how to flip the direction of the axis?

Dear all,

I want to change the x-axis direction from right to left but also keeping the values to be not affected (reversed/flipped). when I used the fooling command the mentioned problem is caused:

         set(gca, 'XDir','reverse')

How can I solve that?

thanks

Answer 1

[madhan ravi]

xticklabels([1:10]) %an example 
    set ( gca, 'xdir', 'reverse' )

[madhan ravi]

It’s 'xdir' not 'XDir'

[DGM]

From @Matthew Stengrim's flag-as-comment:

"incorrect"

While that's a valid point, please use comments and try to explain what you mean to readers instead of just sniping with unhelpful single-word comments.

set() and get() are case-insensitive:

xticklabels([1:10]) %an example 
set ( gca, 'XDir', 'reverse' ) % set still works

% see also:
get(gca,'XDir') % the actual case of the property name

ans = 'reverse'

get(gca,'xdir') % lower case

ans = 'reverse'

get(gca,'xdIR') % goofy case

ans = 'reverse'

% case does matter if you directly use dot indexing on the axes object
hax = gca;
hax.XDir % there is an XDir property

ans = 'reverse'

hax.xdir % but there is no xdir property

Unrecognized method, property, or field 'xdir' for class 'matlab.graphics.axis.Axes'.

As to what the nuances of OP's actual problem were, I can't know.

Answer 2

[Oli Fairfax]

You're probably better off reversing the data and the axes rather than playing with the tick lables, in my opinion:

% Example data
x = [1:0.1:10];
y = sin(x);

% Normal plot
figure;
plot(x,y)

% Reversed axes plot
figure
plot(flip(x),y)
set(gca, 'XDir','reverse')

[DGM]

Yes, sometimes it's necessary to do some combination of flipping the data and/or the axes. This is often an issue when trying to plot data overlaid atop images.