prevent crash

[zktuong]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 15.78947% with 16 lines in your changes missing coverage. Please review.

Project coverage is 72.49%. Comparing base (117356a) to head (2532b44).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
R/plot_cpdb.R	0.00%	8 Missing ⚠️
R/plot_cpdb2.R	33.33%	2 Missing ⚠️
R/plot_cpdb3.R	33.33%	2 Missing ⚠️
R/plot_cpdb4.R	33.33%	2 Missing ⚠️
R/plot_cpdb_heatmap.R	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #129      +/-   ##
==========================================
- Coverage   72.81%   72.49%   -0.32%     
==========================================
  Files           9        9              
  Lines        2262     2276      +14     
==========================================
+ Hits         1647     1650       +3     
- Misses        615      626      +11     

Files with missing lines	Coverage Δ
R/plot_cpdb2.R	53.49% <33.33%> (-0.26%)	⬇️
R/plot_cpdb3.R	75.45% <33.33%> (-0.59%)	⬇️
R/plot_cpdb4.R	68.42% <33.33%> (-0.47%)	⬇️
R/plot_cpdb_heatmap.R	97.05% <0.00%> (-1.45%)	⬇️
R/plot_cpdb.R	64.94% <0.00%> (-0.51%)	⬇️