A.待合并的两个数据文件的数据结构完全相同
B.可以是两个完全不相干的数据文件
C.在两个数据文件中,数据含义相同的数据项最好起相同的变量名
D.待合并的两个数据文件的个案数相同
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A.定类型变量
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A.SPSS数据文件和Excel表格是一样的
B.数据文件中一行或一列是一个变量
C.数据文件中有变量视窗和数据视窗两个视窗
D.SPSS数据文件可以用Excel打开
A.原始数据的组织方式
B.计数数据的组织形式
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A.sps
B.spo
C.sav
D.rtf
A.数据编辑窗口
B.结果输出窗口
C.语句窗口
D.命令窗口
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Which of the following statements is not true?()
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A cumulative frequency polygon is also called ().
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