下面给出比较合理科学的处理方法。注意到这里只有非空才参与计算,not missing函数以及cmiss函数,还有缩进的应用。 在进行字符型变量和数值型变量的计算也好,转换也好,一定要使用INPUT函数和PUT函数,并辅之best.等各种匹配格式,strip等函数去空格,否则,很容易出错,遗漏,得...
比较运算符(lt le eq ge gt ne < <= = >= > ^=) 逻辑运算符(not and or ^ & |) 子集运算符(IS IN BETWEEN LIKE CONTAINS EXISTS) 其他运算符(() ||) 操作数可以单独使用作为查询结果,但操作符必须与至少一个操作数同时使用才有...
使用95系列RAID执行storcli /cx set jbod=on/off命令时,打印“Controller does not support JBOD”信息。 图12‑16 Controller does not support JBOD告警 95系列RAID卡由于固件实现机制改变,不再支持单独设置JBOD状态为Enable或Disable,可通过storcli /cx/ex/sx set jbod指令...
data outdata;setindata;/**Imputation of AESTDTC**;*/iflength(strip(AESTDTC))>=10then ASTDT=input(AESTDTC,yymmdd10.);ifnotmissing(ASTDT)then ASTDT_IMP=ASTDT;elseifmissing(ASTDT)andnotmissing(AESTDTC)then do;iflength(AESTDTC)=7then do;/**Impute Day**;*/ASTDT_IMP=input(strip(AEST...
The YYQ function returns a SAS date value that corresponds to the first day of the specified quarter. If eitheryearorquarteris missing, or if the quarter value is not valid, the result is missing. Syntax : YYQ(year,quarter) 三、日期提取 ...
WARNING: Function 'ftoc' was defined in a previous package. Function 'ftoc' as defined in the current program will be used as default when the package is not specified. 1284 return(cats((f-32)*5/9,'C')); 1285 endsub; 1286
are not automatically applied. 2、 缺失值的填充: 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= ...
2.When any type of join is processed, PROC SQL starts by generating a Cartesian product, which contains all possible combinations of rows from all tables.In all types of joins, PROC SQL generates a Cartesian product first, and then eliminates rows that do not meet any subsetting criteria tha...
the variables defined as theKEYandDATAcomponents of the hash objectare not automatically recognizedby the DATA step as are those in a dataset declared in a SET statement. 举例,如果不使用 length 进行声明 ,则报错: 这里如果不使用length语句,程序就会报错。
at the data observation which denoted as last value and referred as the lag1_value. In the second order will denote as lag2_value of the data observations, lag function which helps to return the value of the character variable that has not been assigned to the length used in the ...