儲蓄保險王 Blog
Python: matplotlib繪製出的圖表如何插入背景圖? img = plt.imread(‘background_image.png’) ; ax.imshow(img, extent=[0, 10, -1.2, 1.2], aspect=’auto’, alpha=0.5)
import matplotlib.pyplot as plt im...
Python: matplotlib如何繪製出副刻度?minor_locator = ticker.MultipleLocator(0.5) ; ax.xaxis.set_minor_locator(minor_locator)
import matplotlib.pyplot as plt im...
Python: 如何用scipy.interpolate做內插? from scipy.interpolate import interp1d ; f = interp1d(x, y) ; 如何用numpy.polyfit() 做外插?
from scipy.interpolate import inte...
Python: matplotlib繪圖,如何限定座標軸範圍? plt.axis([xmin, xmax, ymin, ymax])
plt.axis([xmin, xmax, ymin, ymax])...
Python: numpy.mean(arry2d , axis=0) ; axis參數如何用? numpy.max() ; numpy.min() ; numpy.argmax() #沿軸max的index; numpy.argmin() #沿軸min的index
import numpy as np a = np.array([[...
Python: 如何用isin()函式切片出兩個 pandas.Series 重複的元素? ser_bool = 長的Series.isin (短的Series); numpy.bool_ ; WR75 WR42 WR28頻段為何?
兩個 pandas.Series: s1, s2 s1的最後兩個元素...

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