Contour Plot when both x & y axis are in logscale

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Md Jahid Hasan Sagor
Md Jahid Hasan Sagor el 19 de Ag. de 2022
Comentada: AD el 31 de Jul. de 2023
Can anyone help me to contour plot when both x & y axis are in logscale? Please see the figure.
I have coded like below but it didn't show logscale in both axis:
f=logspace(-3,0,100);
R0=logspace(-6,-2,100);
[X,Y]=meshgrid(f,R0);
%%%Main code body
....
.....
.....
Z=1+(gamma/(k*d^2))*(f.^2*delL+delR+2*R0.*X.*Gamma_func);
%%%%%%%
contour(X,Y,Z)

Respuestas (2)

Alexis Carranza Hidalgo
Alexis Carranza Hidalgo el 27 de Jul. de 2023
x = linspace(0,2*pi);
y = linspace(0,4*pi);
[X,Y] = meshgrid(x,y);
Z = sin(X)+cos(Y);
% Plot using contour
figure;
contour(X,Y,Z);
% Use the 'set' command to graph in log scale
set(gca, 'XScale', 'log');
set(gca, 'YScale', 'log');
axis tight; % Adjust the axis limits
xlabel('X');
ylabel('Y');

Chunru
Chunru el 19 de Ag. de 2022
Editada: Chunru el 19 de Ag. de 2022
[x, y, z] = peaks;
x = x+4; y = y+4; z=z+8; % make it positive
figure
contourf(x, y, z);
colorbar
xlabel('x'); ylabel('y');
figure
%contour(log10(x), log10(y), z);
contourf(log10(x), log10(y), log10(z));
h2 = colorbar;
zt = h2.Ticks;
h2.TickLabels = "10^{"+string(zt')+"}";
% customize ticklabels
xt = xticks;
xticklabels("10^{"+string(xt')+"}");
yt = yticks;
yticklabels("10^{"+string(yt')+"}");
xlabel('x'); ylabel('y');
  4 comentarios
Md Jahid Hasan Sagor
Md Jahid Hasan Sagor el 19 de Ag. de 2022
Thank you.But what you plotted is not representing the axis are in logarithm scale.
Chunru
Chunru el 19 de Ag. de 2022
What do you mean? They are indeed in log scale.

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