/**
 * Section 5: Data Engineering & Structural Insights Analyzer (Fixed Version)
 * Simplified implementation that works with current data structures
 */
import type { Section1Result } from '../overview/types';
import type { Section2Result } from '../quality/types';
import type { Section3Result } from '../eda/types';
import type { Section5Result, Section5Config, Section5Progress } from './types';
export declare class Section5Analyzer {
    private config;
    private warnings;
    private startTime;
    constructor(config?: Partial<Section5Config>);
    /**
     * Main analysis method
     */
    analyze(section1Result: Section1Result, section2Result: Section2Result, section3Result: Section3Result, progressCallback?: (progress: Section5Progress) => void): Section5Result;
    private generateSimplifiedAnalysis;
    private generateSimpleDDL;
    private standardizeColumnName;
    /**
     * Infer appropriate database type based on column name and characteristics
     */
    private inferDatabaseType;
    /**
     * Extract PCA insights from Section 3 results for feature engineering
     */
    private extractPCAInsights;
    /**
     * Calculate enhanced ML readiness score incorporating PCA insights
     */
    private calculateEnhancedMLReadinessScore;
    /**
     * Enhance feature preparation matrix with PCA insights
     */
    private enhanceFeatureMatrix;
    private reportProgress;
}
//# sourceMappingURL=section5-analyzer-fixed.d.ts.map