{"action":"created","issue":{"url":"https://api.github.com/repos/GeoDaCenter/geoda/issues/457","repository_url":"https://api.github.com/repos/GeoDaCenter/geoda","labels_url":"https://api.github.com/repos/GeoDaCenter/geoda/issues/457/labels{/name}","comments_url":"https://api.github.com/repos/GeoDaCenter/geoda/issues/457/comments","events_url":"https://api.github.com/repos/GeoDaCenter/geoda/issues/457/events","html_url":"https://github.com/GeoDaCenter/geoda/issues/457","id":172020427,"number":457,"title":"averages results don't match manually calculated ones in one 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can manually replicate the results of the DID for 21 cities except for one (Chicago) where there are slight differences between GeoDa's output and my manual one:\r\n\r\n<img width=\"1471\" alt=\"screen shot 2016-08-18 at 5 56 20 pm\" src=\"https://cloud.githubusercontent.com/assets/13679743/17793480/2d6dfc8a-656d-11e6-8f86-9b81d0596dd0.png\">\r\n\r\nI'll send you the chicago.zip file and one other one (akron.zip) where the manual replication matches GeoDa's so we can figure out why Chicago's differs. I looked at the data and obvious things (like no missing values) but couldn't find a reason for the difference."},"comment":{"url":"https://api.github.com/repos/GeoDaCenter/geoda/issues/comments/243238510","html_url":"https://github.com/GeoDaCenter/geoda/issues/457#issuecomment-243238510","issue_url":"https://api.github.com/repos/GeoDaCenter/geoda/issues/457","id":243238510,"user":{"login":"jkoschinsky","id":13679743,"avatar_url":"https://avatars.githubusercontent.com/u/13679743?v=3","gravatar_id":"","url":"https://api.github.com/users/jkoschinsky","html_url":"https://github.com/jkoschinsky","followers_url":"https://api.github.com/users/jkoschinsky/followers","following_url":"https://api.github.com/users/jkoschinsky/following{/other_user}","gists_url":"https://api.github.com/users/jkoschinsky/gists{/gist_id}","starred_url":"https://api.github.com/users/jkoschinsky/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jkoschinsky/subscriptions","organizations_url":"https://api.github.com/users/jkoschinsky/orgs","repos_url":"https://api.github.com/users/jkoschinsky/repos","events_url":"https://api.github.com/users/jkoschinsky/events{/privacy}","received_events_url":"https://api.github.com/users/jkoschinsky/received_events","type":"User","site_admin":false},"created_at":"2016-08-29T20:03:42Z","updated_at":"2016-08-29T20:03:42Z","body":"This was caused by misinterpreting the black line, which represents all obs, as the one for unselected obs, so the means were for all instead of unselected. GeoDa's DID calculation is correct.\r\n\r\nTo avoid this confusion in the future, let's make the following two changes:\r\n1. Replace the black solid line for all obs with a black dotted line in all views (that way, when it overlaps with the selected line, both can be seen)\r\n2. in all views, add: all obs to the text in the footer (to match selected and unselected obs)"}}
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