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How do I retrieve the number of columns in a Pandas data frame?

How do you programmatically retrieve the number of columns in a pandas dataframe? I was hoping for something like: 6 Answer...
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Reducing the space between sections of the UITableView

.... I did already try to return 0 for -tableView:heightForFooterInSection: and -tableView:heightForHeaderInSection: but that doesn't change anything. ...
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How can I make my own event in C#?

... Here's an example of creating and using an event with C# using System; namespace Event_Example { //First we have to define a delegate that acts as a signature for the //function that is ultimately called when the event is triggered. //You wi...
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How do I set a conditional breakpoint in gdb, when char* x points to a string whose value equals “he

...x:20 if strcmp(y, "hello") == 0 20 is line number, x can be any filename and y can be any variable. share | improve this answer | follow | ...
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“find: paths must precede expression:” How do I specify a recursive search that also finds files in

... quotes around your file expression -- these will stop the shell (bash) expanding your wildcards. share | improve this answer | follow | ...
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Reactive Extensions bug on Windows Phone

...;(type); You are missing the type declaration. The compiler is guessing (and guessing wrong). Strictly type everything and it should run. share | improve this answer | foll...
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What is the IntelliJ shortcut to create a local variable?

... This is the Introduce Variable refactoring. By default, select some text, and then hit Ctrl + Alt + V (for Mac: ⌘+⌥+V). If the expression is incomplete or invalid, IntelliJ will still make a good guess about what you meant and try to fix it for you. ...
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Best way to work with transactions in MS SQL Server Management Studio

Let's say I have an SQL statement that's syntactically and semantically correct so it executes. 2 Answers ...
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Comparing Timer with DispatcherTimer

what is a difference between System.Windows.Forms.Timer() and System.Windows.Threading.DispatcherTimer() ? In which cases, we should use them? any best practices ? ...
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Check if a string contains a substring in SQL Server 2005, using a stored procedure

... CHARINDEX() searches for a substring within a larger string, and returns the position of the match, or 0 if no match is found if CHARINDEX('ME',@mainString) > 0 begin --do something end Edit or from daniels answer, if you're wanting to find a word (and not subcomponents of wo...