^ =NOT EQUAL运算符。 如果两个数据值不相等,则结果为1,否则为0。(V1 ^ = V2)给出1。 <LESS THAN运算符。(V2 <=小于或等于运算符。(V2 <= 4)给出1。 >大于运算符。(V2> V1)给出1。 > =大于或等于运算符。(V2> = V1)给出0。
Equal to EQ = Not equal to NE ^= or ~= or ¬= Less than LT < Less than or equal to LE <= Greater than GT > Greater than or equal to GE >= Equal to one in a list IN 下述代码将依年龄进行分组 data conditional; length Gender $ 1 Quiz $ 2; input Age Gender Midterm Quiz F...
%let num = 1.23E+06; %let threshold = 1E+06; %if &num > &threshold %then %do; %put &num is greater than &threshold; %end; %else %do; %put &num is less than or equal to &threshold; %end; 在上面的示例中,我们创建了一个名为num的宏变量,并将其设置为1.23E+06。然后,我们创建...
<= The LESS THAN or EQUAL TO Operator. (V2 <= 4) gives 1. > The GREATER THAN Operator. (V2 > V1) gives 1. >= The GREATER THAN or EQUAL TO Operator. (V2 >= V1) gives 0. IN The IN Operator. If the value of the variable is equal to any one of the values in a given ...
庞大的函数库确实给SASor们带来了非常多的方便,但是仓库式的SAS builted in帮助太杂乱,常常让人有一种“不识庐山真面目,只缘身在此山中”的感觉。有时,需要的函数找不到,找到的函数又不合适。其实SAS很体贴地不断增加高效的函数来精简你的代码和提高编程速度,可惜很多函数,SASor们并不知晓,常常看到别人使用的...
the ampersand ( & ) and not the word "and". This works: var_a >= 1 & var_b <= 10 where this does not: var_a >= 1 and var_b <= 10 These are the operators that are different in Stata: Symbol Definition& and| or >= greater than or equal to <= less than or equal ...
10.50%48 $87,500 9.50% 360 $30,000 9.75% 360 For example, from the data set above, a and b above select observations 2 and 8 (those that have a rate of 0.095); c selects no observations; and d selects observations 4 and 7 (those that have an amount less than or equal to ...
the amount is less than or equal to $5000 the account is 101-1092 or the rate equals 0.095. A. Where amount <= 5000 and account='101-1092' or rate =0.095; B. Where (amount le 5000 and account='101-1092') or rate =0.095; ...
equality or inequality constraints of the following form: n X aij xj fÄ j D j g bi for i D 1; : : : ; m j D1 For example, suppose that in addition to the bound constraints on the decision variables, you need to guarantee that the sum x1 C x2 is less than or equal to ...
SAS—第四讲: Editing a SAS data set by Data step 第四讲：SAS Data步和SAS数据集编辑 建立SAS数据集之后，需要对数据集进行必要的编辑。如删除一些变量或观测、产生新变量等等。利用SAS的DATA步，通过编程可以灵活的对SAS数据集进行编辑。§4.1 SAS编程基础 1、SAS程序 SAS语句：由SAS关键词、SAS名字、...