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How do I get indices of N maximum values in a NumPy array?
...t;>> a = numpy.array([1, 3, 2, 4, 5])
>>> heapq.nlargest(3, range(len(a)), a.take)
[4, 3, 1]
For regular Python lists:
>>> a = [1, 3, 2, 4, 5]
>>> heapq.nlargest(3, range(len(a)), a.__getitem__)
[4, 3, 1]
If you use Python 2, use xrange instead of range.
Source...
Remove all child elements of a DOM node in JavaScript
...astest DOM manipulation method (still slower than the previous two) is the Range removal, but ranges aren't supported until IE9.
var range = document.createRange();
range.selectNodeContents(node);
range.deleteContents();
The other methods mentioned seem to be comparable, but a lot slower than inn...
case-insensitive list sorting, without lowercasing the result?
...t this way for Python 3.3:
def sortCaseIns(lst):
lst2 = [[x for x in range(0, 2)] for y in range(0, len(lst))]
for i in range(0, len(lst)):
lst2[i][0] = lst[i].lower()
lst2[i][1] = lst[i]
lst2.sort()
for i in range(0, len(lst)):
lst[i] = lst2[i][1]
Then yo...
How to control the line spacing in UILabel
...ft Answer")
attrString.addAttribute(.paragraphStyle, value:paragraphStyle, range:NSMakeRange(0, attrString.length))
var tableViewCell = NSTableCellView()
tableViewCell.textField.attributedStringValue = attrString
"Short answer: you can't. To change the spacing between lines of text, you will ha...
How to make a background 20% transparent on Android
...e 20%, you know the opaque percentage value is 80% (this is 100-20=80)
The range for the alpha channel is 8 bits (2^8=256), meaning the range goes from 0 to 255.
Project the opaque percentage into the alpha range, that is, multiply the range (255) by the percentage. In this example 255 * 0.8 = 204. ...
How does this CSS produce a circle?
...;/label></td>
<td><input id="total" value="0" type="range" min="0" max="100" step="1" /></td>
<td><input readonly id="totalText" value="0" type="text" /></td>
</tr>
<tr>
<td><label for="TopLeft">Top-Left</la...
Generate all permutations of a list without adjacent equal elements
...import permutations
from operator import itemgetter
from random import randrange
def get_mode(count):
return max(count.items(), key=itemgetter(1))[0]
def enum2(prefix, x, count, total, mode):
prefix.append(x)
count_x = count[x]
if count_x == 1:
del count[x]
else:
...
How to validate date with format “mm/dd/yyyy” in JavaScript?
...nt(parts[0], 10);
var year = parseInt(parts[2], 10);
// Check the ranges of month and year
if(year < 1000 || year > 3000 || month == 0 || month > 12)
return false;
var monthLength = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
// Adjust for leap years
...
Why does Math.Floor(Double) return a value of type Double?
...
The range of double is much wider than the range of int or long. Consider this code:
double d = 100000000000000000000d;
long x = Math.Floor(d); // Invalid in reality
The integer is outside the range of long - so what would you...
Filter dict to contain only certain keys?
...h a dictionary of 26 items (timeit(..., setup="d = {chr(x+97):x+1 for x in range(26)}")), depending on how many items are being filtered out (filtering out consonant keys is faster than filtering out vowel keys because you're looking up fewer items). The difference in performance may very well becom...