Publications by by Dr. zhenning Jimmy xu, follow me on Twitter:
Presentation - Topic modeling
Exploring the Sugar Tax Debate on Reddit and Twitter: A Sentiment Analysis Approach Zhenning Xu 02.27.2020 Site:rpubs.com/utjimmyx 1 Research questions What sugar-tax-related topics do people discuss on Twitter and Reddit? How can we identify different sugar-related topics that people talk about? “Sin” tax toward sugary drinks - do pe...
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Presentation - Topic modeling1
Exploring the Sugar Tax Debate on Reddit and Twitter: A Sentiment Analysis Approach Zhenning Xu 02.27.2020 1 Research questions What sugar-tax-related topics do people discuss on Twitter and Reddit? How can we identify different sugar-related topics that people talk about? “Sin” tax toward sugary drinks - do people like it or not? How ...
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Fall 2019 wrapup
################################################################################ ## Course wrap-up (Fall 2019) ## by Dr. Jimmy (Zhenning) Xu, ## follow me on Twitter https://twitter.com/MKTJimmyxu ## or visit my Rpubs repository http://rpubs.com/utjimmyx #########################################################################...
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Using Cluster Analysis for Market Segmentation
R Markdown This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com. Notice: The dplyr package is not stable recently.See my Tweet about this:https://twitter.com/MKTJimmyxu/status/1253752342333153281. That said, whe...
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Avocado Pricing at Retail
R Markdown This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com. Note: this analysis was performed using the open source software R and Rstudio. Objective The objective of this basic project is to explain the pr...
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Research Design
R Markdown This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com. Research design - Basics H0- Null hypotheses use as basis for argument but has not yet proven, no difference prediction (all equal). H1 - Alternat...
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Understanding the Effectiveness of Advertising usint t-test
R Markdown This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com. #Warm-up activity for fun - can you replace my name with yours using the following functions? paste("Today is", date()) ## [1] "Today is Tue Feb 16...
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From Data to Pixels
R Markdown This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com. R kandinsky Ever heard about painted data? You can be an artist while working as a data scientist! Data Paintings is a Rstats package that turns t...
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Regression analysis - Predictive Model for Los Angeles Dodgers Promotion and Attendance
################################################################################ ## Predictive Model for Los Angeles Dodgers Promotion and Attendance (R) ## by Dr. Jimmy (Zhenning) Xu, ## follow me on Twitter https://twitter.com/MKTJimmyxu ################################################################################ In...
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