問題描述

plt.scatter(x=rw.x_value,y=rw.y_value,c=point_number,colormap=plt.cm.Blues,gecolors=’none’,s=15)

其中point_number是指的一系列的點，然后用range（）生成的一個數字列表，并且使用顏色映射，但是在運行的時候，報錯ValueError: Invalid RGBA argument: 0用的是python3我想問一下scatter里面的color參數到底如何能夠設置每個點

問題解答

下面是文檔中對scatter的參數c的說明：c : color, sequence, or sequence of color, optional, default: ‘b’c can be a single color format string, or a sequence of color specifications of length N, or a sequence of N numbers to be mapped to colors using the cmap and norm specified via kwargs (see below). Note that c should not be a single numeric RGB or RGBA sequence because that is indistinguishable from an array of values to be colormapped. c can be a 2-D array in which the rows are RGB or RGBA, however, including the case of a single row to specify the same color for all points.

可見可以傳入一個序列（list之類的）