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I want to remove the (ticks) axis with numbers to the right of the colorbar. I am using matplotlib with python as follows:
f = plt.figure()
ax = f.add_subplot(1,1,1)
i = ax.imshow(mat, cmap= 'gray')
cbar = f.colorbar(i)
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To remove the ticks on the y-axis, tick_params() method has an attribute named left and we can set its value to False and pass it as a parameter inside the tick_params() function. It removes the tick on the y-axis.
By default, in the Matplotlib library, plots are plotted on a white background. Therefore, setting the color of tick labels as white can make the axis tick labels hidden. For this only color, the attribute needs to pass with w (represents white) as a value to xticks() and yticks() function.
By using the method xticks() and yticks() you can disable the ticks and tick labels from both the x-axis and y-axis. In the above example, we use plt. xticks([]) method to invisible both the ticks and labels on the x-axis and set the ticks empty. plt.
If you just want to remove the ticks but keep the ticklabels, you can set the size of the ticks to be 0 as following
f = plt.figure()
ax = f.add_subplot(1,1,1)
mat = np.arange(100).reshape((10, 10))
i = ax.imshow(mat, cmap= 'viridis')
cbar = f.colorbar(i)
cbar.ax.tick_params(size=0)
If you want to remove both, the ticks and the labels, you can use set_ticks([]) by passing an empty list.
cbar.set_ticks([])
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