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Pointer to class data member “::*”
...re calculating a summary statistic on a time series, or calculating an FFT etc, then you should store the values for each variable contiguously in memory. Otherwise, iterating over the series will cause a cache miss for every value retrieved.
Consider the performance of this code:
struct Sample {...
Red black tree over avl tree
...le
It offers some good insights on differences, similarities, performance, etc.
Here's a quote from the article:
RB-Trees are, as well as AVL trees, self-balancing. Both of them provide O(log n) lookup and insertion performance.
The difference is that RB-Trees guarantee O(1) rotations per insert op...
Where should signal handlers live in a django project?
... To John Mee's point, it's not much different than just overriding save(), etc.
– Matt
May 23 '14 at 17:28
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show 2 more comments
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Confusion between factor levels and factor labels
...a, b, and c
and for which you want the levels to be labeled as Treatment A etc.
The factor function will look for the values a, b and c, convert them to numerical factor classes, and add the label values to the level attribute of the factor. This attribute is used to convert the internal numerical...
Matplotlib different size subplots
...of rows of the grid. I solved it by saying {'width_ratios':[1]} for 1 row, etc.
– Markus Weber
Mar 22 '19 at 17:56
...
How to not run an example using roxygen2?
...sulting line of gctemplate is to indicate the
#' ## (conditonal, partial, etc.) G-causality from variable 1 to variables 2 and 5
#' ## conditonal on variables 3 and 4.
#' # gctemplate(5,1,2)
#' ## The number of all G-causalities to be searched in the above pattern.
#' #dim(gctemplate(5,1,2))[[1]]
...
Android update activity UI from service
... super.onCreate(savedInstanceState);
binding = DataBindingUtil.setContentView(this, R.layout.content_test);
serviceConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
...
How to load program reading stdin and taking parameters in gdb?
...s ...' just gives you the chance to interactively define some break points etc. before running the program
– maxschlepzig
Apr 17 '16 at 7:32
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What is the difference between typeof and instanceof and when should one be used vs. the other?
...have different built-ins (different global object, different constructors, etc.). This may result in unexpected results.
For example, [] instanceof window.frames[0].Array will return false, because Array.prototype !== window.frames[0].Array and arrays inherit from the former.
Also, it cannot be us...
Using Rails 3.1, where do you put your “page specific” JavaScript code?
...file. The project im working on has almost 2mb worth of JS files / plugins etc AFTER being combined / minified.
– Bill Garrison
Mar 29 '13 at 14:16
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