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Reorder levels of a factor without changing order of values
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answered Mar 3 '10 at 23:34
Jonathan ChangJonathan Chang
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What is the “right” way to iterate through an array in Ruby?
...h has this method.
– xuinkrbin.
Sep 10 '12 at 17:40
add a comment
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OS X Bash, 'watch' command
...o something similar, change your_command to your_command 2>&1|head -10
– Mark Eirich
Nov 10 '13 at 15:36
10
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Disabling Strict Standards in PHP 5.4
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answered Aug 3 '15 at 14:10
TarasTaras
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std::string formatting like sprintf
...o do it first in a c-string, then copy it into a std::string:
char buff[100];
snprintf(buff, sizeof(buff), "%s", "Hello");
std::string buffAsStdStr = buff;
But I'm not sure why you wouldn't just use a string stream? I'm assuming you have specific reasons to not just do this:
std::ostring...
Reusing a PreparedStatement multiple times
... you could execute at once. You may for example want to execute them every 1000 batches:
public void executeBatch(List<Entity> entities) throws SQLException {
try (
Connection connection = dataSource.getConnection();
PreparedStatement statement = connection.prepareStateme...
Appending an element to the end of a list in Scala
... list
– Raffaele Rossi
Jul 1 '14 at 10:26
3
The cons operator has complexity O(1), as it works on...
Difference between break and continue in PHP?
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10 Answers
10
Active
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List comprehension on a nested list?
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>>> l = [['40', '20', '10', '30'], ['20', '20', '20', '20', '20', '30', '20'], ['30', '20', '30', '50', '10', '30', '20', '20', '20'], ['100', '100'], ['100', '100', '100', '100', '100'], ['100', '100', '100', '100']]
>>> new_list = [float...
Using C++ library in C code
... Greg HewgillGreg Hewgill
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