Blog Archives

Know your data structures!

May 7, 2017
By
Know your data structures!

Just a few days ago I stated the following on Twitter: Just reduced the runtime of an algorithm from 9 hours to 3 min. by using a different data structure… Know you data structures 🙂 #rstats — Verena Haunschmid (@ExpectAPatronum) May 1, 2017 Since my tweet has been liked and shared a lot, I thought … Continue...

Read more »

Presentation “R for Data Science”

March 18, 2017
By
Presentation “R for Data Science”

Some weeks ago I had a presentation at my work place about “R for data science” that I’d like to share with you. I’ve written the slides in R and rmarkdown and uploaded them to rpubs.com. I chose to use rmarkdown for my slides although we have great company PowerPoint templates, because I wanted to … Continue...

Read more »

Accessing MSSQL Server with R (RSQLServer with dplyr)

February 18, 2017
By
Accessing MSSQL Server with R (RSQLServer with dplyr)

Recently I have been starting to use dplyr for handling my data in R. It makes everything a lot smoother! My previous workflow – running an SQL query, storing the results as CSV, loading it in RStudio – is now history. With dplyr you can directly query data from many different databases in a very … Continue...

Read more »

Accessing your Fitbit data

September 18, 2016
By
Accessing your Fitbit data

Since I am a data junkie and bought my Fitbit Charge HR mainly because I wanted to collect and analyse data about myself, I was looking for ways to download the data to your computer. For most people the great stats overview in the app and in the online dashboard will be sufficient but some … Continue...

Read more »

Learning Club 05-07: Starting to love rmarkdown (Naive Bayes, Clustering, Linear Regression)

July 27, 2016
By
Learning Club 05-07: Starting to love rmarkdown (Naive Bayes, Clustering, Linear Regression)

I remember when I had an R course at university I was really not a fan of rmarkdown and knitr. But since I participate in a Learning Club, where people are encouraged to document and present their code, data and results, I started to love it. Prior to that I’ve always documented my assignments at the university either … Continue...

Read more »

Adding basemap.at tiles to an R leaflet plot

January 28, 2016
By
Adding basemap.at tiles to an R leaflet plot

Recently I wanted to visualise some data in a map of Austria. R Leaflet provides a pretty good looking map by default (openstreetmap.org) but I wanted to use basemap.at, which is a map for Austria and therefore probably the most accurate map available for Austria. Actually it is not very difficult but it was the … Continue...

Read more »

Use R to connect to twitter and create a wordcloud of your tweets

January 18, 2016
By
Use R to connect to twitter and create a wordcloud of your tweets

Recently I wanted to create a wordcloud of my tweets and do further analysis. In this post I am going to show you how to connect to twitter in R and how to make a wordcloud from your tweets. To follow this tutorial, you need a Twitter account. First steps in R Install required libraries … Continue...

Read more »

Sponsors

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)