RPubs will retire in June 2027. Your existing documents will stay accessible through December 31, 2031
and Connect Cloud is the recommended home for new publishing. Read the blog post
gravatar

kar_ng

KAR NG

Recently Published

Document
Life Expectancy (On Going)
Analysis of Titanic Mortality
Data manipulation, imputation, feature engineering, and machine learning algorithms (K-Nearest neightbour, random forest, and extreme-gradient boosting) were applied to clean the dataset. A final, perfectly cleaned dataset was synthesised for data visualisation to understand the trend in the tragedy.
Marketing Analytics
Length: 35 mins | EDA + Statistical Analysis + Machine Learning Prediction Techniques | Solved 9 business tasks by 18 graphs and 10 statistical methods include dummy data partitioning (train & test for RMSE & R2), stepwise model selection, MLR, multicollinearity (correlation & VIF), GLM’s binomial for logistic regression.
Cucumber: Multi-Env Latin Square Field Experiment
Length: 16 mins | Visualisation + Statistical Analysis | A multi-environment Latin Square designed trial analysed by ANOVA, Two-way ANOVA, Fully Random Model, Mixed Effect Model, and Tukey test.
Oats: Variety-Fertilizer Field Experiment
Length: 14 mins | Visualisation + Statistical Analysis | A factorial Split-plot system analysed by Shapiro-Wilk test, Levene’s test, Q-Q plot, CI plot, mixed-effect model, ANOVA and Tukey Post-hoc test.
Maize: Soil Nutrient Glasshouse Experiment (CRD)
Length: 12 mins | Visualisation + Statistical Analysis | A CRD system (8 treatments + 3 harvests) analysed by Shapiro-Wilk test, Q-Q plot, Levene’s test, Kruskal-Wallis test and Dunn’s Post-hoc test.
Brisbane Real Estate Sales 2018 - 2020
Length: 24 mins | EDA + Mapping | 320k observations and 11 variables cleaned and manipulated for EDA and mapping (choropleth, cluster, points) to find a new home for a Brisbane family.
Avocado Prices EDA & Prediction
Length: 29 mins | EDA + Forecast | 18k observations & 14 variables cleaned and manipulated for EDA, time plots, and forecasting (ETS, ARIMA) of US and Houston Avocado's prices.
Resort Hotel versus City Hotel
Length: 27 mins | EDA | 119k observations & 32 variables cleaned and manipulated to create 14 distinct graphs and statistics tables during an extensive EDA to draw insights.
Bike-Share Big Data Analysis
Length: 28 mins | EDA + Mapping | 3.7 million observations & 13 variables were cleaned and manipulated for 6 graphs, dynamic map and general statistics to convert casual riders into members.
Sugar Beets Golden vs Merlin, who is more susceptible to herbicide?
Standard Student's Two-Sample t-Test, Welch's t-Test, Paired t-Test, Wilcoxon Matched Pairs, Mann-Whitney test, Levene's test, Shapiro-wilk test.
Wheat Yield Comparison with Country-Wide Average
[One-sample Student's T-test] This report is created for showcasing or educational purpose to introduce the application of One-sample Student's T-test on the scale of one-sided and two-sided method. Data are synthesized and has been modified from publicly available source.