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Pandas percentage of total with groupby
This is obviously simple, but as a numpy newbe I'm getting stuck.
14 Answers
14
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Linux command to list all available commands and aliases
...ates.
– Ants Aasma
Jul 21 '10 at 20:51
1
This does not find commands that are symlinks to executa...
How to group time by hour or by 10 minutes
...ght now.
– Lopsided
Jan 8 '19 at 16:51
2
for SECOND as DATEPART I get an error message (The date...
Android draw a Horizontal line between views
...
You should use the new lightweight View Space to draw dividers.
Your layout will load faster if you will use Space instead of View.
Horizontal divider:
<android.support.v4.widget.Space
android:layout_height="1dp"
android:la...
What is the “Execute Around” idiom?
...nputStreamAction action)
throws IOException
{
InputStream stream = new FileInputStream(filename);
try {
action.useStream(stream);
} finally {
stream.close();
}
}
// Calling it
executeWithFile("filename.txt", new InputStreamAction()
{
public void useStream(Inp...
How to drop a list of rows from Pandas dataframe?
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newcomers to python: note that if you want to drop these rows and save them in the same dataframe (inplace) you also need to add the axis=0 (0 = rows, 1 = columns) and inplace=True as in df.drop(df.index[[1,3]], axis=0, inpla...
What is the difference between up-casting and down-casting with respect to class variable
...n two classes.
Downcasting would be something like this:
Animal animal = new Dog();
Dog castedDog = (Dog) animal;
Basically what you're doing is telling the compiler that you know what the runtime type of the object really is. The compiler will allow the conversion, but will still insert a runti...
Java equivalent to #region in C#
...ding
– Daniel Saidi
Feb 5 '15 at 17:51
5
@DanielSaidi oh, the horror! :) the guy in the article ...
How do you enable “Enable .NET Framework source stepping”?
...kpoint within the .net source (for example, go to the Breakpoints tab, say New->Break at Function, and enter System.Windows.Forms.Form.Form) or step into one of the .net methods in that dll.
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Default value of a type at Runtime [duplicate]
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There's really only two possibilities: null for reference types and new myType() for value types (which corresponds to 0 for int, float, etc) So you really only need to account for two cases:
object GetDefaultValue(Type t)
{
if (t.IsValueType)
return Activator.CreateInstance(t);
...