在CustomJS with a Python function example回調函數正在從變量'source'中獲取數據。我也想通過'源',但我的'源'實際上是一個由列數據源組成的列表。如何將源列表傳遞給bokeh python中的'from_py_func'回調?
我曾嘗試:
DEF回調(源,窗口=無): 爲i的範圍(源): 數據源= [I]。數據
我試圖結合我的源到一個最終的來源,但我得到的錯誤,因爲列長度不一樣(我首先列出列數據源的原因)。
我看到的唯一成功是:
DEF回調(源=源[0],窗口=無):
但這僅改變的我的數據集之一。
這是我目前完整的代碼,它不僅工程首來源:
def SMAcallback(source=source[0], window=None):
data = source.data
f = cb_obj.value
x, y = data['x'], data['y']
topx, midx, botx, = data['topx'], data['midx'], data['botx']
topy, midy, boty, = data['topy'], data['midy'], data['boty']
avg = sum(y) * 1.0/len(y)
variance = map(lambda t: (t - avg) ** 2, y)
varAvg = sum(variance) * 1.0/len(variance)
std_dev = window.Math.sqrt(varAvg)
y_avg = []
x_day_list = []
for d in range(0, f - 1):
y_avg.append("Nan")
x_day_list.append("NaN")
for d in range(f, len(y)):
tot = sum(y[d - f:d])
avg = tot/f
y_avg.append(avg)
x_day_list.append(x[d])
top_Band = []
bot_Band = []
mid_Band = []
curSD = std_dev
curSMA = y_avg
for i in range(len(y)):
top_Band.append(curSMA[i] + (curSD * 2))
bot_Band.append(curSMA[i] - (curSD * 2))
mid_Band.append(curSMA[i])
for i in range(len(y)):
topy[i] = top_Band[i]
midy[i] = mid_Band[i]
boty[i] = bot_Band[i]
topx[i] = x_day_list[i]
midx[i] = x_day_list[i]
botx[i] = x_day_list[i]
source.change.emit()
SMAwindow_slider = Slider(start=1, end=100, value=20, step=1,
title="SMA Window(days)", callback=CustomJS.from_py_func(SMAcallback))
我試圖做出改變,我們正在計算簡單移動平均的天滑塊。我想我可以爲每個單獨的來源製作一個滑塊,但它看起來不太好。