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equals vs Arrays.equals in Java
..., i.e. is it the same array. As @alf points out it's not what most people em>x m>pect.
Arrays.equals(array1, array2) compares the contents of the arrays.
Similarly array.toString() may not be very useful and you need to use Arrays.toString(array).
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Split files using tar, gz, zip, or bzip2 [closed]
...dit: As @Charlie stated in the comment below, you might want to set a prefim>x m> em>x m>plicitly because it will use m>x m> otherwise, which can be confusing.
split -b 1024m "file.tar.gz" "file.tar.gz.part-"
// Creates files: file.tar.gz.part-aa, file.tar.gz.part-ab, file.tar.gz.part-ac, ...
Edit: Editing t...
How do I use itertools.groupby()?
I haven't been able to find an understandable em>x m>planation of how to actually use Python's itertools.groupby() function. What I'm trying to do is this:
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Optimizing away a “while(1);” in C++0m>x m>
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Does someone have a good em>x m>planation of why this was necessary to allow?
Yes, Hans Boehm provides a rationale for this in N1528: Why undefined behavior for infinite loops?, although this is WG14 document the rationale applies to C++ as well and the ...
How do I set the figure title and am>x m>es labels font size in Matplotlib?
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Functions dealing with tem>x m>t like label, title, etc. accept parameters same as matplotlib.tem>x m>t.Tem>x m>t. For the font size you can use size/fontsize:
from matplotlib import pyplot as plt
fig = plt.figure()
plt.plot(data)
fig.suptitle('test title', f...
Drop columns whose name contains a specific string from pandas DataFrame
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Here is one way to do this:
df = df[df.columns.drop(list(df.filter(regem>x m>='Test')))]
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What is the iPad user agent?
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Mozilla/5.0(iPad; U; CPU iPhone OS 3_2 like Mac OS m>X m>; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B314 Safari/531.21.10
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Converting a generic list to a CSV string
...s.
List<int> myValues;
string csv = String.Join(",", myValues.Select(m>x m> => m>x m>.ToString()).ToArray());
For the general case:
IEnumerable<T> myList;
string csv = String.Join(",", myList.Select(m>x m> => m>x m>.ToString()).ToArray());
As you can see, it's effectively no different. Beware that y...
pandas DataFrame: replace nan values with average of columns
...ng set! Imagine it like this: We have 100 data rows and we consider column m>x m>. The first 99 entries of m>x m> are NA. We want to split off row 100 as a test set. Let's assume row 100 has value 20 in column m>x m>. Then you will replace all entries in the training set in column m>x m> with 20, a value coming 100% fr...
Python list of dictionaries search
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You can use a generator em>x m>pression:
>>> dicts = [
... { "name": "Tom", "age": 10 },
... { "name": "Mark", "age": 5 },
... { "name": "Pam", "age": 7 },
... { "name": "Dick", "age": 12 }
... ]
>>> nem>x m>t(item for item ...