Function decodeMonteCarloMonthlyQuantiles

decodeMonteCarloMonthlyQuantiles(
    c: {
        cols: number;
        data: Record<string, Float64Array>;
        keys: string[];
        rows: number;
    },
    quantiles: number[],
): {
    category: string;
    group: string;
    monthIndex: number;
    quantile: number;
    value: number;
    variable: string;
}[]
Decodes a columnar monthlyQuantiles result back into a flat record array.

Keys are "category|group|variable". Layout: data[key][qIdx * cols + monthIndex] where rows = number of quantile levels and cols = number of months.
Parameters
- c: {
      cols: number;
      data: Record<string, Float64Array>;
      keys: string[];
      rows: number;
  }
  The ColumnarResult returned as monthlyQuantiles by simulateRentVsBuyMonteCarlo.
- quantiles: number[]
  The same quantile levels passed to options.monthlyQuantiles (e.g. [0, 0.5, 1]).
Returns {
    category: string;
    group: string;
    monthIndex: number;
    quantile: number;
    value: number;
    variable: string;
}[]
- Defined in decodeMonteCarloResults.ts:112