Joel M.
Guayaquil, Ecuador
100%
Job Success
Statistics/Marketing analytics aficionado.
$50.00/hr
Welcome to my Upwork Profile! My name is Joel and I'm a once and future economist masqueraded as data analyst.
R --- environment for programming and statistical computing --- is my tool. I enjoy Bayesian, Machine-learning, and time-series modeling, of tabular data. I can help you with your data-related tasks including media/marketing mix modeling, price sensitivity, attribution modeling, conjoint analysis, market basket analysis, causal inference, Anova, regression, classification, prediction, forecast, and hypothesis testing.
I can always work with a fixed price instead of hourly rate.
Core:
- R.
Data Manipulation:
- Dplyr.
Modeling:
- Stan (Bayesian).
- Tidymodels (Machine learning).
- Lavaan (EFA, CFA, SEM).
Visualization:
- Ggplot2.
- Leaflet.
Iteraction:
- Shiny.
Work history
Simple task statistics
4.65
Jan 17, 2024
-
Jan 31, 2024
Private earnings
Participate in an Academic Survey to Reflect on your Freelancing Experience – DR41
Dec 12, 2023
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Dec 14, 2023
No feedback given
Private earnings
Adding GPU option in DLM Rstan
5.00
Nov 28, 2023
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Nov 28, 2023
Private earnings
Implement multiple imputation into Bayesian logistic regression in R and Stan
5.00
Jun 18, 2023
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Jul 13, 2023
"Joel is excellent at working with researchers to find programming and statistical solutions to quantitative designs. They are exceptionally knowledgeable and very fast working. I will be working with Joel…
Private earnings
classifying the UK manifestos machine learning R
3.30
Mar 6, 2023
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Mar 13, 2023
Private earnings
Stan programmer needed: Build logistic regression model with index predictors
5.00
Dec 8, 2021
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Dec 9, 2021
"Joel was great to work with -- prompt coding and perfect deliverables! Quick, reliable, and on point."
Private earnings
Problem solving - Statistical simulation with R programming
5.00
Nov 23, 2021
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Nov 27, 2021
"Fantastic!"
Private earnings
Statistical Computing/analysis using R Markdown
5.00
Nov 19, 2021
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Nov 23, 2021
"Professional and has very good knowledge in statistics also very cooperative. Additionally, he was available and responding in short time. Really highly recommended."
Private earnings
Data Analysis with R and Stan
5.00
Oct 26, 2021
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Nov 6, 2021
"I enjoyed working with Joel! I can recommend it to other clients on the platform."
Private earnings
R Data Scientist and Evangelist for marketing data science
Sep 10, 2022
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Present
Job in progress
Private earnings
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Skills
- Logistic Regression
- Linear Regression
- Time Series Analysis
- Statistical Analysis
- Bayesian Analysis
- Tidyverse
- Structural Equation Modeling
- Factor Analysis
- Causal Inference
- Marketing Analytics