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Progress indicator during pandas operations
...l.join()
results = sorted(results, key=lambda x:x[0])
results = pd.concat([split[1] for split in results])
return results
Bellow is a test code for a parallelized apply with tqdm "progress_apply".
from time import time
from tqdm import tqdm
tqdm.pandas()
if __name__ == '__main__':
...
Oracle Differences between NVL and Coalesce
...bc',10) from dual; will fail with Error - inconsistent datatypes: expected CHAR got NUMBER
Example for UNION use-case
SELECT COALESCE(a, sysdate)
from (select null as a from dual
union
select null as a from dual
);
fails with ORA-00932: inconsistent datatypes: expected CHAR ...
Realistic usage of the C99 'restrict' keyword?
...ons could be saved, as mentioned by supercat.
Consider for example:
void f(char *restrict p1, char *restrict p2) {
for (int i = 0; i < 50; i++) {
p1[i] = 4;
p2[i] = 9;
}
}
Because of restrict, a smart compiler (or human), could optimize that to:
memset(p1, 4, 50);
memset(...
Simple example of threading in C++
...
// do stuff
}
void task2() {
// do stuff
}
int main (int argc, char ** argv) {
using namespace boost;
thread thread_1 = thread(task1);
thread thread_2 = thread(task2);
// do other stuff
thread_2.join();
thread_1.join();
return 0;
}
...
How to make MySQL handle UTF-8 properly
... yesterday suggested that I should make sure my database can handle UTF-8 characters correctly. How I can do this with MySQL?
...
How to TryParse for Enum value?
... = Enum.ToObject(type, ul);
return true;
}
private static char[] _enumSeperators = new char[] { ',', ';', '+', '|', ' ' };
private static object EnumToObject(Type underlyingType, string input)
{
if (underlyingType == typeof(int))
{
int s;
...
Import CSV file to strongly typed data structure in .Net [closed]
...= new StringBuilder();
while (stringReader.Peek() != -1)
{
char readChar = (char)stringReader.Read();
if (readChar == '\n' || (readChar == '\r' && stringReader.Peek() == '\n'))
{
// If it's a \r\n combo consume the \n part and throw it away.
...
Can I embed a custom font in an iPhone application?
....ttf fonts in the application's main bundle:
BOOL GSFontAddFromFile(const char * path);
NSUInteger loadFonts()
{
NSUInteger newFontCount = 0;
for (NSString *fontFile in [[NSBundle mainBundle] pathsForResourcesOfType:@"ttf" inDirectory:nil])
newFontCount += GSFontAddFromFile([fontFil...
Initializing a static std::map in C++
...
Using C++11:
#include <map>
using namespace std;
map<int, char> m = {{1, 'a'}, {3, 'b'}, {5, 'c'}, {7, 'd'}};
Using Boost.Assign:
#include <map>
#include "boost/assign.hpp"
using namespace std;
using namespace boost::assign;
map<int, char> m = map_list_of (1, 'a')...
AJAX Mailchimp signup form integration
...method'),
url: $form.attr('action').replace('/post?', '/post-json?').concat('&c=?'),
data: $form.serialize(),
timeout: 5000, // Set timeout value, 5 seconds
cache : false,
dataType : 'jsonp',
contentType: "application/json; charset=utf-8",
error...