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Extract elements of list at odd positions
...he list is being iterated from the second element to the end.
We also provided third argument (step) which is 2. Which means that one element will be selected, the next will be skipped, and so on...
So, to sum up, in this case [1::2] means:
take the second element (which, by the way, is an odd e...
Overlaying histograms with ggplot2 in R
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This doesn't work when the subset has different size. Any idea how address this? (E.g. use data with 100 points on "a", 50 on "b").
– Jorge Leitao
Jul 14 '15 at 7:49
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How to load/edit/run/save text files (.py) into an IPython notebook cell?
...'ve not been successful in finding a way to import .py files into the individual cells of an open IPython notebook so that they can edited, run and then saved. Can this be done?
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Is Python strongly typed?
...@gsingh2011 Truthiness is useful and not weak typing on its own, but an accidental if isValid(value) - 1 can leak. The boolean is coerced into integer, which is then evaluated as a truthy value. False - 1 becomes truthy and True - 1 becomes falsy, leading to an embarrassingly difficult two-layered o...
test a file upload using rspec - rails
...argument to post was a path helper method, whose only intended argument I didn't enclose in parentheses, so the following tokens were interpreted as additional args to the helper, rather than args for the post itself. E.g., I had post order_documents_path @order, document: file instead of post order...
How do I associate file types with an iPhone application?
... </array>
</dict>
</array>
Two images are provided that will be used as icons for the supported types in Mail and other applications capable of showing documents. The LSItemContentTypes key lets you provide an array of Uniform Type Identifiers (UTIs) that your applicati...
CSS triangle custom border color
...the triangle have a white background with a 1px border (around the angled sides of the triangle) with color #CAD5E0. Is this possible? Here's what I have so far:
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AngularJS toggle class using ng-class
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The second example is cleaner, but it's ridiculous that you can't put the variable you're evaluating at the front of the expression... it just reads funny. Imagine looking at the expression as an if statement: "if (variable) true: do this, false: do that... ugh #ful...
How to declare a structure in a header that is to be used by multiple files in c?
...Struct ; /* Forward declaration */
struct MyStruct
{
/* etc. */
} ;
void doSomething(struct MyStruct * p) /* parameter */
{
struct MyStruct a ; /* variable */
/* etc */
}
While a typedef will enable you to write it without the struct keyword.
struct MyStructTag ; /* Forward declaration *...
What are the mechanics of short string optimization in libc++?
...have a sizeof 3 words on all architectures, where sizeof(word) == sizeof(void*). You have correctly dissected the long/short flag, and the size field in the short form.
what value would __min_cap, the capacity of short strings, take for different architectures?
In the short form, there are 3 ...