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What exactly is the meaning of an API? [closed]
...g a reference to a library in your software or importing a function from a dll.
It is used in one form or another in almost all software, being explicitly called in your program or implicitly called by the compiler.
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How to do scanf for single char in C [duplicate]
... like it doesn't work for me. Unhandled exception at 0x799AF2F6 (ucrtbased.dll) in Deitel0805.exe: An invalid parameter was passed to a function that considers invalid parameters fatal. #include<stdio.h> #include<ctype.h> int main() { char c; printf("%s", "Please enter a character:")...
Strings in a DataFrame, but dtype is object
...ndarray. Every element in a ndarray must has the same size in byte. For int64 and float64, they are 8 bytes. But for strings, the length of the string is not fixed. So instead of save the bytes of strings in the ndarray directly, Pandas use object ndarray, which save pointers to objects, because of ...
Converting a generic list to a CSV string
... Try System.Linq.Enumerable (and of course you'll need System.Core.dll assembly, but presumably you already have that). You see, List<int> never has Select as a method. Rather, System.Linq.Enumerable defines Select as an extension method on IEnumerable<T>, of which List<int>...
Maximum length of HTTP GET request
...--------------------------------
Chrome 32779 >64k
Android 8192 >64k
Firefox >64k >64k
Safari >64k >64k
Internet Explorer 11 2047 5120
Edge 16 2047 ...
HTTP Error 404.3 - Not Found" while browsing wcf service on Windows Server 2008(64bit)
...lication based on .Net Framework 3.5 sp1 and hosted on windows server 2008(64bit).
7 Answers
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What is the most efficient way to loop through dataframes with pandas? [duplicate]
...e()-A)
print B
Result:
[0.5639059543609619, 0.017839908599853516, 0.005645036697387695]
This is probably not the best way to measure the time consumption but it's quick for me.
Here are some pros and cons IMHO:
.iterrows(): return index and row items in separate variables, but significantly...
Are there any free Xml Diff/Merge tools available? [closed]
...ments (you may wish to enable DisplayXMLFiles prefilter).
DisplayXMLFiles.dll - This plugin pretty-prints XML files nicely by inserting tabs and line breaks. This is useful for XML files that do not have line returns in convenient locations.
See also my feature comparison table.
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How add context menu item to Windows Explorer for folders [closed]
...ments to specify which icon to use. Example: %SystemRoot%\System32\shell32.dll,3
Display only on shift-click: adds an empty string value named Extended for key created at step 1
Customize menu entry label: change the value of default value for key created at step 1
Change menu entry location: add a ...
How to convert UTF-8 byte[] to string?
... Well, good luck unpacking it if it has non-ascii. Just use Convert.ToBase64String.
– Erik Bergstedt
Dec 12 '15 at 10:30
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