對大熊貓來說是新的我在失去光滑的隨機數據生成例子的無數。pandas rolling max min意思是
我一直在努力實現的是使用bokeh
創建帶滾動時間窗口的圖形。我想要X軸(重新採樣或其他)時間戳和3行顯示max
,min
和mean
值,讓我們說滾動15秒的時間窗口爲duration
字段。
歡樂停止之前開始...我試圖申請很多例子沒有取得進展或學習很多。
下面
d2 = pd.read_csv(input_file, delimiter=",")
d2["ts_send"] = pd.to_datetime(d2["ts_send"], \
format="%Y-%m-%d %H:%M:%S.%f", exact=True, utc=True)
print (d2.head())
print (d2.rolling("15s", min_periods=1).mean().head())
print (d2.rolling("15s", min_periods=1).std().head())
print (d2.rolling("15s", min_periods=1).min().head())
print (d2.rolling("15s", min_periods=1).max().head())
的代碼產生的異常:
ValueError: window must be an integer
如果我能得到滾動的東西的工作,我可能可以管理bokeh
側。
任何支持實現這一點的指針都會受到高度讚賞!
我在CSV這樣的數據:
ts_send,endpoint,duration, 2017-01-19 09:03:28.600,/api/sig,1.0 2017-01-19 09:03:29.760,/api/sig,0.5 2017-01-19 09:04:51.210,/api/sig,0.508 2017-01-19 09:04:52.410,/api/sig,0.574 2017-01-19 09:09:32.854,/api/sig,1.0 2017-01-19 09:09:36.776,/api/sig,0.637 2017-01-19 09:14:14.207,/api/sig,0.672 2017-01-19 09:14:16.906,/api/sig,0.533 2017-01-19 11:49:34.939,/api/sig,1.0 2017-01-19 11:49:38.709,/api/sig,0.529 2017-01-19 12:19:01.668,/api/sig,1.0 2017-01-19 12:19:05.559,/api/item,0.169 2017-01-19 12:19:05.559,/api/item,0.102 2017-01-19 12:19:05.559,/api/item,0.44 2017-01-19 12:19:05.585,/api/item,0.173 2017-01-19 12:19:06.633,/api/sig,0.564 2017-01-19 12:27:05.712,/api/sig,0.574 2017-01-19 12:27:08.370,/api/sig,0.497 2017-01-19 12:27:43.319,/api/sig,0.561 2017-01-19 12:27:45.873,/api/sig,0.508 2017-01-19 12:46:15.454,/api/sig,1.0 2017-01-19 12:46:20.409,/api/item,0.173 2017-01-19 12:46:20.427,/api/item,0.163 2017-01-19 12:46:20.457,/api/item,0.169 2017-01-19 12:46:20.474,/api/item,0.162 2017-01-19 12:46:20.618,/api/item,0.209 2017-01-19 12:46:20.642,/api/item,0.172 2017-01-19 12:46:20.695,/api/item,0.26 2017-01-19 12:46:20.698,/api/item,0.193 2017-01-19 12:46:20.788,/api/item,0.193 2017-01-19 12:46:20.822,/api/item,0.232 2017-01-19 12:46:20.873,/api/item,0.164 2017-01-19 12:46:20.875,/api/item,0.142 2017-01-19 12:46:20.905,/api/item,0.356 2017-01-19 12:46:20.998,/api/item,0.199
時間戳ts_send
是毫秒precission。有些時候沒有記錄事件,有時候在一毫秒內有多個事件。
根據文檔字符串'window'必須是'int'除非你有一個'DatetimeIndex'(你不這樣做)。 – Goyo
我試着明確地應用'd2.index = pd.DatetimeIndex(d2.ts_send,inplace = True)',這在我的理解中類似於下面的@Bouds建議。它引發了一個異常'ValueError:索引必須是單調的' – numibialainen