purple-air
question:purple-air

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Author Comment Last activity Moderation
liz "oh no! I wonder if there's a way to make it more obvious that once someone has clicked "preview" to preview their comment, that the "preview" butto..." | Read more » about 5 years ago
jeffalk "Hi @liz, I just lost my lengthy comment. I clicked on the "preview" button below and then wanted to change some things and couldn't get back and..." | Read more » about 5 years ago
joyofsoy "Oh man. Where to start? Even before you correct based on a model, you would want some normalization by timestamp at maybe 5 minute or hour interval..." | Read more » about 5 years ago
liz "hi @IshaGupta18 i'd love to see your guide to Simple Data grapher when it's ready :) " | Read more » about 5 years ago
liz "Hi @jeffalk , thanks for offering help! Which are your favorite functions to use within Excel for data cleaning? Can you describe your process here? " | Read more » about 5 years ago
jeffalk "Hi @stevie, @Aleah, @Cbarnes9, and @crispinpierce, stevie's list is excellent, but perhaps more detailed than is necessary. Please correct me if I..." | Read more » about 5 years ago
anurag123bhai "thanks for sharing good things ....https://sarkariresultadda.com " | Read more » about 5 years ago
warren "We didn't do any calibration at all, and are just reporting out the values produced by the sensor. Purple Air does a conversion to AQI, but do you ..." | Read more » over 5 years ago
warren "@IshaGupta18 maybe your guide to Simple Data Grapher could address some of this? :+1: " | Read more » over 5 years ago
crispinpierce "Thanks @stevie and @warren. So green is 140 degrees and represents 0 ug/m3 and red is zero degrees and >= 20 ug/m3? I'm curious about how the ca..." | Read more » over 5 years ago
warren "This wheel shows the range of values from 0-140 that correspond to the 0-20 values from the sensor: " | Read more » over 5 years ago
warren "Just that a really in-depth discussion on how this works can be found here: https://publiclab.org/questions/warren/04-18-2019/brainstorm-on-ways-to..." | Read more » over 5 years ago
stevie "These particular sensors, the way they are programmed, is to test a range between 0 and 20 micrograms per cubic meter, where 0 is green, and red is..." | Read more » over 5 years ago
stevie "@Aleah I recently took a Data Carpentry course on this topic which offered some neat tools and practices. For best practices, here are some of the..." | Read more » over 5 years ago