While the monotonic binning algorithm has been widely used in scorecard and PD model (Probability of Default) developments, the similar idea can be generalized to LGD (Loss Given Default) models....continue reading.
I am pleased to announce that tidytext 0.1.4 is now on CRAN! This release of our package for text mining using tidy data principles has an excellent collection of delightfulness...continue reading.
Em vários posts este mês, destaquei um novo versão do curso de estatística que oferecemos em São Paulo sobre estatística. É um curso inicial que usa R como a ferramenta...continue reading.
Sometimes, events move faster than we predict them. This is one of the things that makes statistics as much of an art as a science. Last night, Giancarlo Stanton hit...continue reading.
This post will be about implementing and investigating the running Kelly Criterion — that is, a constantly adjusted Kelly Criterion … Continue reading →continue reading.
Downloading Quarterly Financial Reports from Bovespa – Financial statements of companies traded at B3 (formerly Bovespa), the Brazilian stock exchange, are available in its website. Accessing the data for a...continue reading.
Two posts today with similar themes. Time is running out. First, time is running out for Giancarlo Stanton. His bat has been very silent this week so far. The Marlins...continue reading.
We will review another fascinating approach that marries heuristic and probabilistic methods. We will link marketing channels with a probability of a customer passing through each step of a Sales...continue reading.
We will review another fascinating approach that marries heuristic and probabilistic methods. We will link marketing channels with a probability of a customer passing through each step of a Sales...continue reading.
Yesterday and today I attended the data2day, a conference about Big Data, Machine Learning and Data Science in Heidelberg, Germany. Topics and workshops covered a range of topics surrounding (big)...continue reading.
power simulation nsim<-100tval<-rep(NA,nsim)for(i in 1:nsim){dat<-gen_fake_lnorm(nsubj=20) mfake<-lmer(log(rt)~x+(1+x|subj)+(1+x|item),dat)tval[i]<-summary(mfake)$coefficients[2,3]}## power:mean(abs(tval)>2)## [1] 0.12continue reading.
Microsoft Cognitive Services Vision API in R A little while ago I did a brief tutorial of the Google Vision API using RoogleVision created by Mark Edmonson. I couldn’t find...continue reading.
The regular Major League Baseball season is coming to an end. Next week, we move into the playoffs and eventually the World Series. However, we have a nice statistical modeling...continue reading.
tl;dr You can now do mediation and moderation analyses in jamovi and R with medmod Use medmod for an easy transition to lavaancontinue reading.
There are couple of interesting findigns while I was trying to get maximum reward for the hooper. 1- Adam optimizer works much better than gradient descent. The following plots shows...continue reading.
In the post (https://statcompute.wordpress.com/2017/06/15/finer-monotonic-binning-based-on-isotonic-regression), it is shown how to do a finer monotonic binning with isotonic regression in R. Below is a SAS macro implementing the monotonic binning with the...continue reading.
ElephantSQL ElephantSQL offers a free instance of Postgresql, with a limit of 20 MB and 5 concurrent connections. For example, you can upload a shiny application that depends on data...continue reading.
The United States Patent and Trademark office (USPTO) provides immense amounts of data (the data I used are in the form of XML files). After coming across these datasets, I...continue reading.
The United States Patent and Trademark office (USPTO) provides immense amounts of data (the data I used are in the form of XML files). After coming across these datasets, I...continue reading.
Exploratory Data Analysis of Tropical Storms in R The disastrous impact of recent hurricanes, Harvey and Irma, generated a large influx of data within the online community. I was curious...continue reading.
Artificial intelligence / Deep neural networks / Keras / R / R News / Spark
April 22, 2024
GIS / R / R News / Shiny / Visualization
Interactive visualization of geospatial data with R Shiny
April 17, 2021
