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// UserBehaviorAnalysis.js | ||
const fs = require('fs'); | ||
const _ = require('lodash'); | ||
const Chart = require('chart.js'); | ||
const { createCanvas } = require('canvas'); | ||
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class UserBehaviorAnalysis { | ||
constructor(dataFile) { | ||
this.dataFile = dataFile; | ||
this.userData = []; | ||
} | ||
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loadData() { | ||
// Load user behavior data from a JSON file | ||
const rawData = fs.readFileSync(this.dataFile); | ||
this.userData = JSON.parse(rawData); | ||
console.log("User data loaded successfully."); | ||
} | ||
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analyzeBehavior() { | ||
// Analyze user behavior to find insights | ||
const userEngagement = {}; | ||
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this.userData.forEach(user => { | ||
const { userId, actions } = user; | ||
if (!userEngagement[userId]) { | ||
userEngagement[userId] = { totalActions: 0, uniqueActions: new Set() }; | ||
} | ||
userEngagement[userId].totalActions += actions.length; | ||
actions.forEach(action => userEngagement[userId].uniqueActions.add(action)); | ||
}); | ||
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// Generate insights | ||
const insights = Object.keys(userEngagement).map(userId => ({ | ||
userId, | ||
totalActions: userEngagement[userId].totalActions, | ||
uniqueActions: userEngagement[userId].uniqueActions.size, | ||
})); | ||
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console.log("User behavior analysis completed."); | ||
return insights; | ||
} | ||
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visualizeData(insights) { | ||
// Create a bar chart to visualize user engagement | ||
const canvas = createCanvas(800, 400); | ||
const ctx = canvas.getContext('2d'); | ||
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const labels = insights.map(insight => insight.userId); | ||
const totalActions = insights.map(insight => insight.totalActions); | ||
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new Chart(ctx, { | ||
type: 'bar', | ||
data: { | ||
labels: labels, | ||
datasets: [{ | ||
label: 'Total Actions per User', | ||
data: totalActions, | ||
backgroundColor: 'rgba(75, 192, 192, 0.2)', | ||
borderColor: 'rgba(75, 192, 192, 1)', | ||
borderWidth: 1 | ||
}] | ||
}, | ||
options: { | ||
scales: { | ||
y: { | ||
beginAtZero: true | ||
} | ||
} | ||
} | ||
}); | ||
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const buffer = canvas.toBuffer('image/png'); | ||
fs.writeFileSync('user_engagement_chart.png', buffer); | ||
console.log('User engagement chart saved as user_engagement_chart.png'); | ||
} | ||
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saveInsights(insights, outputFile) { | ||
fs.writeFileSync(outputFile, JSON.stringify(insights, null, 2)); | ||
console.log(`Insights saved to ${outputFile}`); | ||
} | ||
} | ||
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// Example usage | ||
const analysis = new UserBehaviorAnalysis("user_behavior_data.json"); | ||
analysis.loadData(); | ||
const insights = analysis.analyzeBehavior(); | ||
analysis.visualizeData(insights); | ||
analysis.saveInsights(insights, "user_behavior_insights.json"); |