{"action":"created","issue":{"url":"https://api.github.com/repos/gustavdelius/mizer/issues/19","repository_url":"https://api.github.com/repos/gustavdelius/mizer","labels_url":"https://api.github.com/repos/gustavdelius/mizer/issues/19/labels{/name}","comments_url":"https://api.github.com/repos/gustavdelius/mizer/issues/19/comments","events_url":"https://api.github.com/repos/gustavdelius/mizer/issues/19/events","html_url":"https://github.com/gustavdelius/mizer/issues/19","id":302894767,"number":19,"title":"Create set_scaling_model() similar to set_trait_model","user":{"login":"gustavdelius","id":1340713,"avatar_url":"https://avatars3.githubusercontent.com/u/1340713?v=4","gravatar_id":"","url":"https://api.github.com/users/gustavdelius","html_url":"https://github.com/gustavdelius","followers_url":"https://api.github.com/users/gustavdelius/followers","following_url":"https://api.github.com/users/gustavdelius/following{/other_user}","gists_url":"https://api.github.com/users/gustavdelius/gists{/gist_id}","starred_url":"https://api.github.com/users/gustavdelius/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gustavdelius/subscriptions","organizations_url":"https://api.github.com/users/gustavdelius/orgs","repos_url":"https://api.github.com/users/gustavdelius/repos","events_url":"https://api.github.com/users/gustavdelius/events{/privacy}","received_events_url":"https://api.github.com/users/gustavdelius/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"richardsouthwell","id":5795579,"avatar_url":"https://avatars1.githubusercontent.com/u/5795579?v=4","gravatar_id":"","url":"https://api.github.com/users/richardsouthwell","html_url":"https://github.com/richardsouthwell","followers_url":"https://api.github.com/users/richardsouthwell/followers","following_url":"https://api.github.com/users/richardsouthwell/following{/other_user}","gists_url":"https://api.github.com/users/richardsouthwell/gists{/gist_id}","starred_url":"https://api.github.com/users/richardsouthwell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/richardsouthwell/subscriptions","organizations_url":"https://api.github.com/users/richardsouthwell/orgs","repos_url":"https://api.github.com/users/richardsouthwell/repos","events_url":"https://api.github.com/users/richardsouthwell/events{/privacy}","received_events_url":"https://api.github.com/users/richardsouthwell/received_events","type":"User","site_admin":false},"assignees":[{"login":"richardsouthwell","id":5795579,"avatar_url":"https://avatars1.githubusercontent.com/u/5795579?v=4","gravatar_id":"","url":"https://api.github.com/users/richardsouthwell","html_url":"https://github.com/richardsouthwell","followers_url":"https://api.github.com/users/richardsouthwell/followers","following_url":"https://api.github.com/users/richardsouthwell/following{/other_user}","gists_url":"https://api.github.com/users/richardsouthwell/gists{/gist_id}","starred_url":"https://api.github.com/users/richardsouthwell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/richardsouthwell/subscriptions","organizations_url":"https://api.github.com/users/richardsouthwell/orgs","repos_url":"https://api.github.com/users/richardsouthwell/repos","events_url":"https://api.github.com/users/richardsouthwell/events{/privacy}","received_events_url":"https://api.github.com/users/richardsouthwell/received_events","type":"User","site_admin":false}],"milestone":{"url":"https://api.github.com/repos/gustavdelius/mizer/milestones/1","html_url":"https://github.com/gustavdelius/mizer/milestone/1","labels_url":"https://api.github.com/repos/gustavdelius/mizer/milestones/1/labels","id":3174152,"number":1,"title":"Working multi-species simulation with background species","description":"We want to be able to set up a params object that represents a small number of target species embedded in an ecosystem containing a larger number of background species. The requirements are:\r\n- [ ] The target species coexist at a chosen abundance\r\n- [ ] The steady state reproduction is not so close to r_max that sensitivity to spawning biomass is lost.\r\n- [ ] All parameters of the target species are believable. The steady-state growth curves of the target species are as expected from published von Bertalannfy parameters, the reproductive efficiency is on the order of 0.1, etc.\r\n","creator":{"login":"gustavdelius","id":1340713,"avatar_url":"https://avatars3.githubusercontent.com/u/1340713?v=4","gravatar_id":"","url":"https://api.github.com/users/gustavdelius","html_url":"https://github.com/gustavdelius","followers_url":"https://api.github.com/users/gustavdelius/followers","following_url":"https://api.github.com/users/gustavdelius/following{/other_user}","gists_url":"https://api.github.com/users/gustavdelius/gists{/gist_id}","starred_url":"https://api.github.com/users/gustavdelius/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gustavdelius/subscriptions","organizations_url":"https://api.github.com/users/gustavdelius/orgs","repos_url":"https://api.github.com/users/gustavdelius/repos","events_url":"https://api.github.com/users/gustavdelius/events{/privacy}","received_events_url":"https://api.github.com/users/gustavdelius/received_events","type":"User","site_admin":false},"open_issues":4,"closed_issues":0,"state":"open","created_at":"2018-03-09T13:24:54Z","updated_at":"2018-03-09T13:26:08Z","due_on":null,"closed_at":null},"comments":0,"created_at":"2018-03-06T22:36:54Z","updated_at":"2018-03-11T17:25:11Z","closed_at":null,"author_association":"OWNER","body":"Create a new function that sets up the model with equally spaced species that are scaling copies of each other. So the function is very similar to set_trait_model with four main differences:\r\n1. The egg size is proportional to the maturity size for each species\r\n2. The species are properly aligned with the grid\r\n3. The plankton and background death are chosen so as to produce almost perfect power-law growth and death.\r\n4. The parameters are chosen so that R_0 is close to 1 for each species\r\nThus this should essentially just wrap our existing stable community code. Then the vignette needs to be extended to describe this setup."},"comment":{"url":"https://api.github.com/repos/gustavdelius/mizer/issues/comments/372132579","html_url":"https://github.com/gustavdelius/mizer/issues/19#issuecomment-372132579","issue_url":"https://api.github.com/repos/gustavdelius/mizer/issues/19","id":372132579,"user":{"login":"richardsouthwell","id":5795579,"avatar_url":"https://avatars1.githubusercontent.com/u/5795579?v=4","gravatar_id":"","url":"https://api.github.com/users/richardsouthwell","html_url":"https://github.com/richardsouthwell","followers_url":"https://api.github.com/users/richardsouthwell/followers","following_url":"https://api.github.com/users/richardsouthwell/following{/other_user}","gists_url":"https://api.github.com/users/richardsouthwell/gists{/gist_id}","starred_url":"https://api.github.com/users/richardsouthwell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/richardsouthwell/subscriptions","organizations_url":"https://api.github.com/users/richardsouthwell/orgs","repos_url":"https://api.github.com/users/richardsouthwell/repos","events_url":"https://api.github.com/users/richardsouthwell/events{/privacy}","received_events_url":"https://api.github.com/users/richardsouthwell/received_events","type":"User","site_admin":false},"created_at":"2018-03-11T17:25:11Z","updated_at":"2018-03-11T17:25:11Z","author_association":"COLLABORATOR","body":"Additional differences are:\r\n5. The scale free model we investigated so far had step-like psi function.\r\n6. The exponents in the scale free model are chosen specially so metabolic loss scales with weight like energy income, and we cannot include scale free death terms like fishing mortality.\r\n7. We may want to include chi as an initial parameter choice, so we can stabilize the steady state."}}
{"actor":{"display_login":"richardsouthwell"}}