Posted by jpluimers on 2018/02/07
pandas – Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more
Pandas is on my research list. Some links to get started:
–jeroen
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Posted by jpluimers on 2018/02/06
Thanks [WayBack] Mr. Rick for the answer as this is exactly the bit I needed:
Input:
set widget="a very useful item" set widget set widget=%widget:"=% set widgetOutput:
widget="a very useful item" widget=a very useful item
[WayBack] Removing double quotes from variables in batch file creates problems with CMD environment – Stack Overflow
This trick is convenient in cases like this:
set LocalHostsFile="%windir%\System32\drivers\etc\hosts"
set LocalHostsTemplate="%LocalHostsFile:"=%.template"
The above replaces ALL double quotes with nothing.
If you want to smart replace (like done when de-quoting CSV), you need a bit more complex code like described in [WayBack] batch file – Remove quotes from named environment variables in Windows scripts – Stack Overflow, where you basically have two options:
Both work because parameters used like %~x do get their quotes removed; you cannot use that syntax on plain variables.
–jeroen
Posted in Batch-Files, Development, Scripting, Software Development | 3 Comments »
Posted by jpluimers on 2018/01/26
This is why I try to avoid doing web-development: [WayBack] Location, location: location = location … and a 534 other ways to reload the page with JavaScript.
Via [WayBack] location = location … and a 534 other ways to reload the page with JavaScript – ThisIsWhyICode – Google+
–jeroen
Posted in Development, JavaScript/ECMAScript, Scripting, Software Development, Web Development | Leave a Comment »
Posted by jpluimers on 2018/01/25
tik4net – Connect from .NET C# application to mikrotik router via ADO.NET like API or enjoy O/R mapper like highlevel api.
Source: CRUD examples for all APIs · danikf/tik4net Wiki
[Archive.is] C# API – tik4net on GitHub – Page 2 – MikroTik RouterOS
–jeroen
Posted in .NET, C#, Development, MikroTik, RouterOS, routers, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2018/01/09
Though I like Python, I can feel the pain when maintaining in other’s code: [WayBack] How did this shit ever work? – The Isoblog reporting [WayBack] network.py does not handle interface resets properly · Issue #663 · python-diamond/Diamond.
Via: [WayBack] How did this shit ever work? – Kristian Köhntopp – Google+
Image from Reddit: parodies on O RLY Books: [WayBack] imgur.com/qErVcwA: Life on an Ops team…
–jeroen
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Posted by jpluimers on 2018/01/02
Sometimes your Atom installation gets so unstable that the quickest solution is a reinstall. For that you need to get a list of user-installed packages, then re-install them.
On Windows your Atom Package Manager apm is here (but not in the path), where the first is version specific and the latter the most recent version:
%LOCALAPPDAT%\atom\app-1.18.0\resources\cli\apm.cmd
%LOCALAPPDATA%\atom\bin\apm.cmd
On Mac OS X, it is here and in the path:
/usr/local/bin/apm
/Applications/Atom.app/Contents/Resources/app/apm/node_modules/.bin/apm
Save your packages:
apm list --installed --bare > package-list.txt
Install packages:
apm install --packages-file package-list.txt
For my own memory, the settings folders:
%USERPROFILE%\.atom~/.atom–jeroen
via:
Posted in atom editor, Development, JavaScript/ECMAScript, Node.js, Power User, Scripting, Software Development, Text Editors | Leave a Comment »
Posted by jpluimers on 2017/12/11
I while ago I had the error “error accessing the registry” while importing.
In my case I had escaped too many back-slashes. Not just the file names in the values, also the registry key names.
So I had key names like this:
[HKEY_CURRENT_USER\\Software]
That fails, but the error won’t tell you why. The key needs to be this:
[HKEY_CURRENT_USER\Software]
BTW: you do not need regedit.exe to import as reg.exe can do the same: [WayBack] How to add a .REG file to your Registry silently – Scott Hanselman
–jeroen
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Posted by jpluimers on 2017/12/07
Ah, C. The best lingua franca we have… because we have no other lingua francas. Linguae franca. Surgeons general? C is fairly old — 44 years, now! — and comes from a time when there were possibly more architectures than programming languages. It works well for what it is, and what it is is a relatively simple layer of indirection atop assembly. Alas, the popularity of C has led to a number of programming languages’ taking significant cues from its design, and parts of its design are… slightly questionable. I’ve gone through some common features that probably should’ve stayed in C and my justification for saying so. The features are listed in rough order from (I hope) least to most controversial. The idea is that C fans will give up when I call it “weakly typed” and not even get to the part where I rag on braces. Wait, crap, I gave it away.
Great re-read towards the end of the year: [WayBack] Let’s stop copying C / fuzzy notepad
Via: [WayBack] Old and busted: emacs vs vi. New and hot: Language war, everybody against everybody else. – Kristian Köhntopp – Google+
–jeroen
Posted in .NET, APL, Awk, bash, BASIC, C, C#, C++, COBOL, CoffeeScript, CommandLine, D, Delphi, Development, F#, Fortran, Go (golang), Java, Java Platform, JavaScript/ECMAScript, Pascal, Perl, PHP, PowerShell, PowerShell, Python, Ruby, Scala, Scripting, Software Development, TypeScript, VB.NET, VBScript | 3 Comments »
Posted by jpluimers on 2017/12/05
Cool: @filmfranz made an advent calendar on Python data analysis featuring a lot of Pandas examples referring to source code found on the interwebz: [WayBack] Data Science Advent – franz.media.
First example is to eliminate outliers in the below graph.
He also has a really cool (German) Playlist on data analysis with Python called Datenanalyse in Python and has a great site with examples at franz.media.
–jeroen
via: [WayBack] Very cool idea: an advent calendar with tips for doing data science with Python and Pandas created by @filmfranz 👉 http://franz.media/advent.html – ThisIsWhyICode – Google+
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Posted by jpluimers on 2017/12/04
via: [WayBack] Hacker News – coinmon: In case you don’t want to install 61 packages [1] :) and [WayBack] The curl + jq based approach to check Bitcoin prices looks a bit more attractive than using a node.js package with 61 dependencies, doesn’t it? Source:… – ThisIsWhyICode – Google+
Function to call curl from bash:
$ coinmon() { > curl "https://api.coinmarketcap.com/v1/ticker/?convert=$1" | jq ".[0] .price_$1" > } $ coinmon eur "6988.4723188"
Or in Python (from the same HackerNew thread): [Archive.is] https://www.pastery.net/jnscrh/
#!/usr/bin/env python3 from urllib.request import urlopen from decimal import Decimal import json def print_coin(coin): print("{} ticker:".format(coin["name"])) print("Price: {:,} EUR".format(Decimal(coin["price_eur"]))) print("Market cap: {:,} EUR".format(Decimal(coin["market_cap_eur"]))) print() r = urlopen("https://api.coinmarketcap.com/v1/ticker/?convert=eur") coins = json.loads(r.read().decode("utf8")) for coin in coins: if coin["id"] in ("bitcoin", "ethereum", "ripple", "monero"): print_coin(coin)
–jeroe
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The Wiert Corner - irregular stream of stuff 