No articles match
Building a Live Market Dashboard with Shiny27 days ago
Overview | Required Packages | 1. Dashboard Anatomy | 2. Designing the User Interface | 3. Reactive Data Layer | 4. Quote Cards | 5. Price History Chart | 6. Minimal Reproducible Example | 7. Summary | 8. Going Further
Comparing a Portfolio of Stocks27 days ago
Overview | Required Packages | 1. Fetching Prices for Multiple Tickers | 2. Normalizing Prices for Comparison | 3. Plotting Side-by-Side with ggplot2 | 4. Minimal Reproducible Example | 5. Summary | 6. Going Further | Keep only symbols that Yahoo recognizes
Event Study: Earnings Announcements and Price Reactions27 days ago
Overview | Required Packages | 1. Define Events and Fetch Windows | 2. Compute Abnormal Returns | 3. Daily Abnormal Returns Around One Announcement | 4. Average CAR Across All Events | 5. Reading the Results | 6. Minimal Reproducible Example | 7. Summary | 8. Going Further
Fundamental Analysis and Stock Screening27 days ago
Overview | Required Packages | 1. Downloading Financial Statements | Income Statement | Cash Flow Statement | Balance Sheet | 2. Computing Profitability & Solvency Ratios | 3. Valuation Measures Across Peers | 4. Multi-Factor Stock Screening Scorecard | 5. Visualizing Peer Comparisons | Operating Margin Trends | Valuation vs. Operating Profitability | 6. Minimal Reproducible Example | 7. Summary | 8. Going Further
Related-Symbol Recommendations and Technical Insights27 days ago
Overview | Required Packages | 1. Related-Symbol Recommendations | 2. The Technical Insights Snapshot | 3. Company Scorecard vs. Sector | 4. Research Rating and Target Price | 5. Comparing Related Symbols Across a Watchlist | 6. Minimal Reproducible Example | 7. Summary | 8. Going Further
Your First Stock Analysis with yahoofinancer27 days ago
Overview | Required Packages | 1. Download Historical Stock Prices | Understanding the Data Columns | 2. Compute a 50-Day Moving Average | 3. Visualize Price and Trend with ggplot2 | 4. Minimal Reproducible Example | 5. Summary | 6. Going Further
Currency Conversion and Forex Data1 months ago
Overview | Required Packages | 1. Discovering Supported Currencies | 2. Fetching Historical Exchange Rates | 3. Comparing Two Pairs | 4. Plotting GBP/USD vs EUR/USD | 5. Minimal Reproducible Example | 6. Summary | 7. Going Further
yahoofinancer Cookbook: 15 Practical Recipes1 months ago
Overview | Required Packages | 1. Download Historical Equity Prices | Variations & Tips | 2. Batch Download Multiple Tickers | 3. Intraday Price Series & Timeframes | 4. Real-Time Market Overview & Regional Filtering | 5. Download Benchmark Index History | 6. Historical Currency & Forex Conversions | 7. Validate Ticker Symbols Before Pipelines | 8. Calculate Daily Percentage Returns | 9. Multi-Asset Return Correlation Matrix | 10. Compute Moving Averages & Trend Crossovers | 11. Calculate Historical & Maximum Drawdown (MDD) | 12. Calculate Stock Beta & CAPM Alpha | 13. Portfolio Cumulative Returns & Wealth Index (Growth of $10,000) | 14. Calculate Sharpe Ratio & Risk-Adjusted Metrics | 15. Compute Bollinger Bands & Volatility Envelopes
A Short Introduction to the blorr Package2 years ago
Introduction | Installation | Libraries | Data | Bivariate Analysis | Weight of Evidence & Information Value | Plot | Multiple Variables | Stepwise Selection | Model | Selection Summary | Regression Output | Using Model | Using Formula | Model Fit Statistics | Single Model | Model Validation | Confusion Matrix | Hosmer Lemeshow Test | Gains Table & Lift Chart | Lift Chart | ROC Curve | KS Chart | Decile Lift Chart | Capture Rate by Decile | Lorenz Curve | Residual & Influence Diagnostics | Influence Diagnostics | Leverage Diagnostics | Fitted Values Diagnostics
Introduction to inferr2 years ago
