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Hidden Features of PHP? [closed]
...is quite difficult to do in most other languages.
For example with the MS-Excel Stream handler you can create a MS Excel file in the following way:
$fp = fopen("xlsfile://tmp/test.xls", "wb");
if (!is_resource($fp)) {
die("Cannot open excel file");
}
$data= array(
array("Name" => "Bo...
A simple explanation of Naive Bayes Classification
...t number, and you are done.
Despite the name, Naive Bayes turns out to be excellent in certain applications. Text classification is one area where it really shines.
Hope that helps in understanding the concepts behind the Naive Bayes algorithm.
...
How to read a CSV file into a .NET Datatable
...
Here's an excellent class that will copy CSV data into a datatable using the structure of the data to create the DataTable:
A portable and efficient generic parser for flat files
It's easy to configure and easy to use. I urge you to...
那些曾被追捧的90后创业男神女神，还好吗？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...成名后马佳佳依然坚持在微博、微信上进行性教育答疑。写过搭讪大法，热衷调戏粉丝、言辞犀利且深谙屌丝心理。
点评：不可否认的是，马佳佳的创业经历似乎有些颠覆了大众对于互联网的认知，有需求就会有市场，这大家...
20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...历，知道如何监控系统使其保持正常运行。为此，我们编写了对于 Linux/Unix 系统管理员非常有用的并且最常用的20个命令行系统监视工具。这些命令可以在所有版本的 Linux 下使用去监控和查找系统性能的实际原因。这些监控命令...
iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
.mm文件相当于c++或者c文件
Safari其实没有把内存的缓存写到存储卡上
28.读取一般性文件
- (void)readFromTXT {
NSString *tmp;
NSArray *lines;//将文件转化为一行一行的
lines = [[NSString stringWithContentsOfFile:@"testFileReadLines.txt"] compo...
服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...说说TIME_WAIT和CLOSE_WAIT的区别，没想到越挖越深，这也是写博客总结的好处，总可以有意外的收获。
TIME_WAIT状态可以通过优化服务器参数得到解决，因为发生TIME_WAIT的情况是服务器自己可控的，要么就是对方连接的异常，要么...
reading from app.config file
...ion.ConfigurationFile i get C:\\Program Files\\Microsoft Office\\OFFICE11\\exCEL.EXE.config which is not my config file... what should i do
– Sathish
Mar 8 '10 at 8:58
...
What is the difference between sigaction and signal?
...
Excellent sigaction() demo from GCC themselves: gnu.org/software/libc/manual/html_node/…; and excellent signal() demo from GCC themselves: gnu.org/software/libc/manual/html_node/…. Notice that in the signal demo they avoi...
Keep only date part when using pandas.to_datetime
....
pd.to_datetime(df['Date'], utc=False)
You will be able to save it in excel without getting the error "ValueError: Excel does not support datetimes with timezones. Please ensure that datetimes are timezone unaware before writing to Excel."
...