MATLAB 中如果用scatterplot 绘制的图，颜色怎么改

Question

MATLAB 中如果用scatterplot 绘制的图，默认的是蓝色，想要用红色表示怎么写命令。加( ...,‘r’)不行啊

Answer 1

>>a = rand(10,1);

scatterplot(a,1,0,'rx');

追问

（a,1,0,'rx')中1，0是什么意思？

追答

scatterplot(x,n,offset,plotstring) is the same as the syntax above, except that plotstring determines the plotting symbol, line type, and color for the plot. plotstring is a string whose format and meaning are the same as in the plot function.

Answer 2

When C is a length(X)-by-3 matrix,t specifies the colors of the markers as RGB values,也就是后面决定颜色的RGB不能只是一列数组，要是length(X)-by-3 matrix。

scatter(msdata(i,1),msdata(i,2),'.',[0.1,0.3,0]); 可以改成
scatter(msdata(i,1),msdata(i,2),'.',ones(length(msdata(i,1)))*[0.1,0.3,0]);