[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f5EhsnfhKZXgL4nPcKbh-AEEYHcy1H0PJJm0M1JQkwoY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":79},[],"2025-06-09 18:30:34",197067930,[8,9,10,11],"异常值","无效数据","缺失值","重复值",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},13,"3501de46d37b33b79dd47e15137e5c42","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fffe9a10106d7d2334dc068e16f634d51.jpg","大数据财务分析","work_44204909","项目三——1.数据清洗","全局清洗是一种数据清洗方法,通过对整个数据集进行清洗,去除数据集中所有的()等",[21,33,42,52,61,70,80,89,92,100],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-06-09 18:30:32",197067904,[26,27,28,29],"字段替换","均值填补","字段合并","字段切分","将选定的多个字段合并为一个字段,相当于合并列的数据清洗方法是()","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],197067908,[37,38,39,40],"无法执行计算或操作","参与后续计算","可能参与也可能不参与后续计算","以上均不正确","如果一个单元格的值被替换为 NULL,它将被视为不存在值或空值,该单元格将()(单选题)",{"answer":43,"createTime":44,"id":45,"options":46,"question":51,"source":31,"type":32},[],"2025-06-09 18:30:33",197067911,[47,48,49,50],"去配置规则中找数据源","不需要数据源就可以直接清洗","自行上传数据进行数据清洗","以上都不对","在使用数据清洗系统时,点击【选择数据源】可以在下拉菜单中找到数据,还可以()",{"answer":53,"createTime":44,"id":54,"options":55,"question":60,"source":31,"type":32},[],197067913,[56,57,58,59],"将空格替换为0的主要目的是将空值转化为一个具体的数值,以便进行数学运算和统计分析","不要该数据","去重改数据","删除改数据","数据清洗中,将空格替换为 0 ,表示()",{"answer":62,"createTime":44,"id":63,"options":64,"question":69,"source":31,"type":32},[],197067917,[65,66,67,68],"替换","删除","切分","转换","下面字段【产品品名】的内容是"铅笔刀-蓝色",我们可以通过()方法来分别获取该字段中的"铅笔刀"和"蓝色"",{"answer":71,"createTime":44,"id":72,"options":73,"question":78,"source":31,"type":79},[],197067921,[74,75,76,77],"去除重复数据","填补缺失值","处理异常值","火车采集器","数据清洗包含()(多选题)",1,{"answer":81,"createTime":44,"id":82,"options":83,"question":88,"source":31,"type":79},[],197067925,[84,85,86,87],"全局清洗规则","按文件清洗规则","按字段清洗规则","按数量配置清洗规则","在使用数据清洗系统时,配置清洗规则时,可以选择()或()",{"answer":90,"createTime":5,"id":6,"options":91,"question":19,"source":31,"type":79},[],[8,9,10,11],{"answer":93,"createTime":5,"id":94,"options":95,"question":99,"source":31,"type":79},[],197067932,[96,97,98,50],"使用drop_duplicates()方法来删除重复的行或列","使用fillna()方法来填充缺失值,或者使用dropna()方法来删除包含缺失值的行或列","使用duplicated方法进行重复值的查找和处理","python数据清洗中,常用的方法包含()",{"answer":101,"createTime":5,"id":102,"options":103,"question":106,"source":31,"type":107},[],197067938,[104,105],"正确","错误","配置全局清洗规则是对整张表进行清洗规则设置",3]