I am Dr. Raymond Musyoka, a PhD-trained Biostatistician with over 20 years of experience in statistical analysis, epidemiology, and data science, supporting research across academia, public health institutions, and international organizations. My career began with hands-on experience in data management, survey implementation, and statistical support, where I was involved in designing data collection tools, developing databases, supervising data entry processes, and ensuring data quality through rigorous validation procedures. Over time, I progressed into advanced analytical roles, leading complex statistical modeling, research design, and high-impact data-driven decision-making projects. I hold a PhD in Biostatistics (University of KwaZulu-Natal, South Africa), a Master’s degree in Biostatistics, and a Bachelor of Science in Mathematics (First Class Honors). What I Do I provide expert consultation on a wide range of statistical and data science needs, including: Statistical Analysis & Modeling Regression analysis (linear, logistic, multivariate) Survival analysis (Cox models, Kaplan–Meier) Generalized Linear Models (GLM) & GAM Time series and predictive modeling Survey-weighted analysis (DHS, AIS, complex designs) Data Management & Systems Database design and development Data cleaning, validation, and quality assurance Development of coding manuals and QA workflows Oversight of data entry systems using SAS and other tools Research Design & Support Study design and methodology development Development and testing of data collection tools Experimental and survey design Statistical reporting and interpretation Publication-ready outputs Software & Tools R, SAS, Stata, SPSS, Python Power BI, Excel AI-assisted statistical analysis How I Add Value Translate complex data into clear, actionable insights Apply appropriate and rigorous statistical methods Ensure high-quality, reproducible analysis Support end-to-end research workflows Provide clear communication for non-technical stakeholders Professional Experience Highlights Supported Ministries of Health and international research institutions Contributed to national HIV/AIDS program evaluations Worked with large-scale survey data (DHS, AIS) Delivered training and capacity building in data analysis Currently contributing as an AI Training Expert in Statistics Why Work With Me I bring a unique combination of: ✔ Strong academic background (PhD level) ✔ Real-world public health experience ✔ Advanced statistical and data science skills ✔ Commitment to delivering high-quality, timely work Availability I am available for: Statistical consulting Data analysis projects Research collaboration Training and mentorship I am passionate about helping researchers and organizations achieve their objectives through data-driven solutions and would be glad to support your project.

