Contents of the .csv files in this folder
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1. 2D3D-combined-features
Contains combined data for 2D materials from c2db.db and 3D perovskites from cubic_perovskites.db. 
Can be used for training ML models for prediction of heat of formation.  
Heat of formation carries the label 'shform' in this data file. 'smeig*' are the eigenvalues
of the sine matrix. Composition weighted atomic quantities, and stoichiometric quantities
are obvious from their labels.

2. 3d5d-data-hform
Contains data for the 278 combined 3d5d compouds. These can be used to predict
their heat of formation using ML models that have been trained for prediction of this quantity.
'cell_area' is the area of the unit cell, and 'n_metal' is the number of metal atoms in the 
unit cell.

3. cmr-combined-all-features
Contains data for 3515 2D materials obtained from the c2db database. This is
referred to as *data-full* in the manuscript. 'hform' is the heat of formation.

4. cmr-stable-all-features
Contains data for 2846 stable (h_form < 0) 2D materials obtained from c2db database.
This is referred to as *data-stable*.

5. perovskites-3D-all-features
Contains data for 3D cubic perovskites having heat of formation < 0 as obtained from cubic_perovskites.db
Heat of formation is given under the label 'shform' in this file.
