This demo visualizes aggregate heatmaps of permutations. Each row is a permutation, columns represent positions 1..n, and cell color shows the frequency or aggregate value. Useful for exploring patterns in sets of permutations. Upload or generate a set of permutations. The heatmap shows, for each position in the permutation, how often each value appears there across all samples. Darker cells indicate higher frequency. This is useful for analyzing randomness, bias, or structure in permutation data.