I would like to give a pandas dataframe to Bokeh to plot a line chart with multiple lines. I can easily adjust things and add features with Bokeh. As a JupyterLab power user, I like using Bokeh for plotting because of its interactive plots. # Generate two data series y1 = np.random.rand(10) y2 = np.random.rand(10) + 1. Graphics #120 and #121 show you how to create a basic line chart and how to apply basic customization. Desired behaviour: only show/hide the line that is clicked, such that with a multi-line plot you can use this functionality. Bokeh renders its plot using HTML and JavaScript. This indicates that it is useful while working with web-based dashboards. It is an open source project. Bokeh is a lower-level plotting API, which gives me a lot of control over things I want to do. We need to pass x and y arrays as a list to this method to create multiple line charts. We also have introduced a parameter named line_width which modifies the width of line based on integer provided to it by that many pixels. It can be seen that the crime rate decreased from 2005-2010, with 2010 having the lowest crime rate. Bokeh hovertool in multiple_line plot. Bokeh also provides a method named multi_line() which can be used to plot multiple lines on the same chart. Bokeh hovertool in multiple_line plot. from a graph. Bokeh converts the data source into … Bokeh plot gallery. I also like to use bokeh. To make so with matplotlib we just have to call the plot function several times (one time per group). from bokeh.io import output_file, show from bokeh.plotting import figure from bokeh.models import LinearAxis, Range1d # Seting the params for the first figure. A Computer Science portal for geeks. First, we can loop through the column data source for each group and create each line for each group. I figured it out on my own. It turns out that version 0.8.2 of Bokeh doesn't allow hovertool for lines so I did the same thing using quads. The x-axis should be the df.index and each df.columns should be a separate line. Here I just added 1 to the second y2 data to make it higher than y1, nothing … This posts explains how to make a line chart with several lines. Now I'm plotting genes and what I want to achieve is multiple lines with the same y-coordinate and when you hover over a line you get the name and position of this gene. bokeh. to the usual figure plotting script. Bokeh is a Python package that helps in data visualization. Each line represents a set of values, for example one set per group. # Modules needed from Bokeh. JupyterLab also offers an extension for interactive matplotlib, but it is slow and it crashes with bigger datasets.. A thing I don’t like about Bokeh is its overwhelming documentation and complex examples. I'm new to bokeh and I just jumped right into using hovertool as that's why I wanted to use bokeh in the first place. What if we have multiple lines? In the case of multi-line plots this policy however shows/hides all the shown lines, not just the one that is clicked. The line() function is used to plot the line while circle() is used to point out the value of interest, which in this case is the point where the crime rate was the lowest. There are multiple ways to do multiple line plotting in bokeh. python,bokeh. Bokeh provides a very convenient function multi_line() to plot multiple lines in one go.. We can keep using the x series, but generate two different y series. Photo by Sam Poullain on Unsplash. Analysis - This plot shows the trend in number of crimes over the years. This means this functionality is not usable for multi-line plots. 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