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Ryan Nolan

Ryan is a Data Scientist at a fintech company, where he focuses on fraud prevention in underwriting and risk. Before that, he worked as a Data Analyst at a tax software company. He holds a degree in Electrical Engineering from UCF.

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Python

Python tuples

June 16, 2025 Ryan Nolan No comments yet

we are going to be looking at Python Tuples. Some characteristics of tuples are: Tuple data never change.Tuples are used to store multiple items in a single variable.Tuples are ordered and unchangeable.Since tuples are indexed, they can have items with the same value.  https://youtu.be/2LV2T7KLJaI we start by creating a tuple called “tuple1”. Notice the type of […]

Python

Python While Loops

June 16, 2025 Ryan Nolan No comments yet

We are going to be looking at the While loop in python. The while loop in python is a control flow statement that repeatedly executes a block of code as long as a specified condition is true. Example 1 Basic While Loop Here, we are using the while loop to print numberd from 1 to […]

Linear Algebra

eigenanalysis Python

June 15, 2025 Ryan Nolan No comments yet

Example from slides 3×3 Example

Python

Shapiro-Wilk Test Python

June 15, 2025 Ryan Nolan No comments yet

#Uniform Example General #Example with a Paired T Test

Python

mann-whitney u test python

June 15, 2025 Ryan Nolan No comments yet

#similiar to t test for independent samples#that t test looks at the mean #mann-whitney u loks at rank sum difference#sort from smallest to largest (smallest rank 1 largest last rank)#example rank group 1 sum 36 rank group sum 2 42 #confirm data is not normally distributed #write null and alternative hypothesis#The Mann-Whitney U Test is […]

Statistics

Spearman Rank Correlation

June 15, 2025 Ryan Nolan No comments yet

Spearman Rank Correlation [Simply explained] Example 2 Fast wth scipy

Python

One-Way ANOVA

June 15, 2025 Ryan Nolan No comments yet

https://youtu.be/e0lum-6vuw4#Use ANOVA to compare the means of three or more groups.#Ensure the assumptions of ANOVA are satisfied before applying the test. #One Way#Independent Variable: Only one factor is analyzed (e.g., different treatments or conditions).#Testing the effect of different diets (Diet A, Diet B, Diet C) on weight loss. Here, the diet is the single factor […]

Statistics

python covariance matrix

June 12, 2025 Ryan Nolan No comments yet

Example 1 Manual #The positive value of 3.6 indicates that the prices of Stock A and Stock B tend to move in the same#direction. When the price of Stock A increases, the price of Stock B also tends to increase,#and vice versa. Example 2 Numpy Sample Covariance Example 4 Pandas Sample – No Option Example […]

Statistics

python skewness of distribution

June 12, 2025 Ryan Nolan No comments yet
Statistics

Law of Large Numbers Python

June 12, 2025 Ryan Nolan No comments yet

Example 1 Coin Flips (Bernoulli Distribution) #If we repeat the coin flip multiple times, the sum of these Bernoulli trials follows a#Binomial distribution. However, when looking at a single flip, it’s simply a Bernoulli distribution Example 2 Data Science Salaries (Normal Distribution)

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