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Convert floats to ints in Pandas?
...>> cols = ['A', 'B']
>>> df[cols] = df[cols].applymap(np.int64)
>>> print(df)
... A B C D
... 0 8 0 1.916283 6.226750
... 1 1 9 9.277504 8.522808
... 2 1 4 2.700118 7.739108
Or for a single column with apply():
>>> df['C'] = df['C']...
How does Chrome's “Request Desktop Site” option work?
...
Did you base your answer from this?
– Keale
Nov 5 '15 at 9:47
...
What are bitwise shift (bit-shift) operators and how do they work?
... of two that added together makes 320:
(row * 320) = (row * 256) + (row * 64)
Now we can convert that into left shifts:
(row * 320) = (row << 8) + (row << 6)
For a final result of:
memoryOffset = ((row << 8) + (row << 6)) + column
Now we get the same offset as before...
How do I display an alert dialog on Android?
...
The Dialog class is the base class for dialogs, but you should avoid instantiating Dialog directly. Instead, use one of the following subclasses: AlertDialog, DatePickerDialog or TimePickerDialog (from developer.android.com/guide/topics/ui/dialogs....
Convert to binary and keep leading zeros in Python
...mat(bin(num)[2:])
Demo:
print binary(1)
Output:
'0b00000001'
EDIT:
based on @Martijn Pieters idea
def binary(num, length=8):
return format(num, '#0{}b'.format(length + 2))
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impr...
Copying text with color from Notepad++
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update As of 2019 NppExport is not included by default in the Notepad++ 64 bits version (github issue). You can download the 64 bits version of NppExport here: [github]
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store and retrieve a class object in shared preference
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Serialise it and store it, in a database (SQLite) / in a flat file.
– Blundell
Mar 24 '11 at 11:35
5
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How to create Java gradle project
...ders eclipse` or `gradle initSourceFolders idea`
* @author Paul Verest;
* based on `gradle init --type basic`, that does not create source folders
*/
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
task initSourceFolders { // add << before { to prevent executing during co...
初窥InnoDB的Memcached插件 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
... name: aaa
db_schema: test
db_table: demo_test
key_columns: c1
value_columns: c2
flags: c3
cas_column: c4
expire_time_column: c5
unique_idx_name_on_key: PRIMARY
如上已经有了test数据库的demo_te...
How can javascript upload a blob?
...OST['data'], strpos($_POST['data'], ",") + 1);
// decode it
$decodedData = base64_decode($data);
// print out the raw data,
echo ($decodedData);
$filename = "test.txt";
// write the data out to the file
$fp = fopen($filename, 'wb');
fwrite($fp, $decodedData);
fclose($fp);
?>
...