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How to store a command in a variable in a shell script?
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Use eval:
m>x m>="ls | wc"
eval "$m>x m>"
y=$(eval "$m>x m>")
echo "$y"
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Scala: Nil vs List()
... You could mention that Nil is more idiomatic.
– Rem>x m> Kerr
May 12 '11 at 17:30
6
Added System.id...
How to make an array of arrays in Java
... String[][] { array1, array2, array3, array4, array5 };
(The latter syntam>x m> can be used in assignments other than at the point of the variable declaration, whereas the shorter syntam>x m> only works with declarations.)
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Reference alias (calculated in SELECT) in WHERE clause
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You can't reference an alias em>x m>cept in ORDER BY because SELECT is the second last clause that's evaluated. Two workarounds:
SELECT BalanceDue FROM (
SELECT (InvoiceTotal - PaymentTotal - CreditTotal) AS BalanceDue
FROM Invoices
) AS m>x m>
WHERE BalanceDu...
Pass a data.frame column name to a function
I'm trying to write a function to accept a data.frame ( m>x m> ) and a column from it. The function performs some calculations on m>x m> and later returns another data.frame. I'm stuck on the best-practices method to pass the column name to the function.
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Matplotlib different size subplots
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import numpy as np
import matplotlib.pyplot as plt
# generate some data
m>x m> = np.arange(0, 10, 0.2)
y = np.sin(m>x m>)
# plot it
f, (a0, a1) = plt.subplots(1, 2, gridspec_kw={'width_ratios': [3, 1]})
a0.plot(m>x m>, y)
a1.plot(y, m>x m>)
f.tight_layout()
f.savefig('grid_figure.pdf')
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Moq: Invalid setup on a non-overridable member: m>x m> => m>x m>.GetByTitle(“asdf”)
Not sure how I can fim>x m> this, trying to do a unit test on the method "GetByTitle"
1 Answer
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What is the optimal Jewish toenail cutting algorithm?
...es per foot*, so there are only 5! = 120 unrestricted sequences.
Python em>x m>ample:
#seq is only valid when consecutive elements in the list differ by at least two.
def isValid(seq):
for i in range(len(seq)-1):
a = seq[i]
b = seq[i+1]
if abs(a-b) == 1:
return ...
Number of occurrences of a character in a string [duplicate]
...:
int count = test.Split('&').Length - 1;
Or with LINQ:
test.Count(m>x m> => m>x m> == '&');
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Python中的m>X m>[:,0]和m>X m>[:,1] - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
Python中的m>X m>[:,0]和m>X m>[:,1]m>X m>[:,0]是numpy中数组的一种写法，表示对一个二维数组，取该二维数组第一维中的所有数据，第二维中取第0个数据，直观来说，m>X m>[:,0]就是取所有 m>X m>[:,0]是numpy中数组的一种写法，表示对一个二维数组，取该二维...