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Label encoding across multiple columns in scikit-learn
...mn; I'd rather just have one big LabelEncoder objects that works across all my columns of data.
21 Answers
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Simple way to repeat a String in java
I'm looking for a simple commons method or operator that allows me to repeat some String n times. I know I could write this using a for loop, but I wish to avoid for loops whenever necessary and a simple direct method should exist somewhere.
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Rename a dictionary key
... this question seems to be asking, is impractical because dict keys are usually immutable objects such as numbers, strings or tuples. Instead of trying to modify the key, reassigning the value to a new key and removing the old key is how you can achieve the "rename" in python.
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SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed
...L Certificate Authority (CA) bundle. You can do this with:
sudo port install curl-ca-bundle [if you are using MacPorts]
or just pull it down directly wget http://curl.haxx.se/ca/cacert.pem
Execute the ruby code that is trying to verify the SSL certification: SSL_CERT_FILE=/opt/local/etc/certs/ca...
Capture characters from standard input without waiting for enter to be pressed
...oo much on the terminal used that may be connected with stdin (they are usually line buffered). You can, however use a library for that:
conio available with Windows compilers. Use the _getch() function to give you a character without waiting for the Enter key. I'm not a frequent Windows developer...
How can I get the external SD card path for Android 4.0+?
... this returned both the internal and external. This device is kinda an oddball in that its internal largely goes unused as getExternalStorage() returns a path to the sdcard instead.
and some single storage devices that use an sdcard as their main storage
HTC G1 (cyanogenmod 6.1)
HTC G1 (stock)
H...
“Failed to load platform plugin ”xcb“ ” while launching qt5 app on linux without qt installed
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In my case sudo apt-get install libx11-xcb1 fixed the problem. But your recommendation of using ldd was what pointed me to the correct library to install. Thanks!
– Daniel
Mar 17 '15 at 0:37
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How do I simulate a hover with a touch in touch enabled browsers?
...s to your CSS as well:
.hover {
-webkit-user-select: none;
-webkit-touch-callout: none;
}
To stop the browser asking you to copy/save/select the image or whatever.
Easy!
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Set cookie and get cookie with JavaScript [duplicate]
...okie = name +'=; Path=/; Expires=Thu, 01 Jan 1970 00:00:01 GMT;';
}
Now, calling functions
setCookie('ppkcookie','testcookie',7);
var x = getCookie('ppkcookie');
if (x) {
[do something with x]
}
Source - http://www.quirksmode.org/js/cookies.html
They updated the page today so everything in th...
Using the HTML5 “required” attribute for a group of checkboxes?
... checked. Following is your html code (make sure that you add required for all the elements in the group.)
<input type="checkbox" name="option[]" id="option-1" value="option1" required/> Option 1
<input type="checkbox" name="option[]" id="option-2" value="option2" required/> Option 2
&l...