PinnedAndrea GriantiinThe StartupEuclidean Distance MatrixStep by step explanation to code a “one liner” EDM with basic algebra operations8 min read·May 9, 2020--3--3
PinnedAndrea GriantiinTowards Data ScienceCosine Similarity Matrix using broadcasting in PythonLearn how to code a (almost) one liner python function to calculate cosine similarity or correlation matrix used in data science.7 min read·Dec 7, 2020----
Andrea GriantiBiking uphill by halving the effort(Basic trigonometry concepts applied to biking uphill)4 min read·3 days ago----
Andrea GriantiSwitching Workbooks in Excel for MacThis article explains how to use shortcuts to switch between different open workbooks using Excel for Mac4 min read·Mar 8, 2023----
Andrea GriantiThe Hungarian Algorithm: The quest for the best lineup for football teamsWith football players skill data, the usage of the hungarian algorithm (also called the Munkres algorithm), combinatorics and a bit of…8 min read·May 12, 2022----
Andrea GriantiinTrading Data AnalysisLinear Regression with TA-LibUnderstanding how the Linear Regression functions in TA-Lib Python Libr6 min read·Sep 21, 2021--1--1
Andrea GriantiinThe StartupInterpreting Principal Components: Football Players Use CaseWorkflow to interpret results of PCA using a correlation matrix of football player attributes from a popular videogame8 min read·Nov 25, 2020--1--1
Andrea GriantiinTowards Data SciencePrincipal Component AnalysisStep by step intuition, mathematical principles and python code snippets behind one of the most important algorithms in unsupervised…15 min read·Oct 8, 2020--2--2
Andrea GriantiLinear Algebra and VectorsSome demonstrations, especially in the early definitions of vector operations, look simple but they hide traps that might be good to…6 min read·Sep 2, 2020--1--1
Andrea GriantiKmeans parameters in RStudio explainedThis is and articlae about understanding the input parameters and the output results of running the K Means algorithm in R Studio.7 min read·Feb 8, 2020--2--2
