[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fhTR3iaznCcNxe0n1BahenaBBF6f6ZA7Rp091x6fXQWI":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-06-14 08:23:22",63428452,[8,9,10,11],"array","ones_like","eye","reshape",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"ae37231bb472296fd45cb53ceb1e249a","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8f6d1861c2d7225ca42808692d75026e.jpg","python数据分析","work_26601978","第四、五章Numpy综合大作业","不是NumPy数组创建的函数是( )",[21,32,35,44,53,59,64,69,74,79],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],63428451,[25,26,27,28],"rand","randint","randn","seed","能够产生正态分布的样本值的函数是( )","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":30,"type":31},[],63428453,[39,40,41,42],"A.arr = np.array([1, 2, 3])","B.arr = np.array([[1, 2, 3], [4, 5, 6]])","C.arr = np.array([[1, 2], [3, 4]])","D.np.ones((3, 3))","下面代码中,创建的是一个3行3列数组的是( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],63428454,[48,49,50,51],"[14]","[25]","[14, 25]","[20, 25]","请阅读下面一段程序:arr_2d = np.array([[11, 20, 13],[14, 25, 16],[27, 18, 9]])print(arr_2d[1, :1])执行上述程序后,最终输出的结果为( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":57,"source":30,"type":58},[],63428455,[],"分割数组的函数有____、____、vsplit",2,{"answer":60,"createTime":5,"id":61,"options":62,"question":63,"source":30,"type":58},[],63428456,[],"求数组的标准差函数是 ____,方差函数是____",{"answer":65,"createTime":5,"id":66,"options":67,"question":68,"source":30,"type":58},[],63428457,[],"在NumPy中,可以使用数组对象____执行一些科学计算",{"answer":70,"createTime":5,"id":71,"options":72,"question":73,"source":30,"type":58},[],63428458,[],"如果ndarray.ndim执行的结果为2,则表示创建的是____维数组",{"answer":75,"createTime":5,"id":76,"options":77,"question":78,"source":30,"type":58},[],63428459,[],"NumPy的数据类型是由一个类型名和元素____的数字组成",{"answer":80,"createTime":5,"id":81,"options":82,"question":83,"source":30,"type":58},[],63428460,[],"程序执行结果是 .import numpy as npa = np.arange____.reshape(2,6)c = a.ravel____c[0]=100print(a)"]