制作散射輪廓在python中，如果我有一組數(shù)據(jù)x, y, z我可以散布import matplotlib.pyplot as plt
plt.scatter(x,y,c=z)我如何得到plt.contourf(x,y,z)分散？
3 回答
慕容森
TA貢獻(xiàn)1853條經(jīng)驗(yàn) 獲得超18個(gè)贊
使用tricontourf：
import matplotlib.tri as triimport matplotlib.pyplot as plt triang = tri.Triangulation(x, y)plt.tricontour(x, y, z, 15, linewidths=0.5, colors='k')plt.tricontourf(x, y, z, 15)
舊回復(fù)：
使用以下函數(shù)轉(zhuǎn)換為contourf所需的格式：
from numpy import linspace, meshgridfrom matplotlib.mlab import griddatadef grid(x, y, z, resX=100, resY=100): "Convert 3 column data to matplotlib grid" xi = linspace(min(x), max(x), resX) yi = linspace(min(y), max(y), resY) Z = griddata(x, y, z, xi, yi) X, Y = meshgrid(xi, yi) return X, Y, Z
現(xiàn)在你可以這樣做：
X, Y, Z = grid(x, y, z)plt.contourf(X, Y, Z)
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