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What's the best way to model recurring events in a calendar application?
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@User - acknowledged, thank you. It's so weird - I made my comment over 4 years ago, and I haven't really needed to deal with this issue since then. Just yesterday I got into designing a new module that involves recurring appointments, and I was wondering how to handle them. And...
Linear Regression and group by in R
I want to do a linear regression in R using the lm() function. My data is an annual time series with one field for year (22 years) and another for state (50 states). I want to fit a regression for each state so that at the end I have a vector of lm responses. I can imagine doing for loop for each ...
How can I update NodeJS and NPM to the next versions?
...it would be easier to just use Linux, but at work, I am not free to choose my OS. As @rainabba says, the spirit of the Node.js project is to be cross-platform, and this isn't.
– Kevin Dice
Nov 5 '15 at 19:04
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How do you delete an ActiveRecord object?
...ady's comment in your answer. Struggled to find out why I couldn't destroy my model object...
– the_critic
May 26 '16 at 15:44
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Manually adding a Userscript to Google Chrome
...d not where Chrome normally looks for extensions. For example, Create: C:\MyChromeScripts\.
For each script create its own subdirectory. For example, HelloWorld.
In that subdirectory, create or copy the script file. For example, Save this question's code as: HelloWorld.user.js.
You must also crea...
What is the difference between “Include Directories” and “Additional Include Directories”
In configuration properties of my project, under the "VC++ directories" there is an entry for "Include Directories". But under "C/C++" option, there is another entry called "Additional Include Directories". Same thing happens with library directories.
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When increasing the size of VARCHAR column on a large table could there be any problems?
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Just wanted to add my 2 cents, since I googled this question b/c I found myself in a similar situation...
BE AWARE that while changing from varchar(xxx) to varchar(yyy) is a meta-data change indeed, but changing to varchar(max) is not. Because...
How to add a button to PreferenceScreen
...top, a header) to the PreferenceActivity's ListView like so:
public class MyActivity extends PreferenceActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.preferences);
ListView v...
Spring CrudRepository findByInventoryIds(List inventoryIdList) - equivalent to IN clause
...Query yourself. Something like this should work:
@Query( "select o from MyObject o where inventoryId in :ids" )
List<MyObject> findByInventoryIds(@Param("ids") List<Long> inventoryIdList);
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Convert SVG image to PNG with PHP
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That's funny you asked this, I just did this recently for my work's site and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
/*lo...