What commands do I need to shift the x-axis values in an open Matlab figure without affecting the y-axis values? (as is shown in the images below)
My best guess so far is:
LineH = get(gca, 'Children');
x = get(LineH, 'XData');
y = get(LineH, 'YData');
offset=20;
nx = numel(x);
for i=1:nx
x_shifted{i} = x{i} + offset;
end
set(LineH,'XData',x_shifted')
Which gives me the error:
Error using matlab.graphics.chart.primitive.Line/set
While setting the 'XData' property of Line:
Value must be a vector of numeric type
Thanks!
You have to encapsulate the 'XData'
property name in a cell to update multiple plot objects at a time. From the set
documentation:
set(H,NameArray,ValueArray)
specifies multiple property values using the cell arraysNameArray
andValueArray
. To setn
property values on each ofm
graphics objects, specifyValueArray
as anm
-by-n
cell array, wherem = length(H)
andn
is equal to the number of property names contained inNameArray
.
So to fix your error, you just have to change the last line to this:
set(LineH, {'XData'}, x_shifted');
And if you're interested, here's a solution that uses cellfun
instead of a loop:
hLines = get(gca, 'Children');
xData = get(hLines, 'XData');
offset = 20;
set(hLines, {'XData'}, cellfun(@(c) {c+offset}, xData));