How do I use Python or R scripts within Power BI for advanced statistical analysis

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How do I use Python or R scripts within Power BI for advanced statistical analysis?
I want to integrate Python or R scripts in Power BI to perform advanced statistical analysis, such as regression modeling, clustering, or forecasting. The results should be seamlessly embedded into Power BI reports for visualization. What are the best practices for executing Python or R scripts in Power BI while ensuring performance and compatibility?

Mar 24 in Power BI by Evanjalin
• 28,990 points
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1 answer to this question.

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To integrate Python or R scripts in Power BI for advanced statistical analysis, follow these best practices:

1. Enable Python or R in Power BI

  • Go to: File > Options and settings > Options > Python scripting / R scripting

  • Install Python (Anaconda recommended) or R with necessary packages:

    • Python: pandas, numpy, scikit-learn, matplotlib, etc.

    • R: ggplot2, dplyr, forecast, caret, etc.

  • Set the correct Python/R home directory in Power BI settings.

2. Use Python or R in Power Query (Transform Data)

  • In Power Query, select Transform Data > Run Python Script / Run R Script.

  • Example for Python (Regression Analysis):

import pandas as pd
from sklearn.linear_model import LinearRegression

# Load Power BI dataset
dataset = dataset.dropna()  # Handle missing values

# Define model
X = dataset[['Feature1', 'Feature2']]
y = dataset['Target']
model = LinearRegression().fit(X, y)

# Predict and return results
dataset['Prediction'] = model.predict(X)

Example for R (Clustering Analysis):

library(dplyr)
library(cluster)

# Remove missing values
dataset <- na.omit(dataset)

# Perform k-means clustering
set.seed(123)
kmeans_result <- kmeans(dataset[, c("Feature1", "Feature2")], centers=3)

# Append cluster labels
dataset$Cluster <- as.factor(kmeans_result$cluster)
  • Click OK, and Power BI will return the modified dataset with predictions/clusters.

3. Visualize Results in Power BI

  • Use Tables, Charts, or Custom Visuals to display Python/R-generated insights.

  • For advanced visualizations:

    • Insert Python Visual (Insert > Python Visual)

    • Example for Python (Forecasting Plot):

import matplotlib.pyplot as plt
plt.plot(dataset['Date'], dataset['Prediction'], label="Forecast")
plt.legend()
plt.show()

4. Ensure Performance & Compatibility

  • Avoid large datasets—Power BI limits script processing to 30 minutes and 500MB RAM.

  • Run heavy computations externally (Azure ML, Databricks, SQL with ML Services).

  • Schedule Power BI dataset refresh for periodic updates in Power BI Service.

answered Mar 24 by anonymous
• 28,990 points

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