MATLAB: How to troubleshoot “Undefined function or variable ‘xticks’.” on MATLAB R2016a.

bugerrorsMATLABnot a bugr2016axticks

Getting "Undefined function or variable 'xticks'." on MATLAB R2016a on my home laptop. Script works perfectly fine on my work computer. Please advise.

Best Answer

According to xticks, then function was introduced in MATLAB R2016b. Your work computer must be at least on version R2016b. On your version, you may need to do something like

 get(hAxes, 'XTick')

to get the current x-ticks for your axes given the handle hAxes, and

 set(hAxes, 'XTick', ...)

to set the current x-ticks. See https://www.mathworks.com/matlabcentral/answers/92565-how-do-i-control-axis-tick-labels-limits-and-axes-tick-locations for details.

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MATLAB: How to reverse the y-axis when I use the IMAGE or IMAGESC function to display an image in MATLAB

This change has been incorporated into the documentation in Release 2009b (R2009b). For previous releases, read below for any additional information:

The first row of pixels is normally at the top of an image. By default, the IMAGE and IMAGESC functions invert the y-axis direction when the image is displayed on an axes by setting the 'YDir' property to 'reverse.' To invert the y-axis direction, set the 'YDir' property to 'normal', as follows:

load clown
clims = [10 60];
imagesc(flipud(X),clims)
colormap(gray)
set(gca,'YDir','normal')

MATLAB: Is there a way to get the values associated with the minor tick marks

ax = gca;
get(ax.XAxis, 'MinorTickValues')

For R2014b and later, following also work

ax = gca;
ax.XAxis.MinorTickValues

Best Answer

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MATLAB: How to reverse the y-axis when I use the IMAGE or IMAGESC function to display an image in MATLAB

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MATLAB: Is there a way to get the values associated with the minor tick marks