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Is there a library function for Root mean square error (RMSE) in python?
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answered Sep 4 '13 at 20:56
GregGreg
4,25122 gold badges1515 silver badges1818 bronze badges
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How to read data when some numbers contain commas as thousand separator?
...", and then convert the string to numeric using as.numeric:
y <- c("1,200","20,000","100","12,111")
as.numeric(gsub(",", "", y))
# [1] 1200 20000 100 12111
This was also answered previously on R-Help (and in Q2 here).
Alternatively, you can pre-process the file, for instance with sed in unix...
Can't connect to local MySQL server through socket '/tmp/mysql.sock
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PratyayPratyay
1,90611 gold badge1313 silver badges1414 bronze badges
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Understanding scala enumerations
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150
the Enumeration trait has a type member Value representing the individual elements of the enumer...
What is the difference between mocking and spying when using Mockito?
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102
The answer is in the documentation:
Real partial mocks (Since 1.8.0)
Finally, after many inter...
How to throw a C++ exception
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#include <stdexcept>
int compare( int a, int b ) {
if ( a < 0 || b < 0 ) {
throw std::invalid_argument( "received negative value" );
}
}
The Standard Library comes with a nice collection of built-in exception objects you can throw. Keep in mind that you should always...
How to sum up elements of a C++ vector?
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Actually there are quite a few methods.
int sum_of_elems = 0;
C++03
Classic for loop:
for(std::vector<int>::iterator it = vector.begin(); it != vector.end(); ++it)
sum_of_elems += *it;
Using a standard algorithm:
#include <numeric>
sum_of_elems = std::accu...
How to pass an array into jQuery .data() attribute
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edited Dec 20 '13 at 18:08
answered May 20 '11 at 12:07
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Set time to 00:00:00
...oblem resetting hours in Java. For a given date I want to set the hours to 00:00:00.
12 Answers
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Iterating Through a Dictionary in Swift
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360
Dictionaries in Swift (and other languages) are not ordered. When you iterate through the dictio...