大约有 4,760 项符合查询结果（耗时：0.0146秒） [XML]
How to create a HashMap with two keys (Key-Pair, Value)?
I have a 2D array of Integers. I want them to be put into a HashMap. But I want to access the elements from the HashMap based on Array Index. Something like:
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How to test multiple variables against a value?
I'm trying to make a function that will compare multiple variables to an integer and output a string of three letters. I was wondering if there was a way to translate this into Python. So say:
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Swapping two variable value without using third variable
One of the very tricky questions asked in an interview.
27 Answers
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NOW() function in PHP
...e a PHP function that returns the date and time in the same format as the MySQL function NOW() ?
20 Answers
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How to smooth a curve in the right way?
Lets assume we have a dataset which might be given approximately by
9 Answers
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How to add texture to fill colors in ggplot2
I'm currently using scale_brewer() for fill and these look beautiful in color (on screen and via color printer) but print relatively uniformly as greys when using a black and white printer. I searched the online ggplot2 documentation but didn't see anything about adding textures to fill colors. ...
Does the ternary operator exist in R?
... the question asks, is there a control sequence in R similar to C's ternary operator ? If so, how do you use it? Thanks!
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Passing functions with arguments to another function in Python?
Is it possible to pass functions with arguments to another function in Python?
7 Answers
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Python: reload component Y imported with 'from X import Y'?
In Python, once I have imported a module X in an interpreter session using import X , and the module changes on the outside, I can reload the module with reload(X) . The changes then become available in my interpreter session.
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How to succinctly write a formula with many variables from a data frame?
... I have a response variable and a data containing three covariates (as a toy example):
6 Answers
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