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Does pandas iterrows have performance issues?
...
Generally, iterrows should only be used in very, very specific cases. This is the general order of precedence for performance of various operations:
1) vectorization
2) using a custom cython routine
3) apply
a) reductions tha...
Relative imports in Python 3
...ython3.
The simplest fix for this case, assuming the name mymodule is globally unique, would be to avoid using relative imports, and just use...
from mymodule import as_int
...although, if it's not unique, or your package structure is more complex, you'll need to include the directory containing...
How do you match only valid roman numerals with a regular expression?
...0,3})$
Breaking it down, M{0,4} specifies the thousands section and basically restrains it to between 0 and 4000. It's a relatively simple:
0: <empty> matched by M{0}
1000: M matched by M{1}
2000: MM matched by M{2}
3000: MMM matched by M{3}
4000: MMMM matched by M...
Some font-size's rendered larger on Safari (iPhone)
...blem you're describing centers around the fact that Mobile Safari automatically scales text if it thinks the text will render too small. You can get around this with the CSS property -webkit-text-size-adjust. Here's a sample of how to apply this to your body, just for the iPhone:
@media screen and...
Linq: What is the difference between Select and Where
...rable<A> in, IEnumerable<A> out
Select
returns something for all items in the source (projection / transformation). That something might be the items themselves, but are more usually a projection of some sort.
-> IEnumerable<A> in, IEnumerable<B> out
...
Why are dashes preferred for CSS selectors / HTML attributes?
...re separated with underscore and there were no stops.
Also, using hyphens allows you to take advantage of the |= attribute selector, which selects any element containing the text, optionally followed by a dash:
span[class|="em"] { font-style: italic; }
This would make the following HTML elements...
How to uncheck checkbox using jQuery Uniform library
...oken. Here's an updated fiddle. If you mean that it'll have issues specifically in 1.6, then that's probably true since jQuery changed then reverted behavior of .attr(). Using 1.6 or higher, you should really be using .prop().
– user113716
Aug 25 '11 at 16:42
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Which library should I use for server-side image manipulation on Node.JS? [closed]
...t sure which of those are more mature and provide better performance. Basically I want to do the following:
3 Answers
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Linq to Sql: Multiple left outer joins
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This may be cleaner (you dont need all the into statements):
var query =
from order in dc.Orders
from vendor
in dc.Vendors
.Where(v => v.Id == order.VendorId)
.DefaultIfEmpty()
from status
in dc.Status
.Where(...
How can I add a PHP page to WordPress?
...og that will execute my PHP code in it, whilst remaining a part of the overall site CSS/theme/design.
17 Answers
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