How to chat between computers using netcat on Mac and Linux
by In our home we have a mix of Mac and Linux computers. My children have a Raspberry Pi in their room and I have a …
How to discover devices on your network (Mac/Linux)
There are several ways to check what devices are currently logged on to your network (e.g. WiFi at home). The first option is to use …
Frk. Slimas Fornemmelse for Snot
Af Kostas Kefaloukos Danmark er et lille halvkoldt land, halvlangt mod nord. Det er ikke så koldt at der er særligt meget sne. Til gengæld …
How to scrape images from the web
I’m interested in object detection and other computer vision tasks. For example, I’m working on a teddy-bear detector with my son. So, how do you …
How to fill missing dates in Pandas
Create a pandas dataframe with a date column: import pandas as pd import datetime TODAY = datetime.date.today() ONE_WEEK = datetime.timedelta(days=7) ONE_DAY = datetime.timedelta(days=1) …
Cosine similarity in Python
Cosine similarity is the normalised dot product between two vectors. I guess it is called “cosine” similarity because the dot product is the product of …
Terms used in shipping
Now that I work in shipping, it is necessary to learn a bunch of new terms. Shipping is regulated under Admiralty Law and there are …
How to sample from softmax with temperature
Here is how to sample from a softmax probability vector at different temperatures. import numpy as np import matplotlib.pyplot as plt import matplotlib as mpl …
How to explore two-dimensional data with a heatmap
https://seaborn.pydata.org/generated/seaborn.heatmap.html
How to display a Choropleth map in Jupyter Notebook
Here is the code: %matplotlib inline import geopandas as gpd import matplotlib as mpl # make rcParams available (optional) mpl.rcParams[’figure.dpi’]= 144 # increase dpi (optional) …