To count and sort and detect table name in SQLite 3 database to use python. -


i have stock daily data contains 2410 tables. each table name stock's code number. database name datatbak.db , structure of table this:

->head(5)

       date    volume       open       high        low      close   0  20160509  312894.0  1290000.0  1300000.0  1285000.0  1299000.0       1  20160510  171191.0  1299000.0  1300000.0  1288000.0  1296000.0       2  20160511  176688.0  1296000.0  1299000.0  1287000.0  1292000.0      3  20160512  152302.0  1292000.0  1292000.0  1275000.0  1281000.0         4  20160513  245698.0  1281000.0  1281000.0  1251000.0  1253000.0             diff_close   0         nan   1   -0.002309   2   -0.003086   3   -0.008514   4   -0.021858

diff_close rise / fall rate. made through pandas df.pct_change() function.

and want work on data frame.

first, want detect number of items , table names able n% returns specific date specific date. example, call table names of stocks rose 7% month.

the result seems way: 

394 a005930, a003150, a000020, ···········

and sort number of times rate of return(during 1 month) more 7% in descending order. example

cnt = number of times 7% return recorded month count = number of eligible items

cnt count 18  4  17  6 16  8 15  5  14  10 13  9 .   .  .   .  .   .

how can achieve using python? appreciate hint. not sure if better create new data frame of yield month.

enter image description here


Comments

Post a Comment

Popular posts from this blog

node.js - Node js - Trying to send POST request, but it is not loading javascript content -

i have been trying send post request website, , has not been loading full site. i guessing problem node js not loading javascript content, executing it. can see javascript in response, though never loads content javascript files producing in html. what mean is, doesn't execute javascript. how make node js code overcome this, , wait the full website load? have tried native code, , "request' module, both producing same errors. if helps, don't need native javascript. modules fine. some code have tried (request module): var options = { method: 'post', uri: 'https://url', formdata: { 'email': 'email', 'prize': '0', 'transactional': 'on' }, headers: { /* 'content-type': 'application/x-www-form-urlencoded' */ // set automatically } }; rp(options) .then(function (body) { console.log(body) }) .catch(function (err) { console.log(err) }); when fetch content...
Read more

javascript - Replicate keyboard event with html button -

i have tried few ways make happen. have javascript pinball game uses keyboard keys controls. converting application touch screen display. workaround, hoping overlay buttons when clicked simulate keyboard strokes. have done research , sounds should work. using jquery v3.2.1 here things have tried far... html element: <input type="button" class="coil"></input> $('.coil').trigger({type: 'keydown', which: 40, keycode: 40}); with this, not errors, nothing happens. var coilkey = $('body').keydown(function(e) { switch (e.keycode) { case 40: break;} }) $('.coil').click(coilkey); this 1 returns error in console... ((jquery.event.special[handleobj.origtype] || (intermediate value)).handle || handleobj.handler).apply not function below javascript game engine handles key listeners... addkeylistener: function (keyandlistener) { this.keylisteners.push(keyandlistener); }, // gi...
Read more

javascript - Web audio api 5.1 surround example not working in firefox -

i've been playing lott lately web audio api on both firefox , chrome. few days ago started experiment surround set. when trying surround audio in web audio api came notice example works fine in chrome v59 not in firefox v54. // create web audio api context var audioctx = new (window.audiocontext || window.webkitaudiocontext)(); audioctx.destination.channelinterpretation = 'discrete'; audioctx.destination.channelcountmode = 'explicit'; audioctx.destination.channelcount = 6; var oscillators = []; var merger = audioctx.createchannelmerger(6); console.log(audioctx.destination, merger); //merger.channelinterpretation = 'discrete'; //merger.channelcountmode = 'explicit'; //merger.channelcount = 6; var addoscilator = function(channel, frequency) { var oscillator = audioctx.createoscillator(); oscillator.frequency.value = frequency; // value in hertz oscillator.connect(merger,0,channel); oscillator.start(); oscillators.push(o...
Read more