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我想搜索一个字符变量,找到所有包含“internet”一词的观察结果,并将 1 插入为这些观察结果创建的虚拟变量中。真的,我只需要帮助在一列中搜索字符串,但我找不到可以引用单列的函数。
尝试:
indicator_var = index(variable, "string")