作者查詢 / lycantrope
作者 lycantrope 在 PTT [ Python ] 看板的留言(推文), 共826則
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10F→: 每篇dataframe都問差不多...09/20 08:33
4F推: fstring 跟concat功能差很多,本來就不能單純比效能。09/17 14:03
7F推: 沒錯,而且大部分時候concat都比較慢09/17 14:34
5F→: 能手寫的出來就可以用sympy 寫09/16 08:46
8F→: 筆算就知道行列式為009/16 12:39
12F推: 應該跟樓上寫的一樣只是mat要再減I09/16 15:56
20F推: 如果是i, j 從1開始中心點應該是 L+1 一直到2L+109/16 17:23
21F→: 改papple的np數值解 https://pastebin.com/aX8syE5r09/16 17:29
22F→: 跟sympy不熟,還想不到sympy怎麼改寫09/16 17:30
1F→: 只有複製貼上,想都沒想就上來問喔...上一篇也是09/14 12:09
2F→: 也不解釋一下Snapshot是怎麼產生的09/14 12:09
3F→: 通靈就是df=pd.DataFrame(map(dict,snapshots))09/14 12:15
3F→: df.T.agg("idxmax")09/13 13:54
4F推: 甚至直接df.idxmax(axis = 1)09/13 15:10
2F推: x不是stock["Close"]而是stock.index.values09/12 13:27
3F→: where沒問題,想要畫曲線下y2可以給stock["Close"]09/12 13:31
4F推: 看太懂,文字想要怎樣對齊,可以畫清楚一點比較好幫09/12 13:34
7F→: https://pastebin.com/8e7FZjPa09/12 16:53
12F→: matplotlib.dates有locator跟formatter可以用09/12 17:11
13F→: https://matplotlib.org/stable/api/dates_api.html09/12 17:11
5F→: 看不懂輸出想要什麼,是要產業分開後跟id 分別保存嗎09/11 22:30
6F→: ?還是同一個table直接存成excel09/11 22:30
10F推: ttps://pastebin.com/QEE0H2Gs09/12 11:05
11F推: https://pastebin.com/9Xq2p6r909/12 12:21
2F→: 轉datetime就可以用時間篩選了09/11 12:23
5F推: df[df["ts"].dt.hour >= 12]09/11 14:38
3F→: 可能嫌太醜吧w09/07 10:43
1F→: 錯誤訊息都被你略過,只能猜ssh設定有問題了09/06 11:47
4F→: 如果是用GitPython,tutorial內有寫怎麼設定ssh_key.09/06 14:55