scatter-plot | Simple responsive CSS scatter plot chart | Chart library

I want to make a pandas.DataFrame.plot with colorbar. For reproducibility, here I use the code in this post on stack overflow.

Is there a way to change the color of just a single group in Altair plot, while leaving the rest the same? I like the default color scheme fine, but there is one group I want to change the color for.

For example, in a scatter-plot like this:

I'm trying to make a scatter plot with 2 dropdown menus that select a data column (from a pandas data frame) to be plotted for x and y-axis, but I'm also wanting the points to be colored by a third categorical variable that is fixed (no dropdown needed for this one).

So far, I've been able to create the scatterplot correctly with functional dropdown menus thanks to another post, but I don't know how to colorize it by a third variable. Here's the code so far:

I created two scatterplots and put them on the same graph. I also want to match the points of the two scatterplots (note that the two scatterplots have the same number of points).

My current code is provided below, and the plot I want to get is sketched at the bottom of this post.

I have created a scatter plot with bokeh. I want to generate a best fit polynomial curve on the data, and superimpose the curve on the cloud of points.

I have generated a 2nd degree polyline with polyfit:

I am trying to control the colour for each bar and each bar segment, in a Chaco stacked bar plot.

For example, running Chaco's stacked bar plot example gives,

How do I turn it into this monstrosity?

I can see Chaco has ColourMapped Scatter Plot which allows control over each point. I need this behavior but with bar plots. Is there a quick way of doing this?

Here is the demo. code to generate the default Chaco Stacked Bar Plot

I have a dictionary of data that I would like to plot. My dictionary is currently structured like so: (# = some number)

I am creating a dash-app, that makes some callbacks until it finally draws a 3D-scatter-plot. This takes about one or two seconds. I would like to know if there is a way to make a plot in the beginning that just contains text (something like "Plot is being computed. This can take some seconds.").

So far I am doing something like

I have been trying to add a legend and amend it, however after spending hours on different websites, books, etc. I was unable to do it.

Data used to produce below graphs -> https://1drv.ms/u/s!Ao8fi7Xi8BskhKkDRQUn2zSdcgxofw?e=ki2eaA