Cohort analysis with R – Retention charts
When conducting Cohort Analysis, one of the most important measures is Customer Retention Rate. I will share a few ideas for visualizing this parameter in this postWhen we spend more...continue reading.
Category: R News
Measurement, Summary, and Methodological Variation in RNA-sequencing in Statistical Analysis of Next Generation Sequencing Data
This article is originally published at https://lcolladotor.github.io/ Thanks for visiting r-craft.org This article is originally published at https://lcolladotor.github.io/ Please visit source website for post related comments.continue reading.
Pitfall: Did You Really Mean to Use matrix(nrow, ncol)?
Are you a good R citizen and preallocates your matrices? If you are allocating a numeric matrix in one of the following two ways, then you are doing it the...continue reading.
User Request – Disable Limiting Region
The other week a user of ggtern ran into a problem where they wanted to use the limit_tern(…) functionality, however there were a few marginal points / paths that extended...continue reading.
Brazil’s Host Advantage
If history can tell us anything about the World Cup, it’s that the host nation has an advantage of all other teams. Evidence of this was presented last night as...continue reading.
Concerns that can deter potential orders for developing Shiny apps
A few weeks ago I was invited to a meeting where a group was interested in exploring options for replacing their contract with a propriety software. They invited me because...continue reading.
Cohort analysis with R – “layer-cake graph” (part 2)
We will continue to exploit a great idea of ‘layer-cake’ graph for Cohort analysis Continue to exploit a great idea of ‘layer-cake’ graph. If you liked the approach I shared in the previous topic,...continue reading.
ggtern 1.0.3.2 on CRAN
An update to ggtern, version 1.0.3.2, is now available on CRAN! This version includes a number of bug fixes: Added convenience functions, and global options for modifying the length of...continue reading.
Cohort analysis with R – “layer-cake graph”
We will study a pretty helpful visualization for Cohort Analysis that is one of the most powerful and demanded techniques available to marketers for assessing long-term trends in customer retention and...continue reading.
Performance: captureOutput() is Much Faster than capture.output()
The R function capture.output() can be used to “collect” the output of functions such as cat() and print() to strings. For example, > s <- capture.output({ + cat("Hello\nworld!\n") + print(pi)...continue reading.
The ivlewbel Package. A new way to Tackle Endogenous Regressor Models.
In April 2012, I wrote this blog post demonstrating an approach proposed in Lewbel (2012) that identifies endogenous regressor coefficients in a linear triangular system. Now I am happy to...continue reading.
Twitter sentiment analysis based on affective lexicons with R
We will study another dictionary-based approach that is based on affective lexicons for Twitter sentiment analysis Continue to dig tweets. After we reviewed how to count positive, negative and neutral...continue reading.
Twitter sentiment analysis with R
We will study a dictionary-based approach for Twitter sentiment analysisRecently I’ve designed a relatively simple code in R for analyzing Twitter posts content via calculating the number of positive, negative and...continue reading.
Object Oriented Programming with R: An example with a Cournot duopoly
I started reading Applied Computational Economics & Finance by Mario J. Miranda and Paul L. Fackler. It is a very interesting book that I recommend to every one of my...continue reading.
Simple mortgage calculator
Have you ever thought of borrowing some money? A common case is when you have to borrow money for buying a house, which is called a mortgage. Wikipedia (‘Mortgage loan’...continue reading.
MPOB’s Malaysian crude palm oil production data. Another fetching thing with Python and BeautifulSoup
We needed up-to-date Malaysian crude palm oil production data. The MPOB provides such data on its website. It remained to write some ugly but somewhat reliable snippet code in Python, the latter...continue reading.
Git for research
This article is originally published at https://lcolladotor.github.io/ Thanks for visiting r-craft.org This article is originally published at https://lcolladotor.github.io/ Please visit source website for post related comments.continue reading.
IV Estimates via GMM with Clustering in R
In econometrics, generalized method of moments (GMM) is one estimation methodology that can be used to calculate instrumental variable (IV) estimates. Performing this calculation in R, for a linear IV...continue reading.
Plotting forward curves with R
We wanted to have an idea of the general form of the forward curve for London ICE gasoil futures contracts along the year. The R code below plot a forward curve...continue reading.
Fast Annotation-Agnostic Differential Expression Analysis
This article is originally published at https://lcolladotor.github.io/ Thanks for visiting r-craft.org This article is originally published at https://lcolladotor.github.io/ Please visit source website for post related comments.continue reading.
