Stop fiddling around with copied paths in Windows R
I work with R on both Mac OS and Windows. On Windows, you get the option to copy the path of a file or folder by holding Shift while right-clicking...continue reading.
Monthly Archive: December 2015
Joy to the World, and also Anticipation, Disgust, Surprise…
In my previous blog post, I analyzed my Twitter archive and explored some aspects of my tweeting behavior. When do I tweet, how much do retweet people, do I use...continue reading.
Time series analysis with R: Testing stuff with NetAtmo data
I’ve got a NetAtmo weather station. One can download the measurements from its web interface as a CSV file. I wanted to give time series analysis with the extraction of...continue reading.
Evaluation of time series forecasting using Spark windowing
Evaluation metrics play a critical role in machine learning ecosystem. Especially for machine learning products, evaluation metrics are like the heart beats. They show how healthy the model is and...continue reading.
Evaluation of time series forecasting using Spark windowing
Evaluation metrics play a critical role in machine learning ecosystem. Especially for machine learning products, evaluation metrics are like the heart beats. They show how healthy the model is and...continue reading.
matrixStats: Optimized Subsetted Matrix Calculations
The matrixStats package provides highly optimized functions for computing common summaries over rows and columns of matrices. In a previous blog post, I showed that, instead of using apply(X, MARGIN...continue reading.
Speeding up the Cluster Bootstrap in R
Back in January 2013 I wrote a blog post showing how to implement a basic cluster/block bootstrap in R. One drawback of the cluster bootstap is the length of time...continue reading.
Cohort analysis: Retention Rate Visualization with R
When conducting Cohort Analysis, one of the most important measures is Customer Retention Rate. I will share a few ideas for visualizing this parameter When conducting Cohort Analysis, one of...continue reading.
Ten Thousand Tweets
I started learning the statistical programming language R this past summer, and discovering Hadley Wickham’s data visualization package ggplot2 has been a joy and a revelation. When I think back...continue reading.
Not so sweet sixteen!
In the world of big data and real-time analytics, Microsoft users are still living with the constraints of the bygone days of little data and basic numeracy.If you happen to...continue reading.
