cmap 的选择:
binaryseismicReds
多类别数据的 scatter(逐点散列),在 matplotlib 中的实现关键在于,color
关键字的定义:
def plot_scatter(values, cls):# Create a color-map with a different color for each class.import matplotlib.cm as cmcmap = cm.rainbow(np.linspace(0.0, 1.0, num_classes))# Get the color for each sample.colors = cmap[cls]# Extract the x- and y-values.x = values[:, 0]y = values[:, 1]# Plot it.plt.scatter(x, y, color=colors)plt.show()