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DATA DOUBLE CONFIRM

DATA DIVE DAYS

Process and product of various data science tasks— from data collection, data preparation, data visualization, to basic statistical analysis and modelling. Datasets for practice available.

Selected as Top 100 Data Science Resources for 2018/2019

on MastersInDataScience.com

Pie Chart or Not

Jul 31, 2018

Pie Chart or Not

In this article, Chart of the Day: Here's how Singaporeans spend their income, we see the notorious pie chart making its entrance. Pie charts are notorious due to the following reasons: - It's difficult to see the ranking straightaway: Sizes of the slices are not in any order. - The colors are random and have no meaning (and not looking very attractive): If the colors have a gradient according to the percentages, it could help in visualizing the ranking. - It's difficult to s

Singapore's Heartbeat

Jul 19, 2018

Singapore's Heartbeat

As Singapore's National Day is coming up, I decided to put together a data viz to better understand how much we have changed across the years. National Day is the time to celebrate the birth of our nation, but also a time to look back at our growth (in construction, economy, population, births and education). All of us united, one people marching on We've come so far together, our common destiny Singapore forever, a nation strong and free - Extract of lyrics from 1987 Nation

Extracting data from tables in PDF

Jul 7, 2018

Extracting data from tables in PDF

Having data in tables in PDF is probably one of the most agonizing thing for users. It feels as if the data is there but not there. [\Edited on 18 Mar 2021] Found this useful resource online: https://theautomatic.net/2019/05/24/3-ways-to-scrape-tables-from-pdfs-with-python/. Ran into issues while trying to use tabula-py with error relating to java, JavaNotFoundError: `java` command is not found from this Python process. Did not manage to overcome after spending some time and

Rescuing Veggies with Data Science

Jul 3, 2018

Rescuing Veggies with Data Science

It's always exciting when the data visualization or analysis you did is used to push forward a movement or a cause. Most would agree this is probably one of the greatest satisfaction we derive as data scientists (again, I'm using this title loosely). So, I got to know of this social initiative called SG Food Rescue. They were trying to tackle food waste in Singapore by collecting unsellable but edible food from vegetables/ fruits wholesale markets and then distributing them t