More info at: http://holoviz.org/
Questions tagged [holoviz]
108 questions
11
votes
1 answer
How do i automatically update a dropdown selection widget when another selection widget is changed? (Python panel pyviz)
I have a Select widget that should give a different list of options whenever another Select widget is changed, so it updates whenever this other Select widget changes. How do I this in the example code below?
_countries = {
'Africa': ['Ghana',…
Sander van den Oord
- 10,986
- 5
- 51
- 96
10
votes
1 answer
Show extra columns when hovering in a scatter plot with hvplot
I'm trying to add a label or hover column to the points in a scatter plot, but to no avail.
For use as example data:
import pandas as pd
import holoviews as hv
import hvplot.pandas
df = pd.read_csv('http://assets.holoviews.org/macro.csv',…
MichaelA
- 1,866
- 2
- 23
- 38
10
votes
3 answers
Holoviews charts sharing axis when combined and outputted
I'm using Holoviews to construct a dashboard of charts. Some of these charts have percentages in the y axis where as others have sums/counts etc. When I try to output all the charts I have created to a html file, all the charts change their y axis…
Amen_90
- 310
- 2
- 9
9
votes
1 answer
How to disable scientific notation in hvPlot plots?
I have just started using hvPlot today, as part of Panel.
I am having a difficult time figuring out how to disable scientific notation in my plots. For example here is a simple bar plot. The axis and the tootltip are in scientific notation. How can…
SCool
- 3,104
- 4
- 21
- 49
9
votes
1 answer
Change legend position using holoviews / hvplot
Hvplot has default the position of the legend on the right outside of the plot.
How can I change this default legend position?
import numpy as np
import pandas as pd
import hvplot
import hvplot.pandas
import holoviews as hv
data =…
Sander van den Oord
- 10,986
- 5
- 51
- 96
7
votes
2 answers
Create a grid of plots with holoviews/hvplot and set the max number of columns
I'd like to plot several data into a grid using holoviews/hvplot, based on one dimension, which contains several unique data points.
Considering this example:
import seaborn as sns
import hvplot.pandas
iris = sns.load_dataset('iris')
plot =…
MichaelA
- 1,866
- 2
- 23
- 38
7
votes
1 answer
How do i rotate x labels or y labels? (hvplot or holoviews)
I've created the following plot with hvplot and want to rotate the xlabels in this plot:
import numpy as np
import pandas as pd
import hvplot.pandas
import holoviews as hv
my_plot = pd.DataFrame(np.random.normal(size=[50, 2])).hvplot()
Sander van den Oord
- 10,986
- 5
- 51
- 96
5
votes
2 answers
Change the order of bars in a grouped barplot with hvplot/holoviews
I try to create a grouped bar plot but can't figure out how to influence the order of the barplot.
Given these example data:
import pandas as pd
import hvplot.pandas
df = pd.DataFrame({
"lu": [200, 100, 10],
"le": [220, 80, 130],
…
MichaelA
- 1,866
- 2
- 23
- 38
5
votes
2 answers
How to get a widget "handler" in HoloViews
When creating a plot (QuadMesh) with HoloViews based on xArray data, any missing dimensions will automatically create widgets such as sliders to facilitate data exploration. For example:
hv_ds = hv.Dataset(data)
plot = hv_ds.to(hv.QuadMesh,…
user12444217
- 51
- 2
5
votes
1 answer
Streaming from a pandas DataFrame Using Streamz
The streamz and hvplot packages work together to provide support for plotting streaming data using pandas dataframes.
For example, the streamz package has a convenience utility for creating a random streaming dataframe:
import hvplot.streamz
from…
psychemedia
- 5,690
- 7
- 52
- 84
4
votes
2 answers
Use Holoviz Panel Dropdown value to query dataframe
I am trying to use a Holoviz Panel dropdown widget value to query a dataframe. The dataframe however does not reflect the change in the dropdown value. I added a markdown widget to check if the change in the dropdown value is being captured - It…
sri40
- 41
- 2
4
votes
1 answer
Difference between hvplot and holoplot
So for a while now I have been migrating from Matplotlib to holoviews for my plotting needs, and mostly enjoying what I have experienced. Then i notice hvplot, which seems to make the holviews workflow way easier, by tying it closer together with…
user2194172
- 99
- 1
- 5
4
votes
1 answer
How to display text output from function in Panel Pyviz widgets?
This seems like a basic question but I've tried for a while and not found a solution with Pyviz Panel:
I'm trying to trigger functions with a click of a button, catch the outputs of functions and print them on the screen at desired locations.
The…
Nirjhor Chakraborty
- 125
- 1
- 12
4
votes
1 answer
Trigger event on mouseup instead of continuosly with panel slider widget
How can a function watch for value changes of a panel.widgets.IntSlider, but only trigger when the mouse is released rather than continuously as the slider is dragged around?
I have tried callback_policy='mouseup' and decorated the function with…
joelostblom
- 43,590
- 17
- 150
- 159
3
votes
1 answer
Add one specific datapoint marker to boxplot or violinplot (using holoviews / hvplot)
I made a violinplot of 1 column in my dataframe.
Now I would like to show where one specific datapoint (outlier) lies in comparison with that violinplot.
Below I have created some sample data and I would to plot 1 specific outlier, for example a…
Sander van den Oord
- 10,986
- 5
- 51
- 96