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Dump a NumPy array into a csv file
...port numpy
a = numpy.asarray([ [1,2,3], [4,5,6], [7,8,9] ])
numpy.savetxt("foo.csv", a, delimiter=",")
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Check if directory mounted with bash
... case, you should be able to use the -q option, like this:
mountpoint -q /foo/bar || mount -o bind /some/directory/here /foo/bar
Hope that helps.
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How to check if variable's type matches Type stored in a variable
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The other answers all contain significant omissions.
The is operator does not check if the runtime type of the operand is exactly the given type; rather, it checks to see if the runtime type is compatible with the given type:
class Animal {}...
Copying files from host to Docker container
...files.
One specific file can be copied TO the container like:
docker cp foo.txt mycontainer:/foo.txt
One specific file can be copied FROM the container like:
docker cp mycontainer:/foo.txt foo.txt
For emphasis, mycontainer is a container ID, not an image ID.
Multiple files contained by the ...
How to assign the output of a Bash command to a variable? [duplicate]
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In this specific case, note that bash has a variable called PWD that contains the current directory: $PWD is equivalent to `pwd`. (So do other shells, this is a standard feature.) So you can write your script like this:
#!/bin/bash
until [ "$PWD" = "/" ]; do
echo "$PWD"
ls ...
Input with display:block is not a block, why not?
...using the relatively unknown box-sizing:border-box style from CSS 3. This allows a 'true' 100% width on any element regardless of that elements' padding and/or borders.
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
...
What does the star operator mean, in a function call?
...ues = (1, 2)
s = sum(*values)
This will unpack the tuple so that it actually executes as:
s = sum(1, 2)
The double star ** does the same, only using a dictionary and thus named arguments:
values = { 'a': 1, 'b': 2 }
s = sum(**values)
You can also combine:
def sum(a, b, c, d):
return a ...
Finding Key associated with max Value in a Java Map
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Basically you'd need to iterate over the map's entry set, remembering both the "currently known maximum" and the key associated with it. (Or just the entry containing both, of course.)
For example:
Map.Entry<Foo, Bar> maxE...
How can I create a two dimensional array in JavaScript?
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var arr = Array.from(Array(2), () => new Array(4));
arr[0][0] = 'foo';
console.info(arr);
The same trick can be used to Create a JavaScript array containing 1...N
Alternatively (but more inefficient 12% with n = 10,000)
Array(2).fill(null).map(() => Array(4))
The performan...
Insert all values of a table into another table in SQL
I am trying to insert all values of one table into another. But the insert statement accepts values, but i would like it to accept a select * from the initial_Table. Is this possible?
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