Recent Posts

Pytables

Posted in College Productivity
file formats


This is part of a series on data storage with Python.

A previous post covered HDF5 files, and mentioned that they offer the ability to append rows of data as an experiment is in progress. In this post, we'll cover a library specifically designed to use this feature. The name …

HDF5 Files

Posted in College Productivity
file formats


This is part of a series on data storage with Python. HDF stands for hierarchical data files, and HDF5 was a standard that was developed to allow massive data sets to be stored and read in a computationally and space-efficient way. HDF5 files can be very complex and typically require …

Rich Man and Lazarus - Egyption allusion in Luke 16

Posted in Bible Study
rich man and lazarus


Someone from Serbia was reading my blog, and sent me an email with some additional sources that I wasn't able to find when I originally did the study. I had read on some forums that Luke 16 had allusions to an Egyptian text, but I was never able to find …

Compact Allan-deviation Code

Posted in College Productivity


This is a quick little code snippet that claculates the Allan deviation of the input data.

import numpy as np
def oadev(data, rate, numpoints=30):
    x = np.cumsum(data)
    ms = np.unique(np.logspace(0, np.log10(len(data) / 10), numpoints).astype(int))
    oavars = [((x[2*m:] - 2*x …

How to denoise a 1-D signal with a Kalman Filter with Python

Posted in College Productivity


I frequently need to denoise a signal that is the sum of a noise and drift process. I'm going to provide a quick little Python tutorial (with some code you can copy-paste) that you can use to denoise noise and drift in your experiments.

Let's suppose we have some measurement …

Directness in Mark

Posted in Bible Study


When Mark wrote his gospel, he used the Greek words "ευθεως" (directly) and "ευθυς" (direct) very frequently. In preparation for a sermon, I wanted to investigate and categorize the different ways that the word is used. In doing so, I learned that Mark wanted to characterize a Jesus who was …

Bible Verses about 123gtd.com

Posted in Bible Study


I was cleaning out some post-it notes today, and found some notes I had made way back in August 21 while I was prototyping a paper version of 123gtd.com. The notes were a handful of verses that I was using to decide whether I should make it a private …

123gtd is online

Posted in Newsletter
123gtd


Not much to share, but after a bit of wrangling with Amazon's Serverless Applicaiton Model settings, I finally have been able to push a version 0 of 123gtd to https://123gtd.com with an API at https://api.123gtd.com/v1. It's not to look at yet, but I've got …

123gtd.com

Posted in Newsletter
123gtd


I've been thinking about building a social productivity app for years. Well, I'm starting it today. I don't have much to share ... yet... except that I've registered the domain name and put $12 of skin into the game. I'll be building it up at 123gtd.com over the next few …

Past Futures and the Second Coming

Posted in Bible Study
philosophy second coming


Last evening, I was at an event where a Pastor asked, "What would we do differently in our churches if in 10 years, this would all be over and Jesus would come back?"

It made me think of 2 Peter 3:4, where people argue fallaciously that (a) Jesus hasn't …

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