Regression Analysis Jobs

I’m looking for help turning a messy Excel workbook into a model-ready dataset and then driving a small machine-learning workflow directly from Excel. The immediate focus is data cleaning and transformation: removing duplicates, fixing inconsistent formats, handling missing values, and reshaping tables so every column is analytically sound. Once the data is tidy, I’d like you to set up a lightweight machine learning model—classification or regression—using whichever approach fits best inside the Excel environment (Power Query + Power Pivot, the new Python in Excel feature, or an external script triggered from VBA). Key deliverables • A fully cleaned, well-structured Excel file with transformation steps saved (Power Query or documented VBA). • An opera...

I’m working on medical diagnostic data meta-analyses. Some data come from direct presentations of raw data, some from logistic-regression output, others from ROC curves, and I would like to know when it is defensible to “reverse-engineer” true-positive, false-positive, false-negative and true-negative counts from summary measures such as sensitivity, specificity or AUC or regression. Here’s what I’m looking for you to deliver: • A short, clearly written memo and/or a brief call that walks through and states whether the back-calculation is appropriate in a number of example case. I will be happy to provide additional explanation of intended methods (hsROC) and provide som examples of references or excerpts of published data that I am not sure is appropria...

I need R code to create a predictive model. Building the model will require multiple steps including several iterations of: - Mixed Meta Regression - Random Forest - Partial Least Squares (PLS) Ideal Skills: - Proficiency in R - Experience with mixed meta regression, random forest, and PLS - Strong background in predictive modeling and data analysis