Flexible Data Sampling Tool

Data sampling is the process of selecting a subset of data points from a larger dataset for analysis. It's a fundamental technique in data science, used for everything from model training and testing to exploratory data analysis. Our Data Sampler tool provides a simple yet powerful interface to perform both random and stratified sampling on your data.

How It Works

Upload your CSV, JSON, or Excel file, and the tool will display your full dataset. You can then choose your sampling method. For random sampling, specify the exact number of rows you want in your sample. For stratified sampling, select a categorical column and a percentage to ensure your sample maintains the original data's subgroup proportions. The resulting sample is shown instantly and can be downloaded as a CSV.

Key Features

  • Multiple File Formats: Supports CSV, JSON, and Excel (.xlsx, .xls) files.
  • Two Sampling Methods:
    • Random Sampling: Pulls a specified number of rows randomly from the entire dataset. Perfect for creating unbiased test sets.
    • Stratified Sampling: Samples a percentage from each subgroup based on a chosen column. Essential for preserving the distribution of categorical variables.
  • Intuitive Controls: Easily switch between methods and adjust sample size or percentage with simple inputs.
  • Side-by-Side Comparison: View your original dataset and the generated sample in separate, clearly labeled tables.
  • Download Your Sample: Export the sampled data to a CSV file with a single click.

How to Use the Data Sampler

  1. Step 1: Upload Your Data
    Click "Upload" to load your dataset. The tool also starts with sample data for a quick demo.
  2. Step 2: Select a Sampling Method
    Choose between "Random" and "Stratified" sampling.
  3. Step 3: Configure Your Sample
    - If Random, enter the desired number of rows for your sample.
    - If Stratified, select the column to group by and the percentage of each group to include.
  4. Step 4: Generate and Download
    Click the "Generate Sample" button. The new sample will appear, ready for you to inspect or download as a CSV.

Find Our Tool

Data Sampler, Random Sample Generator, Stratified Sampling Tool, Dataset Sampler, CSV Sampler, Excel Sampler, Statistical Sampling, Data Subset Tool, Machine Learning Sampler, Online Data Sampling.