pandas-dataframe-analyzer

Overview

Automated DataFrame analysis skill for statistical summaries, missing value detection, data type inference, and memory optimization recommendations using pandas and profiling libraries.

Capabilities

• Statistical profiling of DataFrames
• Missing value pattern detection
• Data type optimization suggestions
• Memory footprint analysis
• Duplicate detection and handling
• Distribution analysis and visualization
• Correlation matrix computation
• Cardinality analysis for categorical features

Target Processes

• Exploratory Data Analysis (EDA) Pipeline
• Data Collection and Validation Pipeline
• Feature Engineering Design and Implementation

Tools and Libraries

• pandas
• pandas-profiling / ydata-profiling
• numpy
• scipy (for statistical tests)

Input Schema

json
{
  "type": "object",
  "required": ["dataPath"],
  "properties": {
    "dataPath": {
      "type": "string",
      "description": "Path to the data file (CSV, Parquet, JSON)"
    },
    "sampleSize": {
      "type": "integer",
      "description": "Number of rows to sample for analysis",
      "default": 10000
    },
    "profileType": {
      "type": "string",
      "enum": ["minimal", "standard", "full"],
      "default": "standard"
    },
    "outputFormat": {
      "type": "string",
      "enum": ["json", "html", "markdown"],
      "default": "json"
    }
  }
}

Output Schema

json
{
  "type": "object",
  "required": ["summary", "columns", "recommendations"],
  "properties": {
    "summary": {
      "type": "object",
      "properties": {
        "rowCount": { "type": "integer" },
        "columnCount": { "type": "integer" },
        "memoryUsageMB": { "type": "number" },
        "duplicateRows": { "type": "integer" },
        "missingCells": { "type": "integer" },
        "missingCellsPercent": { "type": "number" }
      }
    },
    "columns": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "name": { "type": "string" },
          "dtype": { "type": "string" },
          "nullCount": { "type": "integer" },
          "uniqueCount": { "type": "integer" },
          "stats": { "type": "object" }
        }
      }
    },
    "recommendations": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "type": { "type": "string" },
          "column": { "type": "string" },
          "suggestion": { "type": "string" },
          "impact": { "type": "string" }
        }
      }
    }
  }
}

Usage Example

javascript
{
  kind: 'skill',
  title: 'Analyze training dataset',
  skill: {
    name: 'pandas-dataframe-analyzer',
    context: {
      dataPath: 'data/train.csv',
      profileType: 'full',
      outputFormat: 'json'
    }
  }
}