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Split list into smaller lists (split in half)
...ngth // wanted_parts: (i+1)*length // wanted_parts]
for i in range(wanted_parts) ]
A = [0,1,2,3,4,5,6,7,8,9]
print split_list(A, wanted_parts=1)
print split_list(A, wanted_parts=2)
print split_list(A, wanted_parts=8)
...
Retrieve the commit log for a specific line in a file?
...
See also Git: discover which commits ever touched a range of lines.
Since Git 1.8.4, git log has -L to view the evolution of a range of lines.
For example, suppose you look at git blame's output. Here -L 150,+11 means "only look at the lines 150 to 150+11":
$ git blame -L...
Get month name from number
...more useful here.
Here is an example:
import calendar
for month_idx in range(1, 13):
print (calendar.month_name[month_idx])
print (calendar.month_abbr[month_idx])
print ("")
Sample output:
January
Jan
February
Feb
March
Mar
...
...
Matrix Transpose in Python
...ixTranspose(anArray):
transposed = [None]*len(anArray[0])
for t in range(len(anArray)):
transposed[t] = [None]*len(anArray)
for tt in range(len(anArray[t])):
transposed[t][tt] = anArray[tt][t]
print transposed
This works, though there are more Pythonic ways ...
angularjs directive call function specified in attribute and pass an argument to it
...e
},
},
regularSearch: function(e) {
console.log(this.range);
this.fire('complete', {'text': this.text});
},
listeners: {
'button.click': 'regularSearch',
}
});
</script>
</dom-module>
Page
<search id="search" polimer-binding="sear...
How do I get the number of elements in a list?
...he builtin function, len:
items = []
items.append("apple")
items.append("orange")
items.append("banana")
And now:
len(items)
returns 3.
Explanation
Everything in Python is an object, including lists. All objects have a header of some sort in the C implementation.
Lists and other similar bu...
Analyze audio using Fast Fourier Transform
...e above 25hz).
Depending on how many bars you want, you divide the whole range into 1/X octave ranges.
Based on a given center frequency of A on the bar, you get the upper and lower limits of the bar from:
upper limit = A * 2 ^ ( 1 / 2X )
lower limit = A / 2 ^ ( 1 / 2X )
To calculate the next a...
How to determine whether a substring is in a different string
...d_sub_string(word, string):
len_word = len(word) #returns 3
for i in range(len(string)-1):
if string[i: i + len_word] == word:
return True
else:
return False
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Select rows of a matrix that meet a condition
... @neilfws What will be the solution if I want to define some values for a range of columns. for example df <- df[!which(df$ARID3A:df$YY1 == "U"),], here I want to remove those rows from my df where a range of columns (ARID3A: YY1) contains the value U.
– Newbie
...
Queue.Queue vs. collections.deque
...ue
import collections
q = collections.deque()
t0 = time.clock()
for i in xrange(100000):
q.append(1)
for i in xrange(100000):
q.popleft()
print 'deque', time.clock() - t0
q = Queue.Queue(200000)
t0 = time.clock()
for i in xrange(100000):
q.put(1)
for i in xrange(100000):
q.get()
pr...