Can I set MarkerFaceColor to part of the data points?

plot(1:10,1:10,'s')

Can I set MarkerFaceColor to red for point 1,2,3 while leave the other points unchanged?

I tried in interactive figure editor, it seems this is impossible.

Answer 1

[Star Strider]

Yes!

figure
plot(1:10, 1:10, 's')
hold on
plot((1:3), (1:3), 'sr','MarkerFaceColor','r')
hold off

.

[Xingwang Yong]

Yes, this is feasiable. I used this trick before. Now I wonder is there a way I can control the properties of individual points.

[Walter Roberson]

plot((1:3), (1:3), 'sr')

is enough in context, unless you need the edge color different than the face color.

See also MarkerIndices property. It can help in cases such as wanting to plot lines with markers only at some locations.

[Xingwang Yong]

Yes, it can get the work done. But this is somewhat inelegant. For now, it is the only solution though.

MarkerIndices won't help. Because I want to plot all the markers, while only fill part of these points.

[Star Strider]

‘Inelegance’ is not always a problem, although it may be an inconvenience. All interpretation and compilation approaches have their limitations. That’s simply reality.

[Walter Roberson]

Although it is possible to access and change the properties of the MarkerHandle property of the line object, and see and change the internal uint8 EdgeColorData and FaceColorData... changes there do not seem to be reflected in what is drawn

[Star Strider]

In the immortal words of the Rolling Stones: You Can't Always Get What You Want.

[Xingwang Yong]

Well, thank you Walter and Star. I will use the way Star recommended.

[Star Strider]

As always, my (our) pleasure!

[Walter Roberson]

Ah, on desktop changing the MarkerHandle.FaceColorData to a 4 x N uint8 array gives a warning about wrong data. If you change it to a 4 x 1 uint8 array, then it does affect what is drawn.

MATLAB Online did not give me the warning message, but ignored the 4 x N data anyhow.