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Apply pandas function to column to create multiple new columns?
... 1 1 1
2 2 2 4 8 16 32 64
3 3 3 9 27 81 243 729
4 4 4 16 64 256 1024 4096
5 5 5 25 125 625 3125 15625
6 6 6 36 216 ...
How do I find the MySQL my.cnf location
...trace mysql ";" 2>&1 | grep cnf
on my machine this outputs:
stat64("/etc/my.cnf", 0xbf9faafc) = -1 ENOENT (No such file or directory)
stat64("/etc/mysql/my.cnf", {st_mode=S_IFREG|0644, st_size=4271, ...}) = 0
open("/etc/mysql/my.cnf", O_RDONLY|O_LARGEFILE) = 3
read(3, "# /etc/mysql/...
np.mean() vs np.average() in Python NumPy?
... axes 0 and 1, I get wildly incorrect results unless I specify dtype='float64':
>T.shape
(4096, 4096, 720)
>T.dtype
dtype('<f4')
m1 = np.average(T, axis=(0,1)) # garbage
m2 = np.mean(T, axis=(0,1)) # the same garbage
m3 = np.mean(T, axis=(0,1), dtype='fl...
What approaches are available to dummy design-time data in WPF?
...ng nothing wrong. The issue was that my application needs to be built for x64. As the Visual Studio is still in 2018 a 32-bit process and apparently cannot spin a 64-bit host process for the designer part it cannot use my x64 classes. The really bad thing is that there are no errors to be found in a...
How can I clone an SQL Server database on the same server in SQL Server 2008 Express?
...with Advanced Services
Version 2012
Click download button and check ENU\x64\SQLManagementStudio_x64_ENU.exe
Version 2014
Click download button and check MgmtStudio 64BIT\SQLManagementStudio_x64_ENU.exe
Open Microsoft SQL Management Studio.
Backup original database to .BAK file (db -> Task -&...
Convert SVG to image (JPEG, PNG, etc.) in the browser
...
var img = canvas.toDataURL("image/png");
// do what you want with the base64, write to screen, post to server, etc...
});
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Most common C# bitwise operations on enums
...= 2,
Three = 4,
Four = 8,
Five = 16,
Six = 32,
Seven = 64,
Eight = 128,
Nine = 256,
Ten = 512
}
class Program
{
static void Main(string[] args)
{
TestFlags f = TestFlags.Five; /* or any other enum */
bool result = false;
Stopwatch s ...
Equivalent of varchar(max) in MySQL?
... max length of a varchar is subject to the max row size in MySQL, which is 64KB (not counting BLOBs):
VARCHAR(65535)
However, note that the limit is lower if you use a multi-byte character set:
VARCHAR(21844) CHARACTER SET utf8
Here are some examples:
The maximum row size is 65535, but a va...
Using AES encryption in C#
... cipher.Clear();
}
return Convert.ToBase64String(encrypted);
}
public static string Decrypt(string value, string password) {
return Decrypt<AesManaged>(value, password);
}
public static string Decrypt<T>(stri...
MySQL Workbench Dark Theme
... first question. My first question is all about changing the color appearance of MySQL Workbench from the default of white background to its negative value of black.
...