# with:warren with:warren

Author Comment Last activity Moderation
warren "Hi bryan - my code is here: https://spectralworkbench.org/macro/warren/centroidish -- I wonder if you did an implementation how different the line ..." | Read more » almost 10 years ago
btbonval "If you have access to matrix math, I can vectorize the previous algorithm to speed it up. If you're in client javascript, I'm unaware of any good v..." | Read more » almost 10 years ago
btbonval "Here's a dirty and slow way to determine the 50% mark: Firstly, normalize your data by dividing the integral (area under the curve). The area unde..." | Read more » almost 10 years ago
stoft "btbonval - point taken, centriod is for 2D; their line just represents the 'center of distribution' " | Read more » almost 10 years ago
stoft "btbonval - true. I was just suggesting a fast integer approximation as a simple means to test and get a 1-number result. The existing work in patte..." | Read more » almost 10 years ago
btbonval "@stoft the centroid would be a point (x,y), not a line (x=B for all y). sorry to nitpick verbiage. I got all mathy in this post, figured I'd keep u..." | Read more » almost 10 years ago
btbonval "What @stoft described in the first message is usually accomplished using a matched filter in DSP. http://en.wikipedia.org/wiki/Matched_filter " | Read more » almost 10 years ago
stoft "I think the term you are looking for is the "centroid" -- think of it as the point where the shape/volume/whatever would be physically balanced -- ..." | Read more » almost 10 years ago
btbonval "@warren The line that you describe would be the weighted mean of the dataset (integral divided by two, aka area under the curve divided by two as @..." | Read more » almost 10 years ago
mihow "Ahh thank you. I've subscribed to various tags and have been getting periodic after-it-happened emails, but the plots-nyc list looks like the golde..." | Read more » almost 10 years ago
mathew "@stevie running three samples and averaging them is a great idea. You can see in the labels that I started running 3-5 tests per sample to go for ..." | Read more » almost 10 years ago
mathew "@stoft Dave, we're getting similar brightnesses between our readings of different oils by varying the concentration and/or light path, which seem t..." | Read more » almost 10 years ago
liz "have you joined our local mailing list? see publiclab.org/wiki/new-york-city That's the best way to find out about events " | Read more » almost 10 years ago
warren "I don't know the word for this kind of thing, but maybe @btbonval does :-) The line divides the graph into two equal areas: " | Read more » almost 10 years ago
mihow "Hi! I live in Brooklyn. I found out about Public Lab though Mathew L. in Portland, OR and have wanting to get involved in NY. " | Read more » almost 10 years ago
stevie "Good work here. I like the blowout warning idea. Experimenting with the oil density is def. another good step, but I agree that the distinct variat..." | Read more » almost 10 years ago
liz "Hi Mihow, great to hear from you! Where are you located? " | Read more » almost 10 years ago
stoft "Looks promising. Maybe these are obvious but... - Pick 3-5 oils, or oil mixtures, as a reference test set -- low to high density -- then use them f..." | Read more » almost 10 years ago
mihow "I like the idea of teaming up with existing fishing groups. I'm interested in working on the sensor prototype and going on some trips! " | Read more » almost 10 years ago
mollydanielsson "This is so awesome that you're making videos with a real video mixer using digital recordings. Excellent modern mashup. " | Read more » almost 10 years ago
sara "Awesome, Kaya and I have been chatting about a trip this fall up to visit you all! Let's make a plan. " | Read more » almost 10 years ago
liz "check this out @sara @Kaya9804 @donblair @kanarinka @eymund " | Read more » almost 10 years ago
liz "@warren created a great logo, here's the PDF: gowanus-thermal-fishing-club.pdf " | Read more » almost 10 years ago
liz "Getting back to this, @warren and I started with a brainstorm: and then Jeff illustrated this: Here's the link to the PDF why-write-research..." | Read more » almost 10 years ago