Show HN: Create Matplotlib visualizations from the command-line https://ift.tt/iCU3HcJ

Show HN: Create Matplotlib visualizations from the command-line I do lots of data analyses in the command-line and I was missing a simple utility to plot the output of a command (without having to script it). I like very much the Matplotlib API but I found no CLI to pipe data into it. So, I wrote MatplotCLI, a simple CLI that reads data from the stdin and allows to easily create interactive plots from the command-line. Have a look at the README for examples and recipes. Let me know what you think, thanks! Some examples: $ plt "hist(x,30)" < sample.json $ cat sample.json | plt --no-show "hist(x,30); savefig('myimage.png')" $ plt --no-input " x = np.linspace(-1,1,2000); y = x*np.sin(1/x); plot(x,y); axis('scaled'); grid(True)" $ echo ' {"a":0, "b":1} {"a":1, "b":0} {"a":3, "b":3}' | plt "plot(a,b)" https://github.com/dcmoura/matplotcli March 23, 2022 at 01:00AM

Show HN: We made an open-source personalization engine https://ift.tt/Sc2gohi

Show HN: We made an open-source personalization engine Hey, HN! You probably know that the ordering of products on Amazon, posts in FB, and search results in Google is personalized for each visitor, as it directly affects conversion, click rate and engagement. But not everyone can afford to hire an army of PhDs to squeeze every penny out of the ranking, and not everyone agrees on the current (im)balance between privacy and profits. So we built Metarank, an open-source and privacy-focused personalization engine. It can rerank in real-time any type of content, using only the data you allow, and optimize metrics you define. We made a lot of proprietary DIY services for personalization in e-commerce in our past careers and heard so many complaints from other companies also struggling to implement personalization. It’s often considered "too risky" to spend 6+ months on an in-house moonshot project to reinvent the wheel without an experienced team and no existing open-source tools. Like other people in the industry, we were tired of building everything from the bottom up each time we approached personalization - it should be easy not only for Amazon to do such magical ML tricks, but for everyone else. A small demo of the tool with personalized recommendations: https://ift.tt/5Tth8EZ A blog post on how this demo was made: https://ift.tt/aR0LPYU... The project itself: https://ift.tt/1RNcXZw https://ift.tt/1RNcXZw March 23, 2022 at 06:42PM

Show HN: Front-End Best Practices Boilerplate and Course https://ift.tt/pbhXe7B

Show HN: Front-End Best Practices Boilerplate and Course https://ift.tt/Liu41jR March 23, 2022 at 12:39PM

Show HN: App that scans food packaging for nutritions, allergens, origin etc. https://ift.tt/OqZTkg3

Show HN: App that scans food packaging for nutritions, allergens, origin etc. https://ift.tt/8arkDj7 March 23, 2022 at 04:36AM

Show HN: Vault – Sports bet data aggregation app https://ift.tt/qTofeNY

Show HN: Vault – Sports bet data aggregation app Hey HN, this is Caleb and Zach, we co-founded Vault after realizing how behind the times consumer-facing tech was in the sports betting industry. After creating various products and prototypes for sports bettors for most of 2020 (many with little/no success), in early 2021 we realized a key problem that sports bettors faced... Most of them were tracking their bets, ROI, and net profit using Excel tables or other forms of manual entry. Gaining inspiration from fintech apps such as Intuit Mint and CoPilot, both of which link with your financial accounts and aggregate your data, we created Vault. An app that links with a bettor's sportsbooks (i.e. DraftKings, BetMGM, Caesars) and aggregates that data. Would love to hear your thoughts, and feel free to reach out to Zach and I at info@vaultsportshq.com https://ift.tt/v7h4yi2 March 23, 2022 at 03:52AM

Show HN: Scrt – A secret manager for the command line https://ift.tt/8NLqfYh

Show HN: Scrt – A secret manager for the command line https://ift.tt/iBGhK7Y March 23, 2022 at 03:38AM

Show HN: Collow – Save time on your task management for software teams. https://ift.tt/TWRbmZC

Show HN: Collow – Save time on your task management for software teams. https://collow.io March 23, 2022 at 12:05AM