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Fast check for NaN in NumPy
...4.45 ms per loop
%timeit np.isnan(array.min()) # 1000 loops, best of 3: 1.64 ms per loop
But in case there is a NaN in the array, especially if it's position is at low indices, then it's much faster:
array = np.random.random(2000000)
array[100] = np.nan
%timeit anynan(array) # 1000000 ...
Where is the itoa function in Linux?
...nguage ("K&R2") contains the following implementation of itoa, on page 64. The book notes several issues with this implementation, including the fact that it does not correctly handle the most negative number
/* itoa: convert n to characters in s */
void itoa(int n, char s[])
{
int i...
Correct approach to global logging in Golang
...meet you")
klog.Error(nil, "uh oh", "trouble", true, "reasons", []float64{0.1, 0.11, 3.14})
klog.Error(myError{"an error occurred"}, "goodbye", "code", -1)
klog.Flush()
}
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improv...
What's the Android ADB shell “dumpsys” tool and what are its benefits?
...ing CPU info
~$ adb shell dumpsys cpuinfo
Output:
Load: 0.08 / 0.4 / 0.64
CPU usage from 42816ms to 34683ms ago:
system_server: 1% = 1% user + 0% kernel / faults: 16 minor
kdebuglog.sh: 0% = 0% user + 0% kernel / faults: 160 minor
tiwlan_wq: 0% = 0% user + 0% kernel
usb_mass_storag: 0% = 0% user...
How to store a dataframe using Pandas
... data needs to be transformed after loading (i.e. string/object to datetime64) this would need to be done again after loading a saved csv, resulting in performance loss. pickle saves the dataframe in it's current state thus the data and its format is preserved. This can lead to massive performance i...
What data type to use for money in Java? [closed]
... rate calculations. However, depending on the application, you may need a 64-bit integer type.
– Alchymist
Mar 25 '15 at 12:34
...
Heroku/GoDaddy: send naked domain to www [closed]
... in order for your domain name to forward, its A record must be pointed to 64.202.189.170 or must fall between the following ranges: 50.63.202.1 - 50.63.202.31 or 184.168.221.1 - 184.168.221.31.
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What is the reason behind cbegin/cend?
...
TemplateRexTemplateRex
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Populating a database in a Laravel migration file
... $table->string('email', 255);
$table->string('password', 64);
$table->boolean('verified');
$table->string('token', 255);
$table->timestamps();
});
// Insert some stuff
DB::table('users')->insert(
array(
'email' =&...
Best way to iterate through a Perl array
..., sounds like one shouldn't use that approach. stackoverflow.com/questions/6440723/… rt.cpan.org/Public/Bug/Display.html?id=115863
– Thorsten Schöning
Jan 14 '19 at 11:40
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