الدوري الممتاز الهندي 2020

The donut torus Given a number \(s \geqslant 1\), the following map: \[ (u, v) \mapsto (x, y, z) = \frac{\Bigl(s\cos\frac{u}{s}, s\sin\frac{u}{s}, \sin v\Bigr)}{\sqrt{s^2+1}-\cos v} \] is ... Continue reading: Mapping a picture on a donut or a Hopf torus http://dlvr.it/ST8P08

The war between Russia and Ukraine has affected the global food supply other than many vital things. Primarily cereal crop products have been affected the most because the imports have been provided to the world mainly through Ukraine and Russia. Let’s check the situation we’ve mentioned for G20 ... Continue reading: Food Crisis Analysis and, Forecasting with Neural Network Autoregression http://dlvr.it/ST7CG7

Introduction Natural Language Processing (NLP) is a powerful tool in the Machine Learning landscape that can (among other things) allow users to classify sentiment and predict text. Many of recent my blogs have been about data manipulation and data engineering, so I decided change things up to look into showing ... Continue reading: RObservations #34: Using NLP with keras to understand market sentiment with LSTM networks http://dlvr.it/ST5fqc

The post How to Join Multiple Data Frames in R appeared first on Data Science Tutorials How to Join Multiple Data Frames in R?, you can find it useful to connect many data frames in R. Fortunately, the left join() function from the dplyr package makes this simple to accomplish. ... Continue reading: How to Join Multiple Data Frames in R http://dlvr.it/ST5fmB

The post How to Find Unmatched Records in R appeared first on Data Science Tutorials How to Find Unmatched Records in R?, To retrieve all rows in one data frame that do not have matching values in another data frame, use R’s anti_join() function from the dplyr package. ... Continue reading: How to Find Unmatched Records in R http://dlvr.it/ST52Ty

The post Replace NA with Zero in R appeared first on Data Science Tutorials Replace NA with Zero in R, Using the dplyr package in R, you can use the following syntax to replace all NA values with zero in a data frame. Substitute zero for any NA values. Create ... Continue reading: Replace NA with Zero in R http://dlvr.it/ST2mXf

If you’re based in the North East of England and you’re looking for a place to discuss all things R with like-minded people, then you might want to check out the North East Data Scient... Continue reading: North East Data Scientists Meetup http://dlvr.it/ST1dpn