Isotonic regression is a method for obtaining a monotonic fit for 1-dimensional data. Let’s say we have data such that . (We assume no ties among the ‘s for simplicity.) Informally, isotonic regression looks for such that the ‘s approximate … Continue reading →

One of the best ways to compare the characteristics of any data set is to create descriptive plots. The following R scripts have been improved to generate plots of sequence, line, and size statistics for a set of input fasta files. The example outputs have been generated from these scripts ...

Introduction Prerequisite Step-by-step guide Additional notes Introduction Few days ago, a colleague asked me how to upload some R code on GitHub in order to make it accessible to everyone. Due to the lockdown, I could not just go into his offi...

Introduction Prerequisite Step-by-step guide Additional notes Introduction Few days ago, a colleague asked me how to upload some R code on GitHub in order to make it accessible to everyone. Due to the lockdown, I could not just go into his offi...

In this post, I construct an end-to-end Apache NiFi pipeline with my R package yorkr. This post is a mirror of my earlier post Big Data-5: kNiFing through cricket data with yorkpy based on my Python package yorkpy. The  Apache NiFi Data Pipeilne  flows all the way from the source, ...

This problem was the Riddler Classic on 538 for May 15, 2020. The problem is as follows: The fifth edition of Dungeons & Dragons introduced a system of “advantage and disadvantage.” When you roll a die “with advantage,” you roll the die twice and keep the higher result. Rolling “with disadvantage” is similar, except ...

Tibbles are the modern reimagination of data frames and share many commonalities with their ancestors. The most visible difference is how tibble contents are printed to the console. Tibbles are part of the tidyverse and used for their more consistent ...

Covidfrance app was first developped beginning of April for family, friends (and myself) to automatically know every day how many cases there are in each department where they live, daily along this crisis. This app download daily csv file from french site data.gouv.fr via its api and build ...

Covidfrance app was first developped beginning of April for family, friends (and myself) to automatically know every day how many cases there are in each department where they live, daily along this crisis. This app download daily csv file from french site data.gouv.fr via its api and build ...

Linear Regression In statistics, linear regression is a linear approach to modeling the relationship between a scalar response (or dependent variable) and one or more explanatory variables (or independent variables). The relationships are modeled using linear basis functions, essentially replacing each input with a function of the input. This is ...

Linear Regression In statistics, linear regression is a linear approach to modeling the relationship between a scalar response (or dependent variable) and one or more explanatory variables (or independent variables). The relationships are modeled using linear basis functions, essentially replacing each input with a function of the input. This is ...

Returns VS Log-Returns Load the quantmod package to retrieve financial data (see tutorial on Data Acquisition in R). # load the "quantmod" package require('quantmod') Get Apple stock quotes (daily). # get quotes AAPL

Returns VS Log-Returns Load the quantmod package to retrieve financial data (see tutorial on Data Acquisition in R). # load the "quantmod" package require('quantmod') Get Apple stock quotes (daily). # get quotes AAPL