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Redirect all output to file [duplicate]
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1213
That part is written to stderr, use 2> to redirect it. For example:
foo > stdout.txt 2&...
Apache Prefork vs Worker MPM
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Prefork and worker are two type of MPM apache provides. Both have their merits and demerits.
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What are the GCC default include directories?
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answered Jul 12 '11 at 15:01
Ihor KaharlichenkoIhor Kaharlichenko
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How to calculate the number of occurrence of a given character in each row of a column of strings?
...a")
q.data
# number string number.of.a
#1 1 greatgreat 2
#2 2 magic 1
#3 3 not 0
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How to find list intersection?
...y about duplicates then you can use set intersection:
>>> a = [1,2,3,4,5]
>>> b = [1,3,5,6]
>>> list(set(a) & set(b))
[1, 3, 5]
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How to redirect both stdout and stderr to a file [duplicate]
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If you want to log to the same file:
command1 >> log_file 2>&1
If you want different files:
command1 >> log_file 2>> err_file
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Why prefer two's complement over sign-and-magnitude for signed numbers?
...ve numbers. Check out the article on Wikipedia.
Say you have two numbers, 2 and -1. In your "intuitive" way of representing numbers, they would be 0010 and 1001, respectively (I'm sticking to 4 bits for size). In the two's complement way, they are 0010 and 1111. Now, let's say I want to add them.
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Phonegap Cordova installation Windows
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frigonfrigon
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Reverse Range in Swift
...sed() method on a range
for i in (1...5).reversed() { print(i) } // 5 4 3 2 1
Or stride(from:through:by:) method
for i in stride(from:5,through:1,by:-1) { print(i) } // 5 4 3 2 1
stide(from:to:by:) is similar but excludes the last value
for i in stride(from:5,to:0,by:-1) { print(i) } // 5 4 3...
dropping infinite values from dataframes in pandas?
... dropna:
df.replace([np.inf, -np.inf], np.nan).dropna(subset=["col1", "col2"], how="all")
For example:
In [11]: df = pd.DataFrame([1, 2, np.inf, -np.inf])
In [12]: df.replace([np.inf, -np.inf], np.nan)
Out[12]:
0
0 1
1 2
2 NaN
3 NaN
The same method would work for a Series.
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