How is arr[:,0] different from arr[:,[0]]
How is arr[:,0] different from arr[:,[0]]
题目类型: 技术面试题
这是一道技术面试题,常见于澳洲IT公司面试中。
难度: easy
标签: interviewbit, numpy, topic-specific, python, data-science
参考答案摘要
arr[:,0] - Returns 0th index elements of all rows. In other words, return the first column elements. import numpy as np arr = np.array([[1,2,3,4],[5,6,7,8]]) new_arr =arr[:,0] print(new_arr) Output: [...
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