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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...
How do I convert a float number to a whole number in JavaScript?
...
bradbrad
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Can I escape a double quote in a verbatim string literal?
...
BrandonBrandon
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How can I add the new “Floating Action Button” between two widgets/layouts
... from shamanland implementation, use whatever FAB you wish. Assume FAB is 64dp high including shadow:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="ma...
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...
Debug vs. Release performance
...
64
There is no article which "proves" anything about a performance question. The way to prove an a...
Is there a printf converter to print in binary format?
...
Posted an expanded version of this macro with 16, 32, 64 bit int support: stackoverflow.com/a/25108449/432509
– ideasman42
Jun 21 '17 at 19:57
...