MATLAB: How to shift xaxis location to origin (0,0)

axisshift

Attached is my graph that I have plotted. How to shift the x axis position so that it will be plotted on y=0? Anyway I am using R2013a version of MATLAB.

thank you

Best Answer

OK, got a minute now...

hAx=axes;                      % a new axes
plot(randn(10,1))              % put some data on it...
yl=ylim;                       % get y-axis limits
pos=get(hAx,'position');       % and axes position vector
yrat=yl(end)/(yl(end)-yl(1));  % fractional position of origin relative y range
yht=yrat*pos(4);               % adjusted second axes height 
pos(2)=pos(2)+pos(4)-yht;      % new bottom is top position {pos(2)+pos(4)} less height
pos(4)=yht;                    % and new height into vector
hAx(2)=axes('position',pos,'color','none');  % second axes with this position an no color
set(hAx(2),'ytick',[])         % clear unwanted ticks from showing...
set(hAx(1),'xticklabel',[])    % clear labels on first x-axis
linkaxes(hAx,'x')              % and synchronize x-axes
grid(hAx(1),'on')              % just a touch

This produced

for a particular set of random data; your result will vary...

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MATLAB: How to have a graph with labeled x-axis ticks on the bottom and top of the graph

By default the plot should have a set of axes with a labeled set of tick marks on the bottom and the left. The example below explains how this can be done for both the X and Y axes with different Tick labels on all four sides.

plot(1:10);
% First, store the handle to those axes.
% Next create a second set of axes, 
% position This on top of the first and make it transparent.
ax1=gca;
ax2 = axes('Position', get(ax1, 'Position'),'Color', 'none');
set(ax2, 'XAxisLocation', 'top','YAxisLocation','Right');
% set the same Limits and Ticks on ax2 as on ax1;
set(ax2, 'XLim', get(ax1, 'XLim'),'YLim', get(ax1, 'YLim'));
set(ax2, 'XTick', get(ax1, 'XTick'), 'YTick', get(ax1, 'YTick'));
OppTickLabels = {'a' 'b' 'c' 'd' 'e' 'f' 'g' 'h' 'i' 'j' 'k'}
% Set the x-tick and y-tick  labels for the second axes
set(ax2, 'XTickLabel', OppTickLabels,'YTickLabel',OppTickLabels);

MATLAB: Deletting X and Y axes ticks

set(gca,'xtick',[]) set(gca,'ytick',[])

Best Answer

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