Matplotlib Tutorial 5 - stack plots

In this Matplotlib data visualization tutorial, we cover how to create stack plots. The idea of stack plots is to show "parts to the whole" over time. A stack plot is basically like a pie-chart, only over time.

Let's consider a situation where we have 24 hours in a day, and we'd like to see how we're spending out time. We'll divide our activities into: Sleeping, eating, working, and playing.

[PsychOpathy]

I found this guy searching for neural networks and after the python basics and face recognition, started the matplotlib series. This guy has something my teachers didn't.

[Majskolvenz]

There is a "labels" argument to the stackplot function, at least in recent versions: plt.stackplot(x, y1, y2, labels=['label1', 'label2'])
Also, passing in a list of colors like shown in this tutorial generates a deprecation warning since Matplotlib 1.5:
MatplotlibDeprecationWarning: The set_color_cycle attribute was deprecated in version 1.5. Use set_prop_cycle instead.

[jasonclement]

Your channel is wonderful... i dont even know where to begin because everything is so useful. Sticking w/ these matplots for now. Kind of new to python... long time BI developer.

[jacob.]

Great video! Just thought I would let you know currently matplotlib has been updated so you can add labels to stacked plots, I used the command:
"labels=["Sleeping", "Eating", "Working", "Playing"]"
inside
"plt.stackplot(days, sleeping, eating, working, playing, colors=["m", "c", "r", "k"], labels=["Sleeping", "Eating", "Working", "Playing"])"
which worked for me

[jamu]

Wow man you are killing it when it comes to explaining. Way better than the site tutorial for like 90% of stuff thanks!

[vishu]

Correct me if I am wrong but cant we just use the label like this:
plt.stackplot(days, sleeping, working, eating, playing, colors = ['m', 'c', 'r', 'k'], labels = ['sleeping', 'working', 'eating', 'playing'])
it works fine in my program.

[SamOween]

For newer versions of MPL, your line for plt.stackplot should look something like:
plt.stackplot(days, sleeping, eating, working, playing, labels=["days", "sleeping", "eating", "working", "playing"]) - worked for me!

[arceniocornejo]

I am beginning to learn Python. Your ttutorials are very illuminating. Thanks.

[michaeldufton]

Just started learning Matplotlib. These videos are really useful. Thanks!

[figjam-jhib]

hi, It's pretty messed up that no one is polite enough to tell you it's pronounced "muh-jen-ta", anyways you're the man and thanks for uploading this content as well as the copious amounts of other videos and comments!

[Ninja-iqxt]

Thannks sentdex, for this unique series.

[MbkeliteVlog]

I like how you effortlessly added all the hours up to 24 meanwhile I'm over here with 14 hour days on my chart..

[inigoalonso]

In my case it didn't work in any way except when I included the list in the legend -> plt.legend(['sleeping', 'eating', 'working', 'playing']).

[veronaswindall]

"I get all mine from the sun" lol

[kareemjeiroudi]

I loved this workaround when you can't label the fills from the stackplot.

[mitchellfolbe]

When you get older, the time you spend sleeping and playing decreases and the time you spend working and eating increases.

[KartikeyRiyal]

I am using this for data visualization. Which is the best one for it?

[michaelbachman]

Can you create a "hover-over" annotation for each set of y values along the x-axis? For example, for each point along the x-axis, instead of--or in addition to--the line colors, can you annotate the values for 'sleeping', 'eating', 'working' and 'playing', such that when your mouse pointer hovers over an x-value, the y-values for each category displays?

Example: Mouse pointer hovers over Day 1, and the legend shows the values for each category on Day 1. Hover over Day 4, any the values for each category for Day 4 are displayed.

Also: Is there a way to create a movable vertical line that corresponds to each x-axis value to show the user his/ her position relative to the x-axis? (there may be a technical name for this type of line, but I don't know it).

Hope that this makes sense.

[gmc]

Pronounce it like "majenta".

[andersonfs]

1:28 "I don't know what a typical human sleeps", neither me pal