to be included in anydata setthat is being created. 5. 如果 retain语句 后面不跟任何变量,则: 会将所有由input和 赋值语句“=”创建的变量 都会retain其值,在data步的迭代中。 6. 默认情况下,如果不使用 RETAIN 语句, SAS会自动将由 input 和 赋值语句...
2:select 、if else if的选择 Fornumeric variables,SELECT statementsshouldalways be slightlymoreefficient (use less CPU time) than IF-THEN/ELSE statements. The performance gap between IF-THEN/ELSE and SELECT statements gradually widens as the number of conditions increases ...
Transform Variables Assess Model Performance Assess Nodes: Overview Compare Models (7:36) Score New Data (13:12) Integrate with Python & R Integrating R Code into SAS Enterprise Miner (7:18) Integrating Python Code into SAS Enterprise Miner (6:20) ...
data dates; end_date = '30JUN2021'd; start_date = intnx('year', end_date, -1, 'B'); do date = start_date to end_date; i = date-start_date+1; output; /* Dynamically create new macro variables named var1, var2, etc. */ call symputx(cats('var', i), put(date, ddmmyys10...
The STDIZE procedure with the REPONLY option can be used to replace missing values. The METHOD= option allows you to choose several different location measures such as the mean, median, and midrange. The output data set created by the OUT= option contains all the variables in the input data...