Create data/train.csv

data/train.csv

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+id,population_shift,protocol_deviation_rate,site_variance_level,endpoint_fragility,signal,label
+1,none,low,low,low,Population stable with low deviations and uniform sites. Endpoint robust,0
+2,minor,medium,low,low,Small population shift with manageable deviations. Endpoint remains robust,1
+3,minor,medium,medium,medium,Population shift plus site drift creates early endpoint fragility,1
+4,major,high,medium,high,Major population shift with high deviations undermines endpoint validity,2
+5,none,high,high,high,High deviations and site variance fragment endpoint despite stable population,2
+6,major,low,medium,medium,Population shifts but deviations low. Endpoint pressured by site effects,1
+7,major,medium,high,high,All nodes misalign. Endpoint becomes fragile and unstable,2
+8,minor,low,high,medium,Population mostly stable but site variance drives fragility,1
+9,none,medium,high,high,Site variance dominates and endpoint credibility breaks,2
+10,minor,high,low,medium,Deviations rising with mild population shift creates endpoint fragility,2