Greg Martin

Unlock diverse career paths in health systems! Explore roles like epidemiologist, health economist, public health specialist, and more. Your expertise can drive innovation, equity, and pandemic preparedness. #HealthJobs #PublicHealth #Career

The health sector offers diverse careers—epidemiologists, health economists, public health specialists, medical officers, researchers, project managers, data analysts, communication officers, policy advisors, lab technicians & more. #HealthCareers #PublicHealth #Innovation

Thinking of a career in public or global health? The World Health Organization is looking for subject matter experts and those with technical skills like epidemiology or health economics. Explore their opportunities! #PublicHealth #GlobalHealthJobs

Transforming volcano data from a wide matrix to a long data frame is key for visualization. Using `pivot_longer` and `mutate` creates a clean dataset for heatmaps, mapping variables like elevation to fill aesthetics in `ggplot`. #DataWrangling #RStats

Transforming volcano data from a wide matrix to a long data frame is key for visualization. Using `pivot_longer` and `mutate` creates a clean dataset for heatmaps, mapping variables like elevation to fill aesthetics in `ggplot`. #DataWrangling #RStats

Unlock the power of heat maps! Learn how to transform matrix data into a long format, making it easier to visualize complex information like volcano topography. It's simpler than you think! #DataVisualization #Heatmaps #DataScience

Understanding odds ratios: A value of 1 means no effect. Higher values suggest causation, lower values suggest protection. A 95% confidence interval including 1 means the result isn't statistically significant. #StatsTips #DataScience

Case-control studies can't directly measure risk, but they can use odds ratios. Understand the difference between risk and odds, and how to interpret an odds ratio of 21. It's not about 21x risk, but about the likelihood of exposure given the outcome. #Epidemiology #StudyDesign

Unlock the power of heat maps! Learn to transform raw data into stunning visualizations with RStudio. This guide covers data wrangling into a long format and creating impactful heat maps using ggplot2. #RStats #DataViz

Chi-square tests compare two categorical variables (e.g., male/female, short/medium/tall), unlike t-tests that use one numeric. They show if observed patterns are significant or due to chance—reject the null if results are unlikely. #Statistics #DataAnalysis

Unlock R's full potential with packages! Install them easily and expand your data analysis toolkit. Learn how to select specific variables like name, species, and any color-related fields for focused analysis using intuitive functions. #RStats #DataScience

Unlock free resources on learnmore.com! Learn how to use t-tests and ANOVAs to analyze data and understand the probability of your sample representing the wider population. #Statistics #DataAnalysis

Packages expand R's vocabulary, adding functions and sometimes data. Install with `install.packages('name')`. Tidyverse loads a suite of tools. Select key variables easily with dplyr's human-like syntax. #RStats #DataScience

R Studio has 4 quadrants: source, console, environment, and files/plots/help. Create a file to write code, save it, and access it in your working directory. Use # to comment code. #RStudio #CodingTips

P-values can be confusing! This video breaks down the core principles of statistical testing, explaining the null hypothesis, alpha values, and how to interpret your results. #StatsTips #DataAnalysis

Got a research question but no time to survey everyone? Learn how sampling and p-values can help you draw conclusions about the wider population. #statistics #research #Statistics #Research

Connect to ChatGPT with chatR! First, grab your API key. Then, select your model in the add-ins. Check out the free cheat sheet for setup! #ChatGPT #chatR #API

To connect chatR to ChatGPT, you need an API key. Get it from OpenAI after setting up an account and payment method. Use the usethis package in RStudio to input your key and restart. #ChatGPT #RStudio

With mutually exclusive events, like rolling a 2 or 3, the probability of both happening is zero. Conditional probability: what's the chance of A given B? #Probability #Math

Code with AI in RStudio! I explore 3 ways to use AI for coding, including the chatR package. Learn how to install it, ask questions, generate code, and cut/paste. Debugging will never be the same! #RCoding #AIcoding