--- title: "Geethika Wijewardene (@geeforweb) | Hashnode" description: "Geethika Wijewardene (@geeforweb) writes on Hashnode. Read their latest articles and follow their work." url: "https://hashnode.com/@geeforweb" --- @geeforweb # Geethika Wijewardene @geeforweb · Joined March 2022 ### [Data Extraction from Outlook Attachments using R](https://fewmorethoughts.com/data-extraction-from-outlook-attachments-using-r?utm_source=hashnode&utm_medium=feed) When excel files get delivered through e-mail attachments, how can we extract the data and consolidate into a single table? Here I present an automated process to extract the attachments from Outlook emails and consolidate them using R. I use the RD... 4 min read · [fewmorethoughts.com](https://fewmorethoughts.com/data-extraction-from-outlook-attachments-using-r?utm_source=hashnode&utm_medium=feed) [Nov 11, 2021](https://hashnode.com/posts/data-extraction-from-outlook-attachments-using-r/62405223da7e98a4a2389101) ### [Can we ever accept the null hypothesis?](https://fewmorethoughts.com/can-we-ever-accept-the-null-hypothesis?utm_source=hashnode&utm_medium=feed) Not having enough evidence to reject the null hypothesis doesn't mean the null hypothesis is necessarily true. Here I explain why, using an example. Students in a certain college are more inclined to use drugs than U.S. college students in general. T... 4 min read · [fewmorethoughts.com](https://fewmorethoughts.com/can-we-ever-accept-the-null-hypothesis?utm_source=hashnode&utm_medium=feed) [Oct 28, 2021](https://hashnode.com/posts/can-we-ever-accept-the-null-hypothesis/62405313e18c97b124454b44) ### [Bayes Rule - Notes and Examples](https://fewmorethoughts.com/bayes-rule-notes-and-examples?utm_source=hashnode&utm_medium=feed) What are my chances of being pregnant if the over-the-counter pregnancy test turns out to be positive? What are my chances of getting cancer if I smoke? Or what are my chances of having cancer if my mammogram is negative? Bayes rule can be used to an... 5 min read · [fewmorethoughts.com](https://fewmorethoughts.com/bayes-rule-notes-and-examples?utm_source=hashnode&utm_medium=feed) [Aug 20, 2021](https://hashnode.com/posts/bayes-rule-notes-and-examples/624052dcda7e98a4a2389136) ### [How to learn about an unknown data set quickly? - R and Python](https://fewmorethoughts.com/how-to-learn-about-an-unknown-data-set-quickly-r-and-python?utm_source=hashnode&utm_medium=feed) When you come across an unknown data set, it is important to get to know about it before running into analysis. For instance, knowing the available fields, their data types, count of missing, unique or completed values and their distributions and pre... 4 min read · [fewmorethoughts.com](https://fewmorethoughts.com/how-to-learn-about-an-unknown-data-set-quickly-r-and-python?utm_source=hashnode&utm_medium=feed) [Feb 18, 2021](https://hashnode.com/posts/how-to-learn-about-an-unknown-data-set-quickly-r-and-python/624052a4da7e98a4a2389126) ### [Automate validation of tabular data sets and reports using R](https://fewmorethoughts.com/automate-validation-of-tabular-data-sets-and-reports-using-r?utm_source=hashnode&utm_medium=feed) Data validation is a critical step to maintain the accuracy of an analysis or reporting. For instance, there could be erroneous or missing values in the input data due to poor quality of the data sources or errors could occur during the stage of the ... 5 min read · [fewmorethoughts.com](https://fewmorethoughts.com/automate-validation-of-tabular-data-sets-and-reports-using-r?utm_source=hashnode&utm_medium=feed) [Mar 10, 2020](https://hashnode.com/posts/automate-validation-of-tabular-data-sets-and-reports-using-r/6240526bda7e98a4a238910a)