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Why switch is faster than if
Lots of Java books describe the switch statement as being faster than the if else statement. But I did not find out anywhere why switch is faster than if .
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How to sort a dataFrame in python pandas by two or more columns?
Suppose I have a dataframe with columns a , b and c , I want to sort the dataframe by column b in ascending order, and by column c in descending order, how do I do this?
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An efficient way to transpose a file in Bash
I have a huge tab-separated file formatted like this
29 Answers
29
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Java recursive Fibonacci sequence
Please explain this simple code:
36 Answers
36
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How can I plot with 2 different y-axes?
I would like superimpose two scatter plots in R so that each set of points has its own (different) y-axis (i.e., in positions 2 and 4 on the figure) but the points appear superimposed on the same figure.
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Accessing items in an collections.OrderedDict by index
Lets say I have the following code:
9 Answers
9
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How to count total lines changed by a specific author in a Git repository?
Is there a command I can invoke which will count the lines changed by a specific author in a Git repository? I know that there must be ways to count the number of commits as Github does this for their Impact graph.
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How to sleep for five seconds in a batch file/cmd [duplicate]
Windows's Snipping tool can capture the screen, but sometimes I want to capture the screen after five seconds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.)
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Draw in Canvas by finger, Android
I need to build a project for drawing on canvas by fingers,
6 Answers
6
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Is there any boolean type in Oracle databases?
Is there any Boolean type in Oracle databases, similar to the BIT datatype in Ms SQL Server?
11 Answers
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