How to remove markers in plot at specified places?

I have a 2d plot as shown in attached image, I would like to remove the middle nine marker points in this plot. How can I achieve this? Please provide your suggestion. Thank you all.

clear
clc
nx=5;
ny=5;
x=linspace(0,1,nx);
y=linspace(0,1,ny);
[X,Y]=meshgrid(x,y);
x1=linspace(1/4,1/1.33333,nx);
y1=linspace(1/4,1/1.33333,ny);
[X1,Y1]=meshgrid(x1,y1);
hold on
plot(X,Y,'k',Y,X,'k');
plot(X,Y,'ro',Y,X,'ro','MarkerFaceColor',[1,0.6,0.6]);
plot(X1,Y1,'k',Y1,X1,'k');

axis square

[Walter Roberson]

Which MATLAB release? The ability to adjust this easily is relatively new.

[Ganesh kumar Badri narayan]

This was done in MATLAB v2017b

Answer 1

[Les Beckham]

If the goal is to remove all of the markers except for the 'outer' ones, then try this. This should be relatively generic (independent of the size specified by nx and ny), if not elegant.

Replace this line:

plot(X,Y,'ro',Y,X,'ro','MarkerFaceColor',[1,0.6,0.6]);

with these two lines:

Youter(2:end-1,2:end-1)=NaN;
plot(X, Youter, 'ro', 'MarkerFaceColor', [1, 0.6, 0.6])

If I misinterpreted your goals, post a comment making them more clear.

[Ganesh kumar Badri narayan]

Ok this code removes all the markers from the plot. i will make my question more clear. I want to remove only the highlighted markers in the plot screen. Please refer attached image for more info.

[Les Beckham]

I'm pretty sure that is what my approach does. Did you try it?

[Ganesh kumar Badri narayan]

My bad I forgot to change the name. It works perfect. Thank you very much.

[Les Beckham]

You are quite welcome.

Answer 2

[Walter Roberson]

With recent MATLAB, you can set the MarkerIndices property of line objects; see https://www.mathworks.com/help/matlab/creating_plots/create-line-plot-with-markers.html#bvcbmlx-1

You are plotting an array of Y so one line object would be generated for each column. Record the output of plot() in order to get those handles. Leave the first and last of the handles alone and set the others to have only 1 and their length in MarkerIndices property.