Tag: data science

Feed: R-bloggers. Author: R Views. Greg Wilson is a data scientist and professional educator at RStudio. As a newcomer to R who prefers to read paper rather than pixels, I’ve been working my way through a more-or-less random selection of relevant books over the past few months. Some have discussed topics that I’m already familiar with in the context of R, while others have introduced me to entirely new subjects. This post describes four of them in brief; I hope to follow up with a second post in a few months as I work through the backlog on my desk ... Read More

Feed: R-bloggers. Author: Rsquared Academy Blog. We are pleased to introduce the descriptr package, a set of tools forgenerating descriptive/summary statistics. Installation # Install release version from CRAN install.packages("descriptr") # Install development version from GitHub # install.packages("devtools") devtools::install_github("rsquaredacademy/descriptr") Shiny App descriptr includes a shiny app which can be launched using ds_launch_shiny_app() or try the live version here. Read on to learn more about the features of descriptr, or see thedescriptr website fordetailed documentation on using the package. Data We have modified the mtcars data to create a new data set mtcarz. The onlydifference between the two data sets is related ... Read More

Feed: R-bloggers. Author: R on Gianluca Baio. As I posted recently, I’m involved in a couple of events, later this summer: our annual Summer School and the new(er) tradition of the R for HTA workshop. I have to say that I’m very happy about how things are proceeding for both of them. The summer school has been first advertise a few months back (I’ve posted on the blog, but we’ve also tried to reach other relevant mailing lists and groups, such as the HTA agencies in the EUnetHTA Network). And the dancefloor is quickly filling — there’s been a surge ... Read More

Feed: R-bloggers. Author: free range statistics - R. There was a flurry of activity in the last couple of days on Twitter and the blogosphere, most notably Thomas Lumley’s excellent Stats Chat, relating to whether there is a pro-government bias in surveys of New Zealand voting intention in the summer. As the analysis I’ve seen used my nzelect R package, this motivated me to update it for recent polls. The nzelect update nzelect hasn’t been updated on CRAN for some time, because about a year ago I made some major changes to the data model for the historical election results ... Read More

Feed: All - O'Reilly Media. Author: Ben Lorica, Paco Nathan. Honeycomb (source: Pixabay) Looking to leverage AI in your organization? Don't miss the Business Summit at the AI Conference in New York, April 15–18, 2019. Register before March 1 to save with Early Price. Download our new free report, "AI Adoption in the Enterprise," to discover how companies are planning and prioritizing AI projects in practice. Recently, O’Reilly Media published AI Adoption in the Enterprise: How Companies Are Planning and Prioritizing AI Projects in Practice, a report based on an industry survey. That was the third of three industry surveys conducted in ... Read More

Feed: R-bloggers. Author: John Mount. To make getting started with rquery (an advanced query generator for R) easier we have re-worked the package README for various data-sources (including SparkR!). Here are our current examples: For the MonetDBLite the query diagrammer shows a repeated calculation that we decided was best to leave in. And the RSQLite diagram shows the consequences of replacing window functions with joins. Related To leave a comment for the author, please follow the link and comment on their blog: R – Win-Vector Blog. R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: Vincent Granville. Monday newsletter published by Data Science Central. Previous editions can be found here. The contribution flagged with a + is our selection for the picture of the week. To subscribe, follow this link.   Announcement Learn why DataRobot is included for the first time as a Visionary in the 2019 Gartner Magic Quadrant for Data Science and Machine Learning Platforms. Access the report to: Get current insight on the data science and machine learning market See how augmented data science capabilities compare to traditional approaches Make an informed decision platform that’s best ... Read More

Feed: Neo4j Graph Database Platform. Author: Jocelyn Hoppa. Editor’s Note: This presentation was given by Irene Iriarte-Carretero at GraphConnect San Francisco in October 2016.Presentation SummaryGousto is a UK-based recipe box service that uses Neo4j to map recipe ontologies so it can provide more personalized recommendations to customers. It all starts with the customer data journey, and all the places along the way that data collection and analysis can help improve efficiencies in the areas of marketing, forecasting, warehouse distributing, and product allocation. Customer personalization plays an extremely important role in the company’s business model for a simple reason: providing relevant ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: ajit jaokar. This blog is a part of the learn machine learning coding basics in a weekend . We recommend the book Python Data Science Handbook by Jake VanderPlas There are four main libraries in Python that you need to know: numpy, pandas, mathplotlib and sklearn The Python built-in list type does not allow for efficient array manipulation. The NumPy package is concerned with manipulation of multi-dimensional arrays. NumPy is at the foundation of almost all the other packages covering the Data Science aspects of Python. From a Data Science perspective, ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: Capri Granville. This article is a solid introduction to statistical testing, for beginners, as well as a reference for practitioners. It includes numerous examples as well as illustrations and definitions for concepts such as rejecting the null hypothesis, one sample hypothesis testing, P-values, critical values, and Bayesian hypothesis testing. It has references to additional topics, such as  What is Ad Hoc Testing? What is a Rejection Region? What is a Two Tailed Test? How to Decide if a Hypothesis Test is a One Tailed Test or a Two Tailed Test. How to ... Read More