学生考试分数recode:
PROC FORMAT
VALUE SCOREFMT 0-64 = 'Fail'
65-69 = 'Low Pass'
70-79 = 'Pass'
80-89 = 'High Pass'
90-HIGH = 'Honors';
RUN;

PROC FREQ DATA = GRADES;
TITLE 'Example 3';
TABLE SCORE;
FORMAT SCORE SCOREFMT.;
RUN;
书上说If the scores were not integers, you could rewrite the PROC FORMAT
statements like this:
PROC FORMAT
VALUE SCOREFMT 0-<65 = 'Fail';
65-<70 = 'Low Pass'
70-<80 = 'Pass'
80-<90 = 'High Pass'
90-HIGH = 'Honors';
RUN;
我的第一个问题是: 如果scores不是整数,是不是说以下的这段code就可以省略了?
PROC FREQ DATA = GRADES;
TITLE 'Example 3';
TABLE SCORE;
FORMAT SCORE SCOREFMT.;
RUN;
我的第二个问题是为什么"FORMAT SCORE SCOREFMT."里"SCOREFMT."要加一个"."呢?
谢谢!