结果如下: --Alphabetic List of Variables and Attributes--- # Variable Type Len Pos Label --- 3 cost Num 8 16 价格 4 profit Num 8 24 2 sales Num 8 8 销售额 1 year Num 8 0 年份 /*结果中出现了变量标签*/ 3.变量值标签: 变量...
DLM=和DSD选项可以让SAS容易的读取这些分隔符文件。 DLM=用list input读取文件时,变量值之间应该用空格隔开。对于其他的分隔符,可以用DLM=,DELIMITER=选项来指定,从而可以读取文件。 例子如下的数据中,学生姓名、每周读的书的数目是用逗号隔开的: 用选项来指定分隔符即可: 如果原始数据是用制表符隔开的,那么可以使用...
statistic可能是proc means语句中的任何一种统计量(sum,n,mean…),variable-list则界定VAR语句中哪些变量需要输出,name-list则定义统计量的新名字。比如,proc means语句产生了一个数据集ZOOSUM,包括一个观测值和变量lionweight(the mean of the lions’weights),BearWeight(the mean ofthe bears’weights)。 Noprin...
- Need to view the list of variables in one dataset but not in the other dataset and add / delete variables, test with VAR and WITH if different names. If you want a list of BASE variables but not in the COMPARE data set, use LISTBASEVAR and if you want a list of the COMPARE va...
FIND Function Searches for a specific substring of characters within a character string. FINDC Function Searches a string for any character in a list of characters. FINDW Function Returns the character position of a word in a string, or returns the number of the word in a string. ...
SUBSCRIPT is the number of values the array is going to store. ($) is an optional parameter to be used only if the array is going to store character values. VARIABLE-LIST is the optional list of variables which are the place holders for array values. ARRAY-VALUES are the actual values ...
纵向合并后,new_dataset 的行数等于每个数据集行数的加总。If one of the data sets has a variable not contained in the other data sets, then the observations from the other data sets will have missing values for that variable. 横向合并中的 by variable list 是所有数据集共同的变量。
SASprovides an ARRAY facility, and whether Stata provides an analogy is a popular question on both our help line andStatalist. There is an analogy, but it is going to take some explaining. First, let us agree on a problem: I have a list of variables—say, mpg, weight, and displ—and...
The PDV can be thought of asone long list of storage areas for all the named variablesof the DATA step. PDV 可以被认为是DATA步中用来存放 已命名变量 的 一个地址列表。 https://www.bilibili.com/read/cv11240149 the variables defined as theKEYandDATAcomponents of the hash objectare not automat...
listerr和crosslisterr选项——listerr表示输出由后验概率产生错误分类的样品点的有关信息,crosslisterr表示要求以交叉表的形式输出实际类别与分类结果之间一致和不一致的有关信息; var语句——指定用于进行判别分析的变量子集,建立起关于此变量子集的判别函数表达式; priors语句——指定先验概率:priors ...