Make sure data is compatible with Kriging model

[juliohm]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 91.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 93.13%. Comparing base (e54eb11) to head (c6701a1).

Files with missing lines	Patch %	Lines
src/krig.jl	88.88%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #26      +/-   ##
==========================================
+ Coverage   92.63%   93.13%   +0.50%     
==========================================
  Files          10       10              
  Lines         448      437      -11     
==========================================
- Hits          415      407       -8     
+ Misses         33       30       -3     

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