One Sample t Test | Example | Paired t test | Examples | Two Independent Sample t Test | One Sample Test of Proportion | Two Sample Test of Proportion | Using Variables | Use Grouping Variable | Using Calculator | One Sample Variance Test | Two Sample Variance Test | Binomial Probability Test | ANOVA | Chi Square Goodness of Fit Test | Continuity Correction | Chi Square Test of Independence | Levene's Test | Cochran's Q Test | McNemar Test | Runs Test for Randomness
RFM - Introduction3 years ago
Introduction | Data | RFM Score | Segments | Segmented Customer Data | Segment Summary | Segmentation Plot | Segment Summary Plot | Revenue Distribution
Variable Selection Methods3 years ago
Introduction | All Possible Regression | Best Subset Regression | Stepwise Selection | Model | Model specification | Forward selection | Backward elimination | Criteria | Include/exclude variables | By name | By index | Standardized output | Visualization | Verbose output | Progress | Hierarchical selection
Loading Screens3 years ago
Alerts and Notifications3 years ago
Details
Measures of Influence4 years ago
Introduction | Cook's D Bar Plot | Cook's D Chart | DFBETAs Panel | DFFITS Plot | Studentized Residual Plot | Standardized Residual Chart | Studentized Residuals vs Leverage Plot | Deleted Studentized Residual vs Fitted Values Plot | Hadi Plot | Potential Residual Plot
Collinearity Diagnostics, Model Fit & Variable Contribution7 years ago
Collinearity Diagnostics | VIF | Tolerance | Condition Index | Model Fit Assessment | Residual Fit Spread Plot | Part & Partial Correlations | Correlations | Zero Order | Part | Partial | Observed vs Predicted Plot | Lack of Fit F Test | Diagnostics Panel | Variable Contributions | Residual vs Regressor Plots | Added Variable Plot | Residual Plus Component Plot
Heteroscedasticity7 years ago
Introduction | Consequences of Heteroscedasticity | Bartlett Test | Use grouping variable | Using variables | Breusch Pagan Test | Use fitted values of the model | Use independent variables of the model | Use independent variables of the model and perform multiple tests | Bonferroni p value Adjustment | Sidak p value Adjustment | Holm's p value Adjustment | Score Test | Specify variables | F Test
Introduction to olsrr7 years ago
Introduction | Regression | Residual vs Fitted Values Plot | DFBETAs Panel | Residual Fit Spread Plot | Breusch Pagan Test | Collinearity Diagnostics | Stepwise Regression | Variable Selection | Plot | Stepwise AIC Backward Regression
Residual Diagnostics7 years ago
Introduction | Residual QQ Plot | Residual Normality Test | Residual vs Fitted Values Plot | Residual Histogram
Continuous Data8 years ago
Introduction | Data | Data Screening | Summary Statistics | Frequency Distribution | Histogram | Auto Summary | Group Summary | Box Plot | Multiple Variables | Combination of Categories | Multiple Variable Statistics | Measures | Measures of Location | Measures of Variation | Measures of Symmetry | Percentiles | Extreme Observations
Media8 years ago
Shiny App Demo
Categorical Data8 years ago
Introduction | Data | Cross Tabulation | Grouped Bar Plots | Stacked Bar Plots | Proportional Bar Plots | Frequency Table | Multiple One Way Tables | Multiple Two Way Tables
Visualization8 years ago
Introduction | Data | Continuous Data | Histograms | Density Plots | Box Plots | Scatter Plots | Categorical Data | Bar Plot | Stacked Bar Plot | Grouped Bar Plot | Grouped Box Plots
Introduction to rbin8 years ago
Introduction | Manual Binning | Bins | Plot | Dummy Variables | Factor Binning | Combine Levels | Create Bins | Quantile Binning | Equal Length Binning | Winsorized Binning
Exploring Distributions8 years ago
Normal Distribution | Distribution Shape | Input | Output | Percentiles | Calculate and visualize quantiles out of given probability. | Probabilities | Calculate and visualize probability from a given quantile | Binomial Distribution | Calculate and visualize quantiles out of given probability | Chi Square Distribution | Calculate quantiles out of given probability | Probability | Calculate probability from a given quantile. | F Distribution | t Distribution