Hi, I’m Dan Wolchonok. This is my personal blog. Anything written here is my personal opinion, and does not reflect the opinion of anyone else.
Currently, I work at Reforge. Previously, I started a company called PrepWork that was acquired by HubSpot while I was an MBA student at the Yale School of Management. I worked at HubSpot for 5 years, leaving as the Director of Product Analytics. Most importantly, I’m married to a wonderful doctor who is a physician at the Indian Health Service at Shiprock, NM. Check me out on Twitter or on LinkedIn.
I was an enterprise search expert at Microsoft, where I was a technical lead on an enterprise search system with hundreds of millions of documents and millions of queries per day. Before that, I worked at PwC as a consultant in their Advisory practice making technology tools for financial services clients.
I graduated from Tufts University in 2005 with a degree in Computer Science. I ran cross country, track and field, and the Naked Quad Run twice.
August 13, 2016 at 9:26 pm
Thanks lots for your work.
Just subscribed to the blog.
Can i pls ask questions; please help.
For the post “how to quickly format retention data in less than …” and for the table computed with percentages in blue can i pls ask questions about the first row.
week cohort size week 0 week 1
1/5/15 2660 54% 49%
1) does week 0 mean Jan 5 thru Jan 11
2) does week 1 mean jan 12 thru jan 18
3) can i say – 54% of 2660 came back to the app between jan 5 and jan 11
4) definition of retention – is the 54% only users who came back to the app with a session duration of > 2 mins or only users who created any of the events that have a causal relationship to users becoming core users or only users who did the activity that contributes to omtm
5) considering the app should be used at least once a week, wouldn’t it make sense to follow the metric – what percentage of the retained had used the app the previous week.