Closes #1046. In certain cases, cells don't contain any pixel clusters. These should not contribute to the cell SOM training.
How did you implement your changes
In create_c2pc_data, after cluster_counts is fully computed for all FOVs, add a step that drops rows that sum to zero across the pixel cluster expression cols. This propagates over to cluster_counts_size_norm (the data that trains the SOM and receives the cluster assignments), since it depends on cluster_counts.
What is the purpose of this PR?
Closes #1046. In certain cases, cells don't contain any pixel clusters. These should not contribute to the cell SOM training.
How did you implement your changes
In
create_c2pc_data, aftercluster_countsis fully computed for all FOVs, add a step that drops rows that sum to zero across the pixel cluster expression cols. This propagates over tocluster_counts_size_norm(the data that trains the SOM and receives the cluster assignments), since it depends oncluster_counts.