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Tricks to manage the available memory in an R session
...oad.R and do.R, where load.R may take quite some time to load in data from files or a database, and does any bare minimum pre-processing/merging of that data. The last line of load.R is something to save the workspace state. Then do.R is my scratchpad whereby I build out my analysis functions. I fr...
When are you supposed to use escape instead of encodeURI / encodeURIComponent?
...u want a working URL. Make this call:
encodeURI("http://www.example.org/a file with spaces.html")
to get:
http://www.example.org/a%20file%20with%20spaces.html
Don't call encodeURIComponent since it would destroy the URL and return
http%3A%2F%2Fwww.example.org%2Fa%20file%20with%20spaces.html
...
Bootstrap Alert Auto Close
...
For a smooth slideup:
$("#success-alert").fadeTo(2000, 500).slideUp(500, function(){
$("#success-alert").slideUp(500);
});
$(document).ready(function() {
$("#success-alert").hide();
$("#myWish").click(function showAlert()...
sys.argv[1] meaning in script
...to know your script name. To get the first argument after the script for a filename, you could do the following:
filename = sys.argv[1]
This is a very common usage, but note that it will fail with an IndexError if no argument was supplied.
Also, Python lets you reference a slice of a list, so to...
Is 23,148,855,308,184,500 a magic number, or sheer chance?
...n to the bank is known as settlement, and its done by sending a plain text file in a very rigid format. (This was all developed decades ago and the number of systems now using it makes it hard to modernise)
Each transaction appears in the file as a line of text, and part of that is the transaction ...
What is Angular.noop used for?
...writing a function that expects a callback.
Example:
function myFunction(id, value, callback) {
// some logic
return callback(someData);
}
The function above will return an error, when it gets called without specifying the third argument. myFunction(1, 'a');
Example (using angular.noop...
RESTful Authentication via Spring
...edentials (user/pass combo) with each request is not desirable. Per REST guidelines (and internal business requirements), the server must remain stateless. The API will be consumed by another server in a mashup-style approach.
...
CUDA incompatible with my gcc version
... CUDA_NVCC_FLAGS="-ccbin gcc-4.4" .. && make. If you use plain Makefile you can try make CXX=g++-4.4 CC=gcc-4.4.
– patryk.beza
Apr 4 '16 at 18:54
1
...
Copy rows from one Datatable to another DataTable?
...
Try This
String matchString="ID0001"//assuming we have to find rows having key=ID0001
DataTable dtTarget = new DataTable();
dtTarget = dtSource.Clone();
DataRow[] rowsToCopy;
rowsToCopy = dtSource.Select("key='" + matchString + "'");
...
What is the meaning and difference between subject, user and principal?
...
These are hierarchical in the way that genus, species and individual are hierarchical.
Subject - In a security context, a subject is any entity that requests access to an object. These are generic terms used to denote the thing requesting access and the thing the request is made again...