中间的说明,SAS went to a new line when INPUT statement reached past the end ofa line.是指读取第二个值时达到第一行末尾,并转到下一行继续读取。 输出结果如下: 2.13 读取原始数据的部分观测值 有时候只需要读取原始数据的部分观测值,比如只需要年鉴中的女性数据、收入超过10万的人口数据等。 此时的数据读...
/*INPUT statement causes SAS to read the first record of raw data into the input buffer. Then, according to the instructions in the INPUT statement, SAS reads the data values in the input buffer and assigns them to variables in the program data vector*/ /*将记录读入缓冲流,从缓冲流中读出...
中间的说明,SAS went to a new line when INPUT statement reached past the end ofa line.是指读取第二个值时达到第一行末尾,并转到下一行继续读取。 输出结果如下: 2.13 读取部分观测值 有时候只需要读取原始数据的部分观测值,比如只需要年鉴中的女性数据、收入超过10万的人口数据等。 此时的数据读取方式如下...
If you specify no argument, the REMOVE statement deletes the current observation fromall data setsthat are named in the DATA statement. remove和delete和if子句都能起到获取部分数据集的效果,但是delete和if都perform only on physical但是remove既可以logical也可以physical,对于不同的引擎。
This line-hold specifier is like a stop sign telling SAS, “Stop, hold that line of raw data.” SAS will hold that line of data, continuing to read observations until it either runs out of data or reaches an INPUT statement that does not end with a double trailing @. 原始数据 一行有...
Then the formats are used in the PUT statement to derive VISITNUM and PCTPTNUM. The purpose of adding “+0” is to convert VISITNUM data type to numeric form. It is automatic converted in the SAS. Though it maybe does not produce “Warning“...
2930!409917+3350+474922!2640!379920+3250+481615+4080!7827By using delimiter='!+' on the infile statement, SAS will recognize 34、both of these as valid delimiters.DATA cars;INFILE 'readdel2.txt' DELIMITER='!+' ;INPUT mpg weight price;RUN;PROC PRINT DATA=cars;RUN;As you can see in ...
Easily indicate where and how a model will use input data. Data/model separation is maintained, which is critical when reusing models or model components. You can select which aspects of the solution get reported and can control the form in which they are reported. ...
例如 DATA a; 就是一个DATA Statement。DATA就是一个sas关键字，a就是一个sas名称。又比如 length x...
DATA WITH_1; RETAIN X; PUT "Before the INPUT statement: " _ALL_; INPUT X @@; PUT "After the INPUT statement: " _ALL_ /; DATALINES; 1 2 . 3 ; 使用retain 不使用RETAIN,INPUT在每次循环执行时会把变量值清空,即置为(.)。 使用RETIAN,INPUT在每次循环执行时保留上一次的变量值。