Matplotlib Scatter Plots | Creating Scatter Plots with Python for Data Science and Geoscience

In this short video, we will see how to make a scatter plot of well log data using the python library called matplotlib.
Scatter plots are excellent data visualization tools and can be used to identify relationships and correlations between variables.
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If you have enjoyed this video and want to say thanks, feel free to buy me a coffee at the following link: buymeacoffee.com/andymcdonaldgeo
Chapters:
0:00 Introduction
1:14 Jupyter Notebook Section
1:23 Importing Libraries and Data
3:34 Creating a Basic Scatter Plot
4:41 Setting X-Axis and Y-Axis Limits
5:37 Adding Labels to the Axes
6:31 Adding a Third Variable for Colour
7:06 Adding a Colorbar and Changing the Colormap
9:01 Summary
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The notebook for this video can be found on my GitHub repository at: github.com/andymcdgeo/Andys_Y...
Libraries used in this video:
LASIO: lasio.readthedocs.io/en/latest/
pandas: pandas.pydata.org
matplotlib: matplotlib.org
Equinor Volve Dataset: www.equinor.com/en/what-we-do...
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Thanks for watching, if you want to connect you can find me at the links below:
/ andymcdonaldgeo
/ geoandymcd
/ andymcdonaldgeo
www.andymcdonald.scot/
#welllogs #petrophysics #python #matplotlib #geoscience

[@kuldipdhokiya7733]

one of the best yt channel for petroleum students

[@AndyMcDonald42]

Thanks very much Kuldip. 👍

[@azwanone2669]

absolutely enjoy these videos! thanks for sharing!

[@SweetPeachannel]

Please share the video about the explanation reading the scatter plot and pairplot, because I still confuse how to read the plot, the correlation and relationships for each dot!

[@faizalimuhammadzoda4731]

Thanks for such a clear exaplanation. Keep up the good work.

[@AndyMcDonald42]

Glad it was helpful!

[@davidlimamorales1153]

I really appreciate what you are doing, i was thinking how to aproach oil engineering to data visualization and also ML models, you make it easier, and interesting. Thank you!!!

[@AndyMcDonald42]

Thanks! Glad to help!

[@hichemsevran]

Thank you so much for makinf this videos available, Can't wait for the fourth Tutorial for displaying Core data, there's codes that i didn't understand much especially the polyfit code line, I think it's M.L.

[@AndyMcDonald42]

You are welcome! I will be covering that one in a future video.

[@hichemsevran]

@@AndyMcDonald42 and I will stay tuned for it, Have a nice day, sir. 😊

[@petroali6412]

Hi sir,
I know you , you are working in Lloyd's Register. I really enjoyed your papers. you are best sir . keep it up ... sir

[@AndyMcDonald42]

Thank you petro Ali, I am glad you enjoyed the video and the papers.

[@kamimassi706]

thanks for the video
please how can I get the Scatter Plots for two (y) axes
Thank you for your time

[@karendiaz5540]

Thanks for this video. It’s possible to built the Gamma Ray bar custom colours instead of picking the rainbow? For example make low GR values in yellow and high brown?

[@AndyMcDonald42]

Hi Karen, you certainly can make your own colourmaps. I can cover that in a future video if it is of interest? But in the meantime, I would recommend using the existing "YlOrBr" colour map, which is one I have used numerous times for the GR shading. You can find a full list here: matplotlib.org/2.0.2/examples/color/colormaps_reference.html
For a custom map, you could use:
import matplotlib
cmap = matplotlib.colors.LinearSegmentedColormap.from_list("", ["yellow","orange","brown"])

[@sebastianmartinez2751]

great!!

[@AndyMcDonald42]

Thanks

[@boi_ratie]

Good Day Sir, I have a csv file and am wondering how do I save it as a LAS file, since i see you read a LAS file as your data input.

[@AndyMcDonald42]

This should be possible, but it will require a little bit of manual work. I would recommend having a look at the documentation on building a LAS file from scratch at the link below. It may be possible to do it from a pandas dataframe, but you should be able to do it from a numpy array as per the example.
I will add this onto my list of videos to make as this would be a good topic to cover.
lasio.readthedocs.io/en/latest/building.html

[@sadockjosephat1896]

Thanks for this. I was wondering how to change the shapes if you have many symbols.

[@sadockjosephat1896]

If anyone knows kindly assist

[@AndyMcDonald42]

Symbols can be changed using the marker argument in plt.scatter
If you want to change the marker based on a category, you could follow the suggestion here: stackoverflow.com/questions/44802561/python-plot-scatter-plot-with-category-and-markersize
It involves a bit more code and looping through the categories after you have applied groupby to the dataframe.