Instacart - a grocery ordering and delivery app are aiming at making it easy to fill your storeroom and refrigirator with your favorites food, vegetables and fruits whenever you need them. After selecting products through the Instacart app, personal shoppers review your order and do the in-store shopping and delivery for you. Instacart is challenging the data science community to use this anonymized data on customer orders over time to predict which previously purchased products will be in a user’s next order.

The graphical image below clearly shows the most frequent words used by our seating President - Nana Akufu-Addo during his inaugural speech on the 7th of January 2017 The full speech can be found in the link below. I used an R package to scrape the speech from the web (myjoyonline.com) and wrote a function to create the word cloud. The full reproducible code can be found here url <- "http://www.

Most companies would love to keep their valuable employees for a very long period of time, unfortunately this is not the case. Many employees walk off the door with very short or no notice, surpervisors are also not able to quickly anticipate these actions to revert them. If employers can anticipate employees desire to leave, they would be better prepared to curb any negative outcome it would have on the company.

Introduction In this case study, we are going to explore the processes involved in a typical data mining task. When building a predictive model, there are some common problems you are likely to meet in your data - problems such as missing values, imbalanced classes, un-informative attributes and so on. Here we shall look at some proven techniques for dealing with such problems and many other important guidelines. We shall make an attempt to understand some functions that can make your life easier when working on projects in r

R Markdown This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com. You can embed an R code chunk like this: summary(cars) ## speed dist ## Min. : 4.0 Min. : 2.00 ## 1st Qu.:12.0 1st Qu.: 26.00 ## Median :15.0 Median : 36.00 ## Mean :15.4 Mean : 42.98 ## 3rd Qu.