Data Analysis with Microsoft Excel: Tables

Auf ambassadorbase.at ist mein Artikel auf Deutsch verfügbar. In my job and my studies I recently finished I work with lots of different data sources and you will also meet all of them throughout your career as a data scientist. Data can be given to you as an SQL dump, XML files and many other … Continue reading Data Analysis with Microsoft Excel: Tables

Mit “Shariff” datenschutzkonforme Social Media Buttons einbinden

Dass Facebook und Co. Userverhalten mit den Like- & Share-Buttons tracken, hat mich immer schon gestört, aber halt nicht genug um auf ein Plugin zu verzichten, das mir automatisch alle möglichen Social Media Buttons einbindet. Kürzlich ist es zu einem Sieg für Verbraucherschützer gekommen (zeit.de berichtete): Wer einen “lauschenden” Facebook-Button einbindet, muss seine Nutzer darüber … Continue reading Mit “Shariff” datenschutzkonforme Social Media Buttons einbinden

Deriving the Predicted Residual Sum of Squares Statistic

Recently I was looking into measures to evaluate a regularized least squares model. One thing I would have liked was cross-validation to be able to compare different models. When researching possibilities, I discovered PRESS (Predicted Residual Sum of Squares Statistic). The main resources I used to study the subject are: [1] Adrien Bartoli: Maximizing the … Continue reading Deriving the Predicted Residual Sum of Squares Statistic

Use rvest to scrape NFL weather data

If you are following my progress in the Data Science Learning Club you might know that I am using NFL data for the tasks. For predicting sports events I think it is not only important to have statistics about the players, teams and previous games but also about the weather. From when I was a … Continue reading Use rvest to scrape NFL weather data