Publications by Alexander Ng

DATA 624 HW8 Non-linear Regression

Data 624 HW 8 (Week 11) Non-Linear Regression Alexander Ng Due 11/14/2021 Overview Exercises from Kuhn and Johnson Applied Predictive Modeling, Chapter 7 Nonlinear Regression Models. All R code is displayed at the end for clarity. Exercise 7.2 Friedman (1991) introduced several benchmark data sets created by simulation. One of these used the fol...

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Optional Assignment HW 10 Week 14 Market Basket Analysis

Data 624 HW 10 (Week 14) Recommender Systems Alexander Ng Due 12/5/2021 Overview Imagine 10000 receipts sitting on your table. Each receipt represents a transaction with items that were purchased. The receipt is a representation of stuff that went into a customer’s basket - and therefore ‘Market Basket Analysis’. That is exactly what the Gr...

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Data 620 Project 3 EDA

Data 620 PROJECT 3 EDA Alexander Ng 04/01/2022 EDA FOR PROJECT 3 We exported names_all.csv from the nltk library. This is the 2 column file of the names and genders for all samples. We add the first letter of each name as a column first_let. Proportion of Female and Male Names ## ## female male ## 0.6295317 0.3704683 Name Frequency by ...

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