Do you need accurate, publication-ready insights from your research data to make informed decisions? Look no further. I am Dr. Hussain, a Top-Rated 🏆 statistician/biostatistician with 100% Job Success ⭐, certified reviewer, and statistical data analyst with 10+ years of experience across academia, research, and industry – one of the few experts who truly understands the language of data and can translate it into actionable, publication-ready results. Even in a few contracts, I have consistently earned 5-star feedback and client trust, reflecting my commitment to quality and reliability. As a certified peer reviewer for Elsevier, Springer Nature, Taylor & Francis, and PLOS ONE (18+ manuscripts reviewed) and author of 15+ Q1/Q2 publications, I bring rigorous, journal-standard quality to every project. ⭐ MY AREAS OF EXPERTISE INCLUDE: • Survey & Questionnaire Design • Statistical Data Analysis: Descriptive & Inferential (t-tests, ANOVA, Chi-Square, Regression, Correlation, etc.) • Advanced Statistical Modelling: Bayesian, Multivariate, Survival, Time-Series, Meta-Analysis • Structural Equation Modelling (SEM): AMOS, SmartPLS • Machine Learning & Predictive Modelling: Python, R, TensorFlow • Detailed Interpretation of Results • Full Report Writing & Manuscript Preparation • APA 7, Harvard, and other referencing styles ✅ I have published and contributed to data analysis for research manuscripts across multiple disciplines: Biostatistics | Public Health | Medicine | Psychology | Education | Economics | Finance | Engineering | Business | Social Sciences ✅ I have expert command of the following software: IBM SPSS | STATA | SAS | R / RStudio | Python | MATLAB | Minitab | Jamovi | E-Views | Gretl | NVivo | Power BI | Mplus | Tableau | Google Sheets | Microsoft Excel (VBA/Macros) | AMOS | SmartPLS | TensorFlow | PyTorch | Jupyter Notebooks | Google Colab | GitHub | LaTeX | Overleaf | EndNote | Zotero | Mendeley 📚 SERVICES I OFFER (INCLUDING BUT NOT LIMITED TO): ★ Sample Size & Power Analysis ★ Descriptive & Inferential Statistics ★ Correlation & Multivariate Regression Analysis ★ Hypothesis Testing (Parametric & Non-Parametric) ★ Logistic, Linear, Multinomial, Poisson Regression ★ Bayesian Inference & Hierarchical Modeling ★ Factor Analysis (EFA & CFA) ★ Structural Equation Modeling (SEM) ★ Time-Series Analysis (ARIMA, GARCH, Forecasting) ★ Survival Analysis (Kaplan-Meier, Cox PH) ★ Meta-Analysis & Systematic Review (PRISMA) ★ Machine Learning (Classification, Clustering, Regression) ★ Deep Learning (CNNs, RNNs, Transformers) ★ Data Visualization (Publication-Ready Tables, Graphs, Dashboards) ★ Dissertation & Thesis Support (All Chapters) ★ Journal Article Writing & Peer Review Support ★ Course Evaluation & Assessment Design 🎓 WHAT MAKES ME DIFFERENT: ✓ Top Rated Plus on Upwork with 100% Job Success ✓ PhD Statistics – Split Program (fully funded by Govt of Pakistan) under Partner Universities (Islamic University Pakistan & University of Malaya Malaysia) ✓ 10+ years teaching & research experience at graduate level ✓ 15+ publications in Q1/Q2 journals (Elsevier, Taylor & Francis, Springer) ✓ Certified peer reviewer for 18+ manuscripts across top-tier journals ✓ 500+ students and researchers guided to successful completion ✓ 25+ software tools mastered – zero learning curve ✓ 100% original work – No AI-generated academic content. Turnitin safe. ✓ Deadline driven – On time, every time ✓ Clear, plain-language communication – Weekly updates ⭐ WHAT CLIENTS SAY: "Outstanding experience with Adil. He is extremely professional, proactive, and rigorous in his work. He clearly has expert-level skills and consistently goes the extra mile. A real pleasure to work with. Highly recommended." – Model Testing Client | ⭐ 5.0/5.0 "Adil did an excellent job with my SPSS analysis. He was professional, knowledgeable, and delivered high-quality work on time. He explained the results clearly, was responsive to my questions, and went above and beyond. Highly recommend!" – SPSS Analysis Client | ⭐ 5.0/5.0 "Adil was an excellent freelancer to work with. His handoff document was exceptionally clear, well-organized, and complete. Communication was smooth, payments were timely, and he was very responsive throughout the project. A true professional." – Systematic Review Client | ⭐ 5.0/5.0 ✍️ Feel free to get in touch, and we can discuss your project further.

I’m a dedicated Data Analyst and Visualization Expert with a passion for transforming raw data into actionable insights. Specializing in Excel, Power BI, and SQL, I deliver compelling, data-driven solutions for businesses and organizations. My mission is to provide clear, impactful results that empower strategic decisions. I thrive on solving complex data challenges, uncovering trends, and presenting findings through stunning visualizations. When I’m not analyzing data, I’m exploring new BI tools ☕📊. What I Offer Data Analysis & Modeling: Leveraging Excel and SQL for in-depth analysis, trend identification, and predictive insights. Data Visualization: Creating interactive, user-friendly dashboards and reports in Power BI to drive decision-making. Database Management: Designing and querying databases with SQL for efficient data retrieval and accuracy. Reporting & Insights: Transforming complex datasets into concise, visually engaging reports tailored for stakeholders. Industries Served: Healthcare, finance, retail, and education. Why Choose Me? With a proven track record in end-to-end data analysis, I combine technical expertise in Excel, Power BI, and SQL with a client-focused approach. My skills in data visualization and analytics deliver reliable, high-quality outcomes. Whether you need a dynamic dashboard, detailed report, or data-driven strategy, I ensure precision, clarity, and impact. I pride myself on strong communication, attention to detail, and exceeding client expectations. 🚀 As a full-time freelance Data Analyst, I’m ready to tackle your data visualization, reporting, or analytics project. Message me today to discuss your needs, and let’s create impactful insights together! 💼📈

