Document API completely

All public APIs must have comprehensive and clear documentation that helps developers understand functionality without examining implementation details. Follow these guidelines:

1. Methods and classes: Document the purpose, behavior, parameters, and return values. Class-level documentation should explain usage patterns and limitations. ```java /**
   • Standardize input variable along given axis by subtracting mean and dividing by standard deviation.
   • @param input The input variable to standardize
   • @param dimensions Dimensions along which to calculate statistics
   • @return Standardized variable with zero mean and unit variance along specified dimensions */ public SDVariable standardize(SDVariable input, int… dimensions) { // Implementation } ```
2. Empty or non-obvious implementations: Always include comments explaining why a method is empty or has unexpected behavior.

   @Override
   public void setValue(Number value) {
       // No action needed - this method intentionally left empty as value is managed by parent condition
   }
   

3. Deprecation: Follow this format for all deprecated elements:
   • Add @Deprecated annotation
   • Include @deprecated Javadoc tag explaining why and what to use instead
   • Use {@link} references to replacements ```java /**
   • @deprecated As of version 1.0.0-beta, replaced by {@link #newMethod()} which provides better performance */ @Deprecated public void oldMethod() { // Implementation } ```
4. Method references: Ensure @see and {@link} references are accurate and helpful. For overloaded methods, clearly specify which signature is being referenced and explain default behavior. ```java /**
   • As per {@link #pad(INDArray, int[][], List<double[]>, PadMode)} with ‘constantValues’ being zeros (zero padding) */ public static INDArray pad(INDArray toPad, int[][] padWidth, PadMode padMode) { // Implementation } ```
5. Special elements: Document enum values appropriately with Javadoc rather than inline comments.

   public enum WeightsFormat {
       /**
        * Kernel height, kernel width, input channels, output channels [kH, kW, iC, oC]
        */
       YXIO,
          
       /**
        * Output channels, input channels, kernel height, kernel width [oC, iC, kH, kW]
        */
       OIYX
   }