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Difference between map, applymap and apply methods in Pandas
...thon functions can be used, too. Suppose you wanted to compute a formatted string from each floating point value in frame. You can do this with applymap:
In [120]: format = lambda x: '%.2f' % x
In [121]: frame.applymap(format)
Out[121]:
b d e
Utah -0.03 1.08 1.28
Ohi...
Why are empty catch blocks a bad idea? [closed]
... The relevant bit of code (in VB.NET, sorry) is:
For Each dllFile As String In dllFiles
Try
' Try to load the DLL as a .NET Assembly
Dim dll As Assembly = Assembly.LoadFile(dllFile)
' Loop through the classes in the DLL
For Each cls As Ty...
Origin null is not allowed by Access-Control-Allow-Origin
...equest header Origin: null
My PHP response header (Note that 'null' is a string). HTTP_REFERER allow cross-origin from a remote server to another.
header('Access-Control-Allow-Origin: '.(trim($_SERVER['HTTP_REFERER'],'/')?:'null'),true);
header('Access-Control-Allow-Credentials:true',true);
I ...
Remove menu and status bars in TinyMCE 4
...o customise what parts of the default menu bar are visible by specifying a string of enabled menus - e.g. menubar: 'file edit'
You can define your own menus like this:
menu : {
test: {title: 'Test Menu', items: 'newdocument'}
},
menubar: 'test'
...
RSpec controller testing - blank response.body
...my controllers with RSpec - the response.body call always returns an empty string. In browser everything renders correctly, and cucumber feature tests seem to get it right, but RSpec fails each and every time.
...
Best way to write to the console in PowerShell
... writes to the console, not to the pipeline (Do-Something will not get the string):
Write-Host "hello world" | Do-Something
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Reorder levels of a factor without changing order of values
...
I wish to add another case where the levels could be strings carrying numbers alongwith some special characters : like below example
df <- data.frame(x = c("15-25", "0-4", "5-10", "11-14", "100+"))
The default levels of x is :
df$x
# [1] 15-25 0-4 5-10 11-14 100+
# L...
What is the difference between the | and || or operators?
...c class Driver {
static int x;
static int y;
public static void main(String[] args)
throws Exception {
System.out.println("using double pipe");
if(setX() || setY())
{System.out.println("x = "+x);
System.out.println("y = "+y);
}
System.out.println("using single ...
How to rethrow InnerException without losing stack trace in C#?
...lls SetObjectData
// voila, e is unmodified save for _remoteStackTraceString
}
This wastes a lot of cycles compared to calling InternalPreserveStackTrace via cached delegate, but has the advantage of relying only on public functionality. Here are a couple of common usage patterns for stack-tr...
Best way to test SQL queries [closed]
...nd a case statement catenated together. The test name is just an arbitrary string. The case statement is just case when test statements then 'passed' else 'failed' end.
The test statements will just be SQL selects (subqueries) that must be true for the test to pass.
Here's our first test:
--a s...