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Append column to pandas dataframe
...
It seems in general you're just looking for a join:
> dat1 = pd.DataFrame({'dat1': [9,5]})
> dat2 = pd.DataFrame({'dat2': [7,6]})
> dat1.join(dat2)
dat1 dat2
0 9 7
1 5 6
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Why do we need the “finally” clause in Python?
... TypeError:
run_code2()
return None # The finally block is run before the method returns
finally:
other_code()
Compare to this:
try:
run_code1()
except TypeError:
run_code2()
return None
other_code() # This doesn't get run if there's an exception.
Other situations...
Capture HTML Canvas as gif/jpg/png/pdf?
... to turn the data URL into image data, then finally it can show the image. For a screen size image that's a huge amount of memory/copying/parsing. Just a suggestion
– gman
Jan 25 '17 at 8:26
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Entity Framework DateTime and UTC
...Type == typeof(DateTime) || x.PropertyType == typeof(DateTime?));
foreach (var property in properties)
{
var attr = property.GetCustomAttribute<DateTimeKindAttribute>();
if (attr == null)
continue;
var dt = property.Property...
Is there a numpy builtin to reject outliers from a list
... That method works good enough if m is sufficiently large (e.g. m=6), but for small values of m this suffers from the mean the variance not being robust estimators.
– Benjamin Bannier
May 15 '13 at 9:53
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What are the precise rules for when you can omit parenthesis, dots, braces, = (functions), etc.?
What are the precise rules for when you can omit (omit) parentheses, dots, braces, = (functions), etc.?
6 Answers
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What is a JavaBean exactly?
...ass -- a class is a JavaBean if it follows the standards.
There is a term for it because the standard allows libraries to programmatically do things with class instances you define in a predefined way. For example, if a library wants to stream any object you pass into it, it knows it can because yo...
Powershell equivalent of bash ampersand (&) for forking/running background processes
...n a command in the background and return interactive control to the user before the command has finished running. Is there an equivalent method of doing this in Powershell?
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AngularJS directive with default options
...plugins to Angular directives. I'd like to define a set of default options for my (element) directive, which can be overridden by specifying the option value in an attribute.
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Execute a terminal command from a Cocoa app
...tifier];
NSPipe *pipe = [NSPipe pipe];
NSFileHandle *file = pipe.fileHandleForReading;
NSTask *task = [[NSTask alloc] init];
task.launchPath = @"/usr/bin/grep";
task.arguments = @[@"foo", @"bar.txt"];
task.standardOutput = pipe;
[task launch];
NSData *data = [file readDataToEndOfFile];
[file clos...