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Read an Excel file directly from a R script
...tem -- usually already true on MacOS and Linux, but takes an extra step on Windows, i.e. see http://strawberryperl.com/). There are various caveats, and alternatives, listed on the R wiki page.
The only reason I see not to do this directly is that you may want to examine the spreadsheet to see if i...
App Inventor 2 字典代码块 · App Inventor 2 中文网
...obal data 包含由 JSON 表示的字典，则 遍历键路径列表 块将生成列表 ["Tim", "Beaver" ]。
首先，选择“people” 标记的值，即人员列表。接下来，选择列表中的第一个元素。
最后，在此层级遍历 块选择该点对象中的值，即值 "Tim" 和 ...
How to call an external command?
...w do you call an external command (as if I'd typed it at the Unix shell or Windows command prompt) from within a Python script?
...
libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
... //初始化支持 安全套接字层。
CURL_GLOBAL_WIN32 //初始化win32套接字库。
CURL_GLOBAL_NOTHING //没有额外的初始化。
2）void curl_global_cleanup(void);
描述：在结束libcurl使用的时候，用来对curl_global_init做的工...
What are the differences between 'call-template' and 'apply-templates' in XSL?
...emplates can match a node, the one with the more specific match expression wins. If more than one matching template with the same specificity exist, the one declared last wins.
You can concentrate more on developing templates and need less time to do "plumbing". Your programs will become more power...
What is the difference between supervised learning and unsupervised learning? [closed]
...hat is close to the input vector in the Euclidean distance is announced as winner in the competition. That neuron is called best matching neuron,
i.e. x = arg min ║x - w║.
Cooperative phase:
the winning neuron determines the center of a topological neighborhood h of cooperating neurons. Thi...
How can I export tables to Excel from a webpage [closed]
...r-side language required, and most of all very EASY to understand. It's a win-win. The one thing it does have limits on, though, is strict formatting of columns.
If formatting and colors are absolute dealbreakers, the only 100% reliable, cross browser method I've found is to use a server-side lan...
How fast is D compared to C++?
...ations and disable all safety checks, compile your D program with the following DMD flags:
-O -inline -release -noboundscheck
EDIT: I've tried your programs with g++, dmd and gdc. dmd does lag behind, but gdc achieves performance very close to g++. The commandline I used was gdmd -O -release -inl...
What are best practices that you use when writing Objective-C and Cocoa? [closed]
...riable and method names with lower-case.
Whatever else you do, don't use Win16/Win32-style Hungarian notation. Even Microsoft gave up on that with the move to the .NET platform.
share
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How to configure an app to run correctly on a machine with a high DPI setting (e.g. 150%)?
I've created a simple Winforms application in C#. When I run the application on a machine with high DPI settings (e.g. 150%), the application gets scaled up. So far so good!
But instead of rendering the fonts with a higher font size, all texts are just scaled up, too. That of course leads to very bl...