I hold a BS in Statistics and a Master’s in Statistics, with expertise in Statistical Data Analysis and Modelling, Data Science, Quantitative Research, Machine Learning, Deep Learning, Artificial Intelligence, and Algorithmic Trading. I am also skilled in Data Engineering, including ETL pipelines, data warehousing, API integration, and building scalable data workflows. As an experienced Statistician, Data Scientist, AI Developer, Machine Learning Specialist, Python Developer, Quantitative Analyst, and Algorithmic Trading Developer, I have worked on numerous projects across Statistics, Machine Learning, Deep Learning, AI development, Quantitative Finance, and automated trading systems. I specialize in PYTHON, R, SAS, STATA, SPSS, SQL, EXCEL, Google Data Studio,Looker Studio, and Ninjatrader, with strong capability in data pipelines and cloud-based engineering tools. I also build dynamic dashboards using TABLEAU, R Shiny, and POWER BI. I am skilled in academic writing, research reporting, and producing publication-ready documents. My analytical thinking, problem-solving skills, and development experience allow me to build complex applications, research solutions, and AI-driven systems across diverse fields. I’d be happy to offer you my services—feel free to contact me for an interview.

Data Scientist & Statistician of experience in R, Python, SPSS,Excel،Power BI and SQL. I specialize in machine learning, predictive modeling, biostatistics, clustering, classification, and data visualization. R Packages: tidyverse, tidymodels, dplyr, ggplot2, caret, randomForest, glmnet, xgboost, nnet, lme4, forecast, data.table, readr, stringr, Shiny, Quarto, R Markdown and much more Python Packages: pandas, numpy, scikit-learn, statsmodels, matplotlib, seaborn, plotly, TensorFlow, Keras, PyTorch, XGBoost, LightGBM, CatBoost. Other Tools: SPSS, SAS, Minitab,Power BI, PASS, Microsoft Excel/Office, SQL, Power BI etc... I deliver clean, reproducible, and decision-ready analytics — from statistical modeling and survey analysis to machine learning pipelines and dashboards.

As a seasoned Data Scientist and Machine Learning Engineer, I specialize in building high-performance ML models powered by clean, custom scraped data. I turn unstructured web sources into actionable datasets using advanced web scraping, data extraction, and data acquisition techniques (Scrapy, BeautifulSoup, Selenium, Playwright, APIs). Expert in end-to-end workflows: designing robust ETL pipelines, data cleaning, feature engineering, and deploying scalable machine learning solutions with Python, Pandas, Scikit-learn, TensorFlow/PyTorch. I help businesses gain competitive edges through predictive modeling, recommendation systems, NLP, computer vision, and AI-driven insights from hard-to-reach data. Past projects include e-commerce price monitoring, market intelligence scraping, sentiment analysis from forums/social media, and production-grade ML pipelines that reduce costs and boost accuracy. Reliable, fast delivery, clean code, and clear communication. Let's transform your raw web data into powerful ML models and ETL pipelines, message me to discuss your project! Regards, Derrick.

🌟 Profile Overview I’m a seasoned statistician and quantitative developer with a strong academic foundation and hands-on experience in algorithmic trading, statistical modeling, and data science. 🎓 Education • PhD (ABD) in Biometry • MS in Statistics University of Illinois at Urbana-Champaign 📊 Current Role Lecturer in Business Statistics and Developer of Automated Quantitative Trading Systems 💼 What I Do I specialize in designing and implementing trading algorithms for Forex, Futures, and Crypto markets, leveraging strategies such as: • Trend Following • Momentum • Mean Reversion • Statistical Arbitrage • Breakout Strategies …and more. My work integrates advanced statistical techniques with robust programming to deliver high-performance, data-driven solutions. 🧠 Technical Expertise Programming & Tools • Languages: C#, Python, R • Statistical Packages: SAS, SPSS • Databases & Querying: SQL and related tools Modeling & Machine Learning • Regression: Linear, Nonlinear, Logistic • Hierarchical & Mixed Models • Support Vector Machines (SVM), Random Forests • Bayesian Modeling • Unsupervised Learning & Clustering • Data Visualization & Dashboarding Experimental Design • Balanced Incomplete Block Designs • Split-Plot & Repeated Measures ANOVA • Factorial & Incomplete Factorial Designs 🗣️ Communication & Collaboration I pride myself on clear communication, making complex statistical concepts accessible to diverse audiences. Whether you're a startup founder, hedge fund manager, or academic researcher, I tailor my approach to meet your needs. 🚀 Let’s Work Together If you're looking for a data-driven partner who combines academic rigor with real-world experience, I’d love to collaborate. Let’s turn your data into actionable insights and your ideas into reality.

