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Matplotlib scatter plot with different text at each data point
...g over the values in n.
y = [2.56422, 3.77284, 3.52623, 3.51468, 3.02199]
z = [0.15, 0.3, 0.45, 0.6, 0.75]
n = [58, 651, 393, 203, 123]
fig, ax = plt.subplots()
ax.scatter(z, y)
for i, txt in enumerate(n):
ax.annotate(txt, (z[i], y[i]))
There are a lot of formatting options for annotate(), ...
data.table vs dplyr: can one do something well the other can't or does poorly?
... operations involving a subset of rows - i.e., DT[x > val, sum(y), by = z] type operations.
Benchmark other operations such as update and joins.
Also benchmark memory footprint for each operation in addition to runtime.
2. Memory usage
Operations involving filter() or slice() in dplyr can be ...
Jquery date picker z-index issue
...
Put the following style at the 'input' text element: position: relative; z-index: 100000;.
The datepicker div takes the z-index from the input, but this works only if the position is relative.
Using this way you don't have to modify any javascript from jQuery UI.
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What encoding/code page is cmd.exe using?
...t?
Here’s a test file containing Unicode characters:
ASCII abcde xyz
German äöü ÄÖÜ ß
Polish ąęźżńł
Russian абвгдеж эюя
CJK 你好
Here’s a Java program to print out the test file in a bunch of different
Unicode encodings. It could be in any programmi...
Bring element to front using CSS
...e out how to bring images to front using CSS . I've already tried setting z-index to 1000 and position to relative, but it still fails.
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How to use the C socket API in C++ on z/OS
I'm having issues getting the C sockets API to work properly in C++ on z/OS .
9 Answers
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How to find gaps in sequential numbering in mysql?
...t as fast as possible) answer
Here's version that works on table of any size (not just on 100 rows):
SELECT (t1.id + 1) as gap_starts_at,
(SELECT MIN(t3.id) -1 FROM arrc_vouchers t3 WHERE t3.id > t1.id) as gap_ends_at
FROM arrc_vouchers t1
WHERE NOT EXISTS (SELECT t2.id FROM arrc_vouche...
How do I parse an ISO 8601-formatted date?
I need to parse RFC 3339 strings like "2008-09-03T20:56:35.450686Z" into Python's datetime type.
27 Answers
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Ruby replace string with captured regex pattern
..., note that you can index a string with a regex:
"foo"[/oo/]
#=> "oo"
"Z_123: foobar"[/^Z_.*(?=:)/]
#=> "Z_123"
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Generate array of all letters and digits
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[*('a'..'z'), *('0'..'9')] # doesn't work in Ruby 1.8
or
('a'..'z').to_a + ('0'..'9').to_a # works in 1.8 and 1.9
or
(0...36).map{ |i| i.to_s 36 }
(the Integer#to_s method converts a number to a string representing it in a des...