In a previous post I constructed a simple agent-based simulation model, containing groups of agents that can be located on a battlefield grid. The model was coded in Python, using matplotlib for visualization. I went on to conduct a simple […]
This is a quick documentation on Python string operations. Writing string to variable (assignment) using equal (=) operator a = “test string” print(a) test string Line-breaks within a string (multi-line string) using three quotes b = “””This is first line, […]
In a previous post I demonstrated how one can query automotive data via Quandl directly from within a Python script. In this post I will document how to query platinum and palladium exchange prices from Quandl in Python. The data […]
A quick post on how to query data from Quandl in Python. Quandl can be installed with the “pip install” command in your command prompt. For this simply type “pip install quandl” in your Anaconda command prompt. Quandl is the […]
A quick exercise in implementing an algorithm calculates the coefficients of the first derivative of a continuous function with one variable. Implementation is done in the code below. The function takes a list of coefficients. These must be specified in […]
As a small coding exercise I will write some lines of Python code that find the maximum value in a list and return it. In Python, this can be done with a build-in default function called max(). I avoid using […]
As a small coding exercise I will write some lines of Python code that find the minimum value in a list and return it. In Python, this can be done with a build-in default function named min(). I avoid using […]
In a previous post I constructed a simple agent-based simulation model, containing groups of agents that can be located on a battlefield grid. The model was coded in Python, using matplotlib for visualization. The agents were modelled as a class, […]
A brief documentation on iterables and iterators in Python. An iterator is an object that can be iterated, i.e. one can traverse through all of its elements. Iterables are containers that can provide an iterator object. Examples of iterables are […]
This is a brief documentation on how to use sets in Python. In Python, a set is a collection – i.e. a container which without indexing and withour order. Sets are declared with {} brackets in Python # defining a […]
A quick and dirty introduction to dictionaries in Python. Dictionaries are a special container type. Each element has a key. This allows targeted search and data retrieval. However, dictionaries also have disadvantages vs. e.g. lists. E.g. a list is used […]
A quick introduction to working with lists in Python. Lists are a general container in Python. Lists are a sequence-type of data structure that can be growns and reduced in size dynamically, i.e. as needed during your program. Lists are […]
A quick introduction to lambda functions in Python. Below you find some examples of lambda functions in Python. Documentation is added to the code directly – in the form of comments. Lambda fucntions in Python are stated in accordance with […]
I want to provide a brief example on how you can create plot-based animations with Matplotlib in Python. Below Python code implements a simple exponential growth animation. Documentation is added directly to the code in the form of comments. # […]
In a previous post I demonstrated how to visualize a 2D grid, using matplotlib and pyplot in Python (post titled “Visualizing 2D grids and arrays using matplotlib in Python”). That post was meant as first introduction on how to visualize […]
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