CLUSTERING & VISUALIZATION

Create Heatmaps in 30 Seconds

Visualize complex matrices and gene expression data with hierarchical clustering. Plotivy handles the normalization, clustering, and annotation tracks automatically.

Heatmaps Are Harder Than They Look

Clustering Complexity

Choosing the right distance metric (Euclidean, Pearson) and linkage method (Ward, Complete) requires deep statistical knowledge.

Annotation Nightmares

Adding color bars for sample metadata (e.g., Treatment, Time) in Python or R often involves complex data wrangling and grid layouts.

Color Scale Issues

Setting the right center point (z-score = 0) and choosing colorblind-friendly palettes is crucial but often overlooked.

How Plotivy Creates Heatmaps

1

Upload Matrix

Upload your gene expression matrix, correlation table, or any numerical dataset.

2

Describe Clustering

"Cluster rows and columns. Add annotation bars for 'Group' and 'Batch'. Use a blue-white-red color scale."

3

Export

Get a high-DPI image with perfectly aligned dendrograms and legends.

Example Prompt

“Create a heatmap of the top 50 variable genes. Perform hierarchical clustering on both rows and columns using Euclidean distance and Ward linkage. Add annotation tracks for 'Treatment' and 'Timepoint' on top. Use a diverging 'RdBu_r' colormap centered at 0.”

✨ Plotivy AI generates the complex seaborn clustermap code automatically.

Advanced Heatmap Features

Hierarchical Clustering

Automatically group similar rows and columns. Choose from various linkage methods and distance metrics.

Metadata Annotations

Easily add color-coded bars to visualize sample metadata alongside your heatmap.

Z-Score Normalization

Normalize data by row or column to highlight relative differences rather than absolute values.

Publication Ready

Export vector graphics (PDF/SVG) where text remains editable and resolution is infinite.

Visualize Your Data Matrix

Create professional heatmaps with clustering in seconds.

No account required • Free during beta • Export unlimited