无法从 'bokeh.plotting' 导入名称 'Scatter'

Cannot import name 'Scatter' from 'bokeh.plotting'

我正在尝试使用散景散点来表示数据。 这是我的代码:

from bokeh.plotting import Scatter, output_file, show import pandas

df=pandas.Dataframe(colume["X","Y"])

df["X"]=[1,2,3,4,5,6,7]
df["Y"]=[23,43,32,12,34,54,33]

p=Scatter(df,x="X",y="Y", title="Day Temperature measurement", xlabel="Tempetature", ylabel="Day")
output_file("File.html")
show(p)

输出应如下所示: Expected Output

错误是:

ImportError                               Traceback (most recent call
> last) <ipython-input-14-1730ac6ad003> in <module>
> ----> 1 from bokeh.plotting import Scatter, output_file, show
>       2 import pandas
>       3 
>       4 df=pandas.Dataframe(colume["X","Y"])
>       5 

ImportError: cannot import name 'Scatter' from 'bokeh.plotting' (C:\Users\LENOVO\Anaconda3\lib\site-packages\bokeh\plotting__init__.py)

我还发现 Scatter 现在不再维护了。有什么方法可以使用吗? 另外,我必须使用任何其他 python 库来表示与 Scatter 相同的数据的替代方法?

使用旧版本的 Bokeh 可以解决这个问题吗?

如果您在文档中查找“分散”,您会发现

Scatter Markers

To scatter circle markers on a plot, use the circle() method of Figure:

from bokeh.plotting import figure, output_file, show

# output to static HTML file
output_file("line.html")

p = figure(plot_width=400, plot_height=400)

# add a circle renderer with a size, color, and alpha
p.circle([1, 2, 3, 4, 5], [6, 7, 2, 4, 5], size=20, color="navy", alpha=0.5)

# show the results
show(p)

要使用数据帧,只需将 df.Xdf.Y 等列传递给 xy 参数。

from bokeh.plotting import figure, show, output_file
import pandas as pd

df = pd.DataFrame(columns=["X","Y"])

df["X"] = [1,2,3,4,5,6,7]
df["Y"] = [23,43,32,12,34,54,33]

p = figure()
p.scatter(df.X, df.Y, marker="circle")

#from bokeh.io import output_notebook
#output_notebook()

show(p)  # or output to a file...

Scatter(大写 S)从未成为 bokeh.plotting 的一部分。它曾经是几年前删除的旧 bokeh.charts API 的一部分。但是,根本不需要创建基本的散点图,因为 bokeh.plotting 中的所有字形方法(例如 circlesquare)都是隐式散点类型函数,开头为:

from bokeh.plotting import figure, show
import pandas as pd

df = pd.DataFrame({"X" :[1,2,3,4,5,6,7],
                   "Y": [23,43,32,12,34,54,33]})

p = figure(x_axis_label="Tempetature", y_axis_label="Day", 
           title="Day Temperature measurement")
p.circle("X", "Y", size=15, source=df)

show(p)

产生:

您也可以直接将数据作为 传递给 circle

如果你想做更高级的东西,比如map the marker type based on a column还有一个plot.scatter(小写s)方法在图上:

from bokeh.plotting import figure, show
from bokeh.sampledata.iris import flowers
from bokeh.transform import factor_cmap, factor_mark

SPECIES = ['setosa', 'versicolor', 'virginica']
MARKERS = ['hex', 'circle_x', 'triangle']

p = figure(title = "Iris Morphology")
p.xaxis.axis_label = 'Petal Length'
p.yaxis.axis_label = 'Sepal Width'

p.scatter("petal_length", "sepal_width", source=flowers, legend_field="species", fill_alpha=0.4, size=12,
          marker=factor_mark('species', MARKERS, SPECIES),
          color=factor_cmap('species', 'Category10_3', SPECIES))

show(p)

产生: