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How to make rounded percentages add up to 100%
...ents[i], rounded[i] + 1) - error_gen(percents[i], rounded[i]), i) for i in range(n)]
rank = sorted(errors)
for i in range(up_count):
rounded[rank[i][1]] += 1
return rounded
>>> round_to_100([13.626332, 47.989636, 9.596008, 28.788024])
[14, 48, 9, 29]
>>> round_...
How to export DataTable to Excel
...string.Join(",", row.ItemArray.Select(val => $"\"{val}\"")));
lines.AddRange(valueLines);
File.WriteAllLines("excel.csv", lines);
This will write a new file excel.csv into the current working directory which is generally either where the .exe is or where you launch it from.
...
Parsing HTML into NSAttributedText - how to set font?
...are in harder way is not smart .. :)
– Sameera Chathuranga
Feb 10 '15 at 8:04
2
Best and smart an...
Streaming a video file to an html5 video player with Node.js so that the video controls continue to
...
The Accept Ranges header (the bit in writeHead()) is required for the HTML5 video controls to work.
I think instead of just blindly send the full file, you should first check the Accept Ranges header in the REQUEST, then read in and s...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
... X.shape, centres.shape, delta, maxiter, metric)
allx = np.arange(N)
prevdist = 0
for jiter in range( 1, maxiter+1 ):
D = cdist_sparse( X, centres, metric=metric, p=p ) # |X| x |centres|
xtoc = D.argmin(axis=1) # X -> nearest centre
distances = D[a...
Python: Why is functools.partial necessary?
... return partial(math.sin, x)
Iter = 10**7
start = time.clock()
for i in range(0, Iter):
l = make_lambda()
stop = time.clock()
print('lambda creation time {}'.format(stop - start))
start = time.clock()
for i in range(0, Iter):
l()
stop = time.clock()
print('lambda execution time {}'.forma...
Numpy - add row to array
...5,6])
n_loops = 100
start_clock = perf_counter()
for count in range(0, n_loops):
numpy_array = np.vstack([numpy_array, numpy_row]) # 5.8 micros
duration = perf_counter() - start_clock
print('numpy 1.14 takes {:.3f} micros per row'.format(duration * 1e6 / n_loops))
st...
Detecting taps on attributed text in a UITextView in iOS
...L];
if (characterIndex < textView.textStorage.length) {
NSRange range;
id value = [textView.attributedText attribute:@"myCustomTag" atIndex:characterIndex effectiveRange:&range];
// Handle as required...
NSLog(@"%@, %d, %d", value, range.location, range...
Are lists thread-safe?
...rs will get the error quickly
count = 1000
l = []
def add():
for i in range(count):
l.append(i)
time.sleep(0.0001)
def remove():
for i in range(count):
l.remove(i)
time.sleep(0.0001)
t1 = threading.Thread(target=add)
t2 = threading.Thread(target=remove)
t1...
Find objects between two dates MongoDB
...
Querying for a Date Range (Specific Month or Day) in the MongoDB Cookbook has a very good explanation on the matter, but below is something I tried out myself and it seems to work.
items.save({
name: "example",
created_at: ISODate("2010...