How can I do a scatter plot with different color and symbols

Hi Everyone,

I want to plot scatter plot with diffrent symboles and color for my posative and negative data,

I have:

X: vector

Y vector

Z:[ -1 2 -3 4] so I made it:

Z1[NaN 2 Nan 4]

z2[-1 NaN -3 NaN]

I used:

scatter(X,Y,[],Z1,'r','filled','d'); hold on;

scatter(X,Y,[],Z2,'b','filled','c')

however it hasn't worked

Any help,

Thanks in advance!

Riyadh

Answer 1

[Cris LaPierre]

X = 0:4;
Y = 5:9;
Z = [ -1 2 -3 4];
ind = Z>=0;
scatter(X(ind),Y(ind),'r','filled','d'); 
hold on
scatter(X(~ind),Y(~ind),'b','filled','c')
hold off

[Riyadh Muttaleb]

Thank you so much!

[Riyadh Muttaleb]

One more question: what should I do if I have NaN in my Z:like[-1 2 -3 4 NaN Nan]

[Cris LaPierre]

Whatever you want. What do you want to do in that situation?

[Riyadh Muttaleb]

I mean NaN with differnt color and symbole than -ve and +ve, didin't work!

I highly appreciate your cooperation!

[Cris LaPierre]

Could you provide you actual code and values?

[Riyadh Muttaleb]

I don't know how to attach the code and data, however, assume I have these data.

I want to make color and symble for -ve , +ve and NaN (OR zero something diffrent)

X = 0:6;

Y = 5:11;

Z = [ -1 2 -3 4 NaN NaN];

Answer 2

[Riyadh Muttaleb]

I did it!

thank you so much for your time and help!