How do I remove the axis tick marks on seaborn heatmap

Question

I have a seaborn heatmap but i need to remove the axis tick marks that show as dashes. I want the tick labels but just need to remove the dash (-) at each tick on both axes. My current code is:

sns.heatmap(df, annot=True, fmt='.2f', center=0)

I tried despine and that didnt work.

Answer 1

@ImportanceOfBeingEarnest had a nice answer in the comments that I wanted to add as an answer (in case the comment gets deleted).

For a heatmap:

ax = sns.heatmap(df, annot=True, fmt='.2f', center=0)
ax.tick_params(left=False, bottom=False) ## other options are right and top

If this were instead a clustermap (like here How to remove x and y axis labels in a clustermap?), you'd have an extra call:

g = sns.clustermap(...)
g.ax_heatmap.tick_params(left=False, bottom=False)

And for anyone who wanders in here looking for the related task of removing tick labels, see this answer (https://stackoverflow.com/a/26428792/3407933).

Answer 2

ax = sns.heatmap(df, annot=True, fmt='.2f', center=0)
ax.tick_params(axis='both', which='both', length=0)

ax is a matplotlib.axes object. All axes parameters can be changed in this object, and here's an example from the matplotlib tutorial on how to change tick parameters. both selects both x and y axis, and then their length is changed to 0, so that the ticks are not visible anymore.