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How to shift a column in Pandas DataFrame
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156
In [18]: a
Out[18]:
x1 x2
0 0 5
1 1 6
2 2 7
3 3 8
4 4 9
In [19]: a.x...
JavaScript exponents
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a**b // will rise a to the power b
Now it is already implemented in Edge14, Chrome52, and also it is available with traceur or babel.
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RegEx to find two or more consecutive chars
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198
This should do the trick:
[a-zA-Z]{2,}
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MD5 algorithm in Objective-C
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219
md5 is available on the iPhone and can be added as an addition for ie NSString and NSData like ...
Getting pids from ps -ef |grep keyword
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edited Nov 14 '11 at 10:59
answered Nov 14 '11 at 10:41
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JNI converting jstring to char *
...wikipedia.org/wiki/Java_Native_Interface
http://download.oracle.com/javase/1.5.0/docs/guide/jni/spec/functions.html
concerning your problem you can use this
JNIEXPORT void JNICALL Java_ClassName_MethodName(JNIEnv *env, jobject obj, jstring javaString)
{
const char *nativeString = env->Ge...
figure of imshow() is too small
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142
If you don't give an aspect argument to imshow, it will use the value for image.aspect in your...
Django REST framework: non-model serializer
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158
Django-rest-framework works well even without tying it to a model. Your approach sounds ok, bu...
Why use Ruby's attr_accessor, attr_reader and attr_writer?
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edited Sep 28 '12 at 11:03
answered Feb 18 '11 at 21:43
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JS: Check if date is less than 1 hour ago?
Is there a way to check if a date is less than 1 hour ago?
7 Answers
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