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Convert tuple to list and back
I'm currently working on a map editor for a game in pygame, using tile maps.
The level is built up out of blocks in the following structure (though much larger):
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Is there a simple way to remove multiple spaces in a string?
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29 Answers
29
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C#位运算符（C#按位与、按位或 等） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...辑非运算
整型，字符型
整型
1
~a
&
位逻辑与运算
2
a & b
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位逻辑或运算
2
a | b
^
位逻辑异或运算
2
a ^ b
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What is the easiest way to remove the first character from a string?
Example:
15 Answers
15
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How to compare software version number using js? (only number)
Here is the software version number:
45 Answers
45
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Use CSS3 transitions with gradient backgrounds
I'm trying to transition on hover with css over a thumbnail so that on hover, the background gradient fades in. The transition isn't working, but if I simply change it to an rgba() value, it works fine. Are gradients not supported? I tried using an image too, it won't transition the image either.
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Difference between break and continue statement
Can anyone tell me the difference between break and continue statements?
21 Answers
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How to randomize (or permute) a dataframe rowwise and columnwise?
I have a dataframe (df1) like this.
8 Answers
8
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pandas dataframe columns scaling with sklearn
I have a pandas dataframe with mixed type columns, and I'd like to apply sklearn's min_max_scaler to some of the columns. Ideally, I'd like to do these transformations in place, but haven't figured out a way to do that yet. I've written the following code that works:
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Adding a column to a data.frame
I have the data.frame below. I want to add a column that classifies my data according to column 1 ( h_no ) in that way that the first series of h_no 1,2,3,4 is class 1, the second series of h_no (1 to 7) is class 2 etc. such as indicated in the last column.
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