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pandas: How do I split text in a column into multiple rows?
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This splits the Seatblocks by space and gives each its own row.
In [43]: df
Out[43]:
CustNum CustomerName ItemQty Item Seatblocks ItemExt
0 32363 McCartney, Paul 3 F04 2:218:10:4,6 60
1 31316 Lennon, John 25 F01 1:13:36:...
C pointer to array/array of pointers disambiguation
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445
int* arr[8]; // An array of int pointers.
int (*arr)[8]; // A pointer to an array of integers
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How do you set your pythonpath in an already-created virtualenv?
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mdeousmdeous
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How to print out more than 20 items (documents) in MongoDB's shell?
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edited Feb 6 at 9:47
Wilfred Knievel
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answ...
Creating an array of objects in Java
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This is correct.
A[] a = new A[4];
...creates 4 A references, similar to doing this:
A a1;
A a2;
A a3;
A a4;
Now you couldn't do a1.someMethod() without allocating a1 like this:
a1 = new A();
Similarly, with the array you need to do this:
a[0] = n...
How do you match only valid roman numerals with a regular expression?
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You can use the following regex for this:
^M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})$
Breaking it down, M{0,4} specifies the thousands section and basically restrains it to between 0 and 4000. It's a relatively simple:
0: <empty> matched by M{0}
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Efficient evaluation of a function at every cell of a NumPy array
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164
You could just vectorize the function and then apply it directly to a Numpy array each time you ...
Correct way to find max in an Array in Swift
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Given:
let numbers = [1, 2, 3, 4, 5]
Swift 3:
numbers.min() // equals 1
numbers.max() // equals 5
Swift 2:
numbers.minElement() // equals 1
numbers.maxElement() // equals 5
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Parsing JSON array into java.util.List with Gson
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edited Jun 27 '17 at 9:48
answered Aug 31 '13 at 11:32
M...