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simple cian stat. run on results page in table mode
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| // run first: | |
| // go to cian search result | |
| // Снять на длительный срок однокомнатную квартиру с фото | |
| // в центре с мебелью, холодильником и стиралкой | |
| // var priceMin = 30000; | |
| // var metroFootTimeMin = 15; | |
| // location.href = `http://www.cian.ru/cat.php?currency=2&deal_type=rent&engine_version=2&foot_min=${ metroFootTimeMin }&mebel=1&mebel_k=1&metro%5B0%5D=4&metro%5B10%5D=50&metro%5B11%5D=54&metro%5B12%5D=56&metro%5B13%5D=58&metro%5B14%5D=61&metro%5B15%5D=64&metro%5B16%5D=66&metro%5B17%5D=68&metro%5B18%5D=71&metro%5B19%5D=77&metro%5B1%5D=8&metro%5B20%5D=78&metro%5B21%5D=80&metro%5B22%5D=84&metro%5B23%5D=85&metro%5B24%5D=86&metro%5B25%5D=96&metro%5B26%5D=98&metro%5B27%5D=103&metro%5B28%5D=105&metro%5B29%5D=114&metro%5B2%5D=8&metro%5B30%5D=115&metro%5B31%5D=115&metro%5B32%5D=119&metro%5B33%5D=121&metro%5B34%5D=123&metro%5B35%5D=124&metro%5B36%5D=125&metro%5B37%5D=129&metro%5B38%5D=130&metro%5B39%5D=132&metro%5B3%5D=12&metro%5B40%5D=145&metro%5B41%5D=148&metro%5B42%5D=149&metro%5B43%5D=150&metro%5B44%5D=159&metro%5B4%5D=15&metro%5B5%5D=18&metro%5B6%5D=20&metro%5B7%5D=38&metro%5B8%5D=46&metro%5B9%5D=47&minprice=${ priceMin }&offer_type=flat&only_foot=2&rfgr=1&room1=1&type=-2&wm=1&wp=1`; | |
| // | |
| // | |
| // run second: | |
| // init | |
| var cl =console.log.bind(console); | |
| var loadJs = (src) => new Promise((res, rej) => { | |
| var script = document.createElement('script'); | |
| script.src = src; | |
| script.onload=()=>{cl('loaded', src); res(src)}; | |
| document.head.appendChild(script); | |
| }); | |
| // load libs | |
| Promise.all([ | |
| loadJs('https://cdnjs.cloudflare.com/ajax/libs/jstat/1.5.2/jstat.min.js'), | |
| loadJs('https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.13/d3.min.js'), | |
| loadJs('https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.0.0/lodash.min.js') | |
| ]) | |
| .then(() => { cl('js inited'); calc(); }); | |
| var calc = () => { | |
| // grab prices | |
| var prices = _($$('.objects_item_price')) | |
| .map(e => e.textContent) | |
| .map(t => t.trim().replace(/\s/,'')) | |
| .map(t => parseInt(t, 10) / 1000) | |
| .value() | |
| // цены аренды в мес в тысячах руб. | |
| // [35, 40, 40, 44, 45, 47, 50, 50, 50, 55, 60, 65, 65, 70, 70, 75, 80, 90, 95, 95, 100, 120, 30, 32, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 36, 36, 37, 37, 37, 37, 38, 38, 38, 38, 38, 38, 38, 39] | |
| // 90th percentile — максимум без выбросов | |
| cl('true max', jStat.percentile(prices, .9)) // 81 | |
| // 30th percentile — минимум без выбросов | |
| cl('true min', jStat.percentile(prices, .3)) // 35 | |
| // Среднее (тупое среднее) | |
| cl('mean', jStat.mean(prices)) // 49 | |
| // mediane — медиана (правильное среднее) | |
| cl('**median**', jStat.median(prices)) // 38 | |
| }; |
http://jstat.github.io/all.html — статистические инструменты
https://www.facebook.com/a.gnrl/posts/1020812954631586?pnref=story
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