Data structures for longitudinal analysis: wide versus long
Learn how to create, store and reshape longitudinal data. Moving from wide to long data format and back using R.
Investigating the best ways to design and analyse longitudinal data.
Investigating measurement and selection issues with data.
Looking at new forms of social data and how to integrate them.
Looking at how we can integrate multiple modes of data.
I am an associate professor in Social Statistics at the University of Manchester.
I have a PhD in survey methodology from ISER, University of Essex and was a post-doc
at the National Centre for Research Methods.
See full CV
Can help implement advanced statistical models: segmentation, longitudinal models, machine learning, etc.
Can advise on collecting data using surveys as well as new forms of data such as Web scraping or linking multiple types of data.
I offer training in statistical modeling using a number of different statistical software. I also teach topics related to survey methodology.
I can help develop interactive dashboards using R and Shiny.
Learn how to create, store and reshape longitudinal data. Moving from wide to long data format and back using R.
Great conversation with Leanpub co-founder Len Epp for the Frontmatter podcast about my background, survey research and longitudinal data analysis.
Learn how to explain change in time using time constant predictors using the multilevel model. Examples with real data and R code
Please feel free to contact me for: