%create_macro_variable(my_variable, "Hello, World!"); 使用宏变量:在程序的其他部分使用宏变量时,可以使用&符号引用它们的值。例如,下面的代码使用了上述创建的宏变量: 代码语言:txt 复制 data mydata; set mydataset; new_variable = "&my_variable"; run; 在上述代码中,宏变量
⑤LENGHT=variable定义一个变量, 其值是当前输入数据行的长度。 ⑥OBS=n指定从一个顺序输入文件中读取数据的最后一个观测(即第1～第n个观测)。 3.INPUT语句(输入语句) 描述一个输入记录中数值的安排情竣给相应的SAS变量赋输入值,该语句只能用于读入存放于外部文件中的数据或...
* Create a data set, both, combining northent and southent; * Create a variable, AmountPaid, based on value of variable Age; DATA both; SET southent northent; IF Age = . THEN AmountPaid = .; ELSE IF Age < 3 THEN AmountPaid = 0; ELSE IF Age < 65 THEN AmountPaid = 35; ELSE...
Create or modify variables You can use the transforms argument to rxImport to create new variables or modify existing variables when you initially read the data into .xdf format. For example, we could create a new variable, logcost, by taking the log of the existing cost variable as follows...
id_variable2 = y.id_variable2 QUIT; Macro(宏语言)示例 %MACRO macro1(yymm); PROC SQL; SELECT id date FROM libname1.dataset_&yymm._new QUIT; %MEND; %macro1(2402); 创建新table并提取data的前100行 PROC SQL OUTOBS=100; CREATE TABLE table1 AS SELECT * FROM dataset; QUIT; 删除数据前...
Create aninstanceof (instantiate) the hash object.创建一个实例 Initialize lookupkeysanddata.初始化 key 和 变量。 3. 建成SAS Hash 对象后 可以进行的操作: Store and retrieve data.存储和检索数据 Maintain key summaries.维护key Replace and remove data.替换或移除数据 ...
options yearcutoff=1920;datafixdates(drop=start readdate);length jobdesc $12readdate $8;input source id lname $ jobdesc $ start $;ifsource=1then readdate='date7.';elsereaddate='mmddyy8.';//inputn表示指定一个numeric variable,具体的Informat由readate决定,为'mmddyy8'. newdate = inputn(...
Create a New Project Define a Data Source Create a Process Flow Diagram Explore Data Explore Nodes: Overview Explore Input Data and Replace Missing Values (10:20) Select Variable Clusters (14:19) Model Data Model Nodes: Overview Build a Decision Tree (13:46) Build a Regression Model & ...
name name string Name of the variable. value value The value of the variable. Returns This type describes the output values that are returned when a step is executed. Step Output stepOutput Triggers Expand table When a pre-defined event happened Creates a new webhook for pre-defined call...
Figure 5: Integrate customized SAS code to create variable transformations, incorporate SAS procedures, develop new nodes, augment scoring logic, tailor reports and more. Decision trees • Methodologies: • CHAID, classification and regression trees, bagging and boosting, gradient boosting, and boot...