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Swift Beta performance: sorting arrays
...ts the absolute times to seconds:
static const uint64_t NANOS_PER_USEC = 1000ULL;
static const uint64_t NANOS_PER_MSEC = 1000ULL * NANOS_PER_USEC;
static const uint64_t NANOS_PER_SEC = 1000ULL * NANOS_PER_MSEC;
mach_timebase_info_data_t timebase_info;
uint64_t abs_to_nanos(uint64_t abs) {
if ...
How do I calculate percentiles with python/numpy?
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11 Answers
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Match whitespace but not newlines
...-breaking space from extended ASCII, or any of these Unicode characters
U+0009 CHARACTER TABULATION
U+0020 SPACE
U+00A0 NO-BREAK SPACE (not matched by \s)
U+1680 OGHAM SPACE MARK
U+2000 EN QUAD
U+2001 EM QUAD
U+2002 EN SPACE
U+2003 EM SPACE
U+2004 THREE-PER-EM SPACE
U+2005 FOUR-PER-EM SPACE
U+2006...
How to display pandas DataFrame of floats using a format string for columns?
...mary:
df = pd.DataFrame({'money': [100.456, 200.789], 'share': ['100,000', '200,000']})
print(df)
print(df.to_string(formatters={'money': '${:,.2f}'.format}))
for col_name in ('share',):
df[col_name] = df[col_name].map(lambda p: int(p.replace(',', '')))
print(df)
""...
SQL Server dynamic PIVOT query?
...rchar(3),
amount money
)
insert into temp values ('1/1/2012', 'ABC', 1000.00)
insert into temp values ('2/1/2012', 'DEF', 500.00)
insert into temp values ('2/1/2012', 'GHI', 800.00)
insert into temp values ('2/10/2012', 'DEF', 700.00)
insert into temp values ('3/1/2012', 'ABC', 1100.00)
DECLA...
nginx - client_max_body_size has no effect
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nembletonnembleton
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Streaming Audio from A URL in Android using MediaPlayer?
...e/Npr/src/org/npr/android/news/StreamProxy.java?r=e4984187f45c39a54ea6c88f71197762dbe10e72
The NPR app is also still getting the "error (-38, 0)" sometimes while streaming. This may be a threading issue or a network change issue. Check the issue tracker for updates.
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Java Long primitive type maximum limit [duplicate]
...und to Long.MIN_VALUE.
Its not too likely though. Even if you increment 1,000,000 times per second it will take about 300,000 years to overflow.
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与迭代器失效相关的错误，例如:0x008D1127 处有未经处理的异常(在 prog34.e...
...，例如:0x008D1127 处有未经处理的异常(在 prog34.exe 中): 0xC0000005: 读取位置 0x010AC000 时发生访问冲突。错误代码：#include <iostream>#include <vector>using std::vector;using std::cout;using std::endl; 迭代器失效举例-避免存储end...错误代码：
#include...
【Mysql】报mysqli_real_connect(): (HY000/2002)错误 - 数据库(内核) - 清...
【Mysql】报mysqli_real_connect(): (HY000/2002)错误原因分析：手动编译安装mysql指定位置后，所有的mysql文件都在指定的目录或者data目录下面，而php默认只会通过 temp mysql.sock路径寻找soc...原因分析：
手动编译安装mysql指定位置后，所有...