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作者 painkiller 在 PTT [ Python ] 看板的留言(推文), 共58則
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1F推: 跑模擬用普通python list跑會很慢喔...01/21 22:49
2F推: 你的目的應該是N-body simulation 有很多資源可以找01/21 22:58
3F→: 隨便google了一個 https://goo.gl/4ZZmaL01/21 23:00
4F→: 裡面有討論基本N個球在重力影響下計算軌跡的例子01/21 23:01
5F→: 先參考看看01/21 23:01
4F→: 感覺是讀檔讀到怪怪的東西 整個數列資料型態不對01/14 13:31
5F→: numpy.array(A).astype(float)先試試看 b也比照辦理01/14 13:33
1F推: 不是,你應該用 x = [[] for i in range(2)]01/04 10:43
2F→: [[]]*2得到的是兩個指向同一個位址的[]01/04 10:44
1F→: 補充一下,x跟y的誤差都不小的時候比較有必要用MCMC01/01 04:01
2F→: 如果誤差不大用MCMC沒什麼特別好處,只是慢而已 :P01/01 04:02
8F→: 追加補充一點,MCMC還有個好處就是可以取upper limit01/03 13:55
9F→: 有點像是所謂的survival analylsis的概念01/03 13:55
10F→: 如果有的資料只有x有值,y只知道小於某個數字01/03 13:56
11F→: MCMC可以把這點考慮進去做regression01/03 13:56
6F→: 建議提問題的時候要假設看的人什麼都不知道 講清楚點11/30 11:12
7F→: 突然冒出第幾層第幾個 很難看懂你要幹麻12/01 13:47
8F→: 也沒丟上自己寫的code就在問...12/01 13:48
9F→: rodeo個人使用上會有不定時當機的情形...12/03 11:37
10F→: 舊版的rodeo反而比較好用啊 XD12/03 11:37
1F→: 1.改用matlab 7.1以下 2.matlab內存檔加 -vX 參數08/24 21:34
2F→: 3.改用pytable或h5py讀檔 以上3選一08/24 21:35
13F→: pandas好用歸好用 但是搞清楚資料格式也蠻重要的08/10 00:03
1F推: 個人覺得不錯 喜歡Rstudio的可以試試05/16 01:17
2F→: 另外推薦glue,適合data exploration05/16 01:18
2F→: 只有單純一個column的話有很多方法吧10/11 17:15