I possess a Doctorate in Biostatistics and am adept in quantitative analysis techniques such as data manipulation, modeling, visualization, and report generation. My areas of interest include Clinical Trials, Longitudinal Data Analysis, and Big Data Analysis. Areas of Experience * Signal Processing * Statistical Data Analysis * Sample Size Calculation * Machine Learning * Big data Analysis * Clinical Trials * Longitudinal Data Analysis * Multivariate Analysis * Design of experiments * Dose-Finding * R projects * SAS projects * Data Science * Mathematics * Categorical Data Analysis * PASS * Network Meta Analysis * Meta Analysis * Power BI

Data Analyst | Data Scientist | Python | SQL | Tableau | Power BI | Machine Learning I help businesses turn data into clear insights, dashboards, and predictive models that support better decision-making. With 15+ years of experience in Data Analytics and Data Science, I work with startups and enterprises to deliver Python & SQL data analysis, Tableau and Power BI dashboards, and machine learning models that solve real business problems—not just academic ones. 🔹 Core Expertise Data Analysis: Python (Pandas, NumPy), SQL (MySQL, PostgreSQL) Business Intelligence: Tableau, Power BI, KPI dashboards, executive reporting Data Science & ML: regression, classification, model evaluation, feature engineering Statistics: hypothesis testing, A/B testing, EDA End-to-End Analytics: data extraction → cleaning → analysis → visualization → insights 🔹 What Clients Like Working With Me Business-focused, insight-driven approach Clear communication with non-technical stakeholders Clean, documented, and reusable deliverables Experience across BFSI, Healthcare, and E-commerce I can support you as a: Data Scientist Data Analyst BI / Dashboard Consultant Data Science Consultant Corporate Trainer / Mentor If you’re looking for a reliable data professional who understands both analytics and business impact, let’s discuss your project.

I am currently working as a Research Assistant in the Faculty of Medicine at Wayamba University of Sri Lanka. I completed MSc in Biostatistics at the Postgraduate Institute of Agriculture (PGIA), University of Peradeniya. My academic background and research experience enable me to provide high-quality statistical analysis and research support. I have hands-on experience in research design, questionnaire development, data management, data cleaning, statistical analysis, interpretation of results, and scientific report writing. I have worked with undergraduate and postgraduate research projects across various disciplines and can help make your research process efficient and accurate. I have experience in Structural Equation Modeling (SEM), including developing conceptual models, measurement model assessment, structural model analysis, mediation analysis, reliability and validity assessment, and interpretation of SEM results. I am proficient in the following software: IBM SPSS R and RStudio SAS Minitab Eview STATA I have experience performing statistical analyses for cross-sectional, longitudinal, panel, and time-series data, depending on the research objectives. Some of the statistical techniques I frequently perform include: One-Sample t-test Independent Samples t-test Paired Samples t-test One-way ANOVA Two-way ANOVA Chi-square Test Pearson Correlation Spearman Rank Correlation Linear Regression Multiple Linear Regression Logistic Regression Ordinal Logistic Regression Poisson Regression Negative Binomial Regression Generalized Linear Models (GLM) Mixed-Effects Models Survival Analysis Structural Equation Modeling (SEM) Exploratory and Confirmatory Factor Analysis Reliability Analysis (Cronbach's Alpha, ICC) Principal Component Analysis (PCA) Cluster Analysis Time Series Analysis In addition to statistical analysis, I can assist with: Research proposal development Questionnaire design and validation Data coding, cleaning, and preparation Data visualization and presentation Interpretation of statistical outputs Preparation of publication-ready tables and figures Thesis, dissertation, and manuscript support I am committed to delivering accurate, reliable, and well-documented statistical analyses while meeting project deadlines. My combination of research experience, statistical expertise, and strong IT skills allows me to provide comprehensive support for academic and research projects.