np.pad applied to the MaskedArray subclass silently unmasks the array, and returns output as ndarray · Issue #8881 · numpy/numpy · GitHub
![Numpy > Masked array > マスクの部分を999999で置換する > numpy.ma.MaskedArray.filled() | fill_value引数指定の値で置換する #numpy - Qiita Numpy > Masked array > マスクの部分を999999で置換する > numpy.ma.MaskedArray.filled() | fill_value引数指定の値で置換する #numpy - Qiita](https://qiita-user-contents.imgix.net/https%3A%2F%2Fcdn.qiita.com%2Fassets%2Fpublic%2Farticle-ogp-background-9f5428127621718a910c8b63951390ad.png?ixlib=rb-4.0.0&w=1200&mark64=aHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-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&mark-x=142&mark-y=112&blend64=aHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTcxNiZ0eHQ9JTQwN29mOSZ0eHQtY29sb3I9JTIzMjEyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTMyJnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnM9ZmU0MDk4ZDkwOTRkNzgwMmNkN2E0NDAzZGJlZjgyMWE&blend-x=142&blend-y=491&blend-mode=normal&s=754766e39e3bd04e114fea3a345706a2)
Numpy > Masked array > マスクの部分を999999で置換する > numpy.ma.MaskedArray.filled() | fill_value引数指定の値で置換する #numpy - Qiita
![CDAT supports the combination of three array objects: the Python NumPy... | Download Scientific Diagram CDAT supports the combination of three array objects: the Python NumPy... | Download Scientific Diagram](https://www.researchgate.net/publication/220765381/figure/fig4/AS:667654146768905@1536192561587/CDAT-supports-the-combination-of-three-array-objects-the-Python-NumPy-Array-where-all.png)
CDAT supports the combination of three array objects: the Python NumPy... | Download Scientific Diagram
![The use of mask array in U 50. A schematic diagram demonstrating the... | Download Scientific Diagram The use of mask array in U 50. A schematic diagram demonstrating the... | Download Scientific Diagram](https://www.researchgate.net/publication/316249788/figure/fig2/AS:667868765122569@1536243730524/The-use-of-mask-array-in-U-50-A-schematic-diagram-demonstrating-the-use-of-a-mask-array.png)