Andrea Pasqualini AndreaPasqualini

Pinning Spyder to the Windows Taskbar

If you install Spyder through Anaconda (or miniconda), its launcher in the Start Menu will behave correctly. However, if you pin it to the taskbar, it won't behave properly. Opening Spyder through that icon on the taskbar will open Spyder, but a new (duplicate) icon on the taskbar will appear. The expected behavior would instead be that the pinned icon represents the application window, and no duplicate icon appears.

To fix this bug, I have followed the instructions as per this comment on this GitHub Issue.

Create a new text file in your preferred location, and call it spyder-taskbar.py with the following contents:
```
from win32com.shell import shellcon
from win32com.propsys import propsys, pscon
```

Installing MATLAB on WSL

This guide serves as a note to self to remember how to install MATLAB on a WSL virtual machine.

Environment

Ubuntu 20.04 on WSL2, with Windows 10.

I am reposting this wonderful ReadMe file by @michaelstepner from his healthinequality-code repository. This provides a detailed set of coding guidelines for his specific research project. It contains references to Stata and Julia. However, I believe it also represents an extensive set of arguments in favor of best practices for managing and maintaining code. As Michael correctly points out, we Economists are lagging behind software developers by at least years, if not decades. While we do not need to use complicated command-line interfaces or sophisticated systems, we still rely on automation for our research. It is important not to excessively rely on technical debt, which would otherwise entail unbearable long-term costs. This ReadMe file explains how to do so and provides a set

Copy a Private GPG Key across Machines

This document shows the steps to export and then import again a private GPG key. I find this useful when I need to reinstall my OS. If the GPG key has not been compromised (e.g., theft), then this is a safe way of moving keys around.

First, obtain the ID of the private key.

gpg --list-secret-keys --keyid-format LONG

	from numpy import array, sqrt


	def xy_sizes(diagonal, aspect_ratio, units='centimeters'):
	r"""
	This function computes the horizontal and vertical lengths of a screen
	given its diagonal length and the aspect ratio. The system of equations to
	be solved admits a unique feasible solution in closed form. The system is
	given by these two equations:
	x / y = aspect_ratio

	import numpy as np

	def G(v):
	"""
	Found at https://stackoverflow.com/questions/39512260/calculating-gini-coefficient-in-python-numpy
	"""
	bins = np.linspace(0., 100., 11)
	total = float(np.sum(v))
	yvals = []
	for b in bins:

	#!/usr/bin/env python

	from gi.repository import Gtk
	from gi.repository import GObject
	from gi.repository import WebKit2

	GObject.threads_init()
	win = Gtk.Window()
	bro = WebKit2.WebView()
	bro.load_uri("https://www.google.com")

	\documentclass{article}
	\usepackage{amsmath, amsfonts, amssymb}
	\title{Kroenecker Products and Linalg Trickery}
	\author{Andrea Pasqualini}

	\begin{document}

	\maketitle

	Consider two vectors, $x$ and $y$.

	"""
	Title: dta_to_csv.py
	Author: Andrea Pasqualini

	This CLI tool converts a Stata .dta file into a .csv file. Python3 and pandas
	are dependencies. It does not return anything, internally. It saves on disk a
	file with CSV extension that has the same name as the input DTA file.

	USAGE
	-----

	import numpy as np
	import scipy.linalg as la

	def ols(y, x, const=True):
	n = y.shape[0]

	if const: # if we want to add a constant to the regression
	X = np.concatenate((np.ones((n, 1)), x), axis=1)
	else:
	X = x