useR 2015 and htmlwidgets

I’ve been wondering if this year’s useR conference foreshadowed some gigantic groundbreaking change in the world of R. The previous useR conference was a sort of catalyst for dplyr package and operator %>%. The profession (especially from California)…

deepsense.io partners with Hortonworks after participation at Hadoop Summit North America

deepsense.io partners with Hortonworks after participation at Hadoop Summit North America

deepsense.io and Hortonworks, a leader in the Enterprise Hadoop Solutions Industry, agreed on establishing a technology partnership and plan to expand it this year.

Sapkowski, Dukaj and the wikipediatrend package

Sapkowski, Dukaj and the wikipediatrend package

Recently I tested a quite nice package for R: wikipediatrend (available on CRAN). With just a few lines of code, it can easily download and visualize daily wikipedia page views statistics. Great package, so we are going to take a closer look. I’ve just finished Season…

archivist 1.5

archivist 1.5

Archivist is an R package for object management (storing, sharing, searching). I am going to present it on useR conference next week (hope I can meet some of you in Aalborg). Below you will find two coolest (imho) features implemented in the version 1.5 of archivist.

Shiny, polls and interactive ggplot2

Shiny, polls and interactive ggplot2

Today we will use ggplot2 to recreate the diagrams presenting support in voting intention polls conducted before presidential elections. The story behind is interesting so let’s see it again. Yesterday RStudio has released a new version of shiny. Version 0.12 comes…

Data visualization vs. information management

Data visualization vs. information management

Yesterday I had a presentation ‘Data visualization vs. information management’. The core of the presentation were two examples which I present below. The punch line comes down to a simple statement: It is not enough to present data graphically; its presentation must…

deepsense.io announces members of Scientific Advisory Board

deepsense.io announces members of Scientific Advisory Board

deepsense.io has just revealed who will support it within the Scientific Advisory Board. The think tank is created of people related to data analysis, working on various scientific and commercial projects all over the world. Among the members there are names with particularly huge academic output, like Jan Madey and Krzysztof Diks, as well as their students, finalists of informatics olympiads.

deepsense.io premiere: New Polish project to be presented to the world in June in the U.S.A.

deepsense.io premiere: New Polish project to be presented to the world in June in the U.S.A.

deepsense.io is a startup supported by CodiLime, a growing Polish software company. The main project being developed by the best programmers Poland has to offer is DS Studio, an innovative platform for complex Big Data analysis using machine learning solutions. This is precisely what will be presented at two large IT conferences taking place in June in California: Hadoop Summit and Spark Summit.

Is there a limit to athletes' abilities in athletic running events?

Is there a limit to athletes’ abilities in athletic running events?

I’m forming a group of students and grads interested in data analysis: The MI^2 (square) Group. The name comes from the fact that we have students from MIM University of Warsaw and MINI Warsaw Technical University. We are playing with different projects and ideas…

Mice, post hoc tests and diffograms

Mice, post hoc tests and diffograms

I’ve recently worked on an interesting problem. There are two types of mice. We select three animals of each type. We want to examine an effect of given treatment on nerve cells, more specific: on their dendritic spines (small protrusions located at neurons). From…