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Fastest way to replace NAs in a large data.table
...d Ramnath's answers.
require(data.table) # v1.6.6
require(gdata) # v2.8.2
set.seed(1)
dt1 = create_dt(2e5, 200, 0.1)
dim(dt1)
[1] 200000 200 # more columns than Ramnath's answer which had 5 not 200
f_andrie = function(dt) remove_na(dt)
f_gdata = function(dt, un = 0) gdata::NAToUnkno...
Google maps API V3 - multiple markers on exact same spot
...
@Ignatius most excellent answer, updated to work with v2.0.7 of MarkerClustererPlus.
Add a prototype click method in the MarkerClusterer class, like so - we will override this later in the map initialize() function:
// BEGIN MODIFICATION (around line 715)
MarkerClusterer.prot...
LISTAGG in Oracle to return distinct values
... ','([^,]+)(,\1)+', '\1')
-> 2 ,2.1,3,4 Success - fixed length items
V2 -items contained within items eg. 2,21
regexp_replace('2.1,1','([^,]+)(,\1)+', '\1')
-> 2.1 Fail
regexp_replace('2 ,2 ,2.1,1 ,3 ,4 ,4 ','(^|,)(.+)(,\2)+', '\1\2')
-> 2 ,2.1,1 ,3 ,4 -- success - NEW regex
regexp_r...
What are the differences between json and simplejson Python modules?
...
It seems the Python2.7 json adopted simplejson v2.0.9 which is far behind the current simplejson v3.6.5 as of writing. There are lots of improvements worth the import simplejson
– Kenji Noguchi
Nov 11 '14 at 19:30
...
How to force HTTPS using a web.config file
...
You need URL Rewrite module, preferably v2 (I have no v1 installed, so cannot guarantee that it will work there, but it should).
Here is an example of such web.config -- it will force HTTPS for ALL resources (using 301 Permanent Redirect):
<?xml version="1.0" ...
What is the best practice for “Copy Local” and with project references?
...es 2,438–2,450 and 2,474–2,524 from C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Microsoft.Common.targets into Common.targets.
For completeness the resulting target definition then becomes:
<!-- This is a modified version of the Microsoft.Common.targets
version of this target it does ...
AngularJS - Create a directive that uses ng-model
...replace it, leave the scope alone, but note that replace is deprecated for v2.0:
app.directive('myReplacedDirective', function($compile) {
return {
restrict: 'E',
template: '<input class="some">',
replace: true
};
});
Otherwise use this:
app.directive('myDirectiveWithScope',...
GestureDetect 手势检测扩展：识别滑动、点击和长按手势 · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 ...
App Inventor 2 软件著作权（软著）申请指南 · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 ...
Which Boost features overlap with C++11?
...Math Common Factor → std::experimetal::gcd, lcm (Library Fundamentals TS v2)
Concept check → Concepts TS
Range → Range TS
Asio → Networking TS (sockets and timers only)
Multiprecision → Numerics TS
Coroutine/Coroutine2 → Coroutines TS
A large part of MPL can be trimmed down or removed ...