SAS DO Loop in Data Step The SAS do loop is the simplest form of the do loop, which can be executed within the SAS data step. The actions are iterated at the do loop conditional and unconditional execution. It
NOTE: The data set WORK.EXAMPLE_2 has 1 observation and 2 variables. 第二个例子展现了数据步的一个迭代过程如何生成5条观测。DO LOOP循环改变了执行的默认顺序。 data example_3; do i = 1 to 5; x = ‘Minnesota’; y = ‘Columbus’; output; end; run; The log presents the following messag...
Arthur Li (2013), “Essentials of the Program Data Vector (PDV): Directing the Aim to Understanding the DATA Step!”, Proceedings of the 2013 SAS® Global Forum Whitlock, Ian, “How to Think Through the SAS® DATA Step”, Proceedings of the 31st Annual SAS® Users Group International...
I'd like to if it is possible to call macro variables by do loop in data step and how to achieve that. Specifically, how to make the following code work? %let var1 = varName1; %let var2 = varName2; data dsTest; do i=1 to 2; &&var&i = i; end; run; Thanks for your he...
SAS通常在数据步结尾将一个观测值写入数据中,但可以写入多个观测值,在DO loop中或单独使用output语句。...transpose过程可以转置数据集,将观测值转变为变量或将变量转变为观测值。...VAR语句 VAR语句命名变量,这个变量的变量值是要转置的。...下面的代码读取数据、按照队伍、选手排序数据,再转置数据: ? 在proc tr...
You can use DEVIANCE function in the DATA step to compute the deviance statistic for six different common regression models. As shown in the documentation, each model has a different formula that is used to compute the deviance. Let's try using the DEVIANCE function for a least squares ...
second and third arguments once rather than every time the COMPRESS function is called. Using the O modifier in the DATA step (excluding WHERE clauses), or in the SQL procedure, can make COMPRESS run much faster when you call it in a loop where the ...
THE SIMPLE BOOTSTRAP - YOU SHOULD KNOW THIS As we have discussed before, the usual 'bad' SAS code for bootstrapping is one humongous macro loop, with complex code lodged inside to handle all the pieces: a chunk to do the sampling from the data set, some statistical process that uses ...
Corner, CodersFehd, Ronald JControl, Disease
在SAS中将两列合并为一列可以使用多种方法,其中包括使用数据步骤和使用PROC SQL语句。下面是两种常用的方法: 方法一:使用数据步骤在SAS中,可以使用数据步骤中的RETAIN语句和CATS函...