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How to design a product table for many kinds of product where each product has many parameters
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237
You have at least these five options for modeling the type hierarchy you describe:
Single Tab...
Is there a CSS selector by class prefix?
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382
It's not doable with CSS2.1, but it is possible with CSS3 attribute substring-matching selecto...
Insert/Update Many to Many Entity Framework . How do I do it?
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edited May 23 '17 at 12:10
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answered Nov 23 '10 at 10:30
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How can I create a correlation matrix in R?
... data.frame(x1=rnorm(10),
x2=rnorm(10),
x3=rnorm(10))
cor(d) # get correlations (returns matrix)
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Why is it faster to check if dictionary contains the key, rather than catch the exception in case it
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edited Apr 25 '13 at 7:13
answered Apr 19 '13 at 9:48
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Numpy - add row to array
... If it is a 2D-array, how can you then compare its row to a number: i < 3?
EDIT after OP's comment:
A = array([[0, 1, 2], [0, 2, 0]])
X = array([[0, 1, 2], [1, 2, 0], [2, 1, 2], [3, 2, 0]])
add to A all rows from X where the first element < 3:
import numpy as np
A = np.vstack((A, X[X[:,0]...
The order of elements in Dictionary
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edited Oct 24 '10 at 18:38
answered Oct 24 '10 at 10:03
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Entity Framework .Remove() vs. .DeleteObject()
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edited May 23 '17 at 12:02
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answered Jul 18 '13 at 14:33
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CSS vertical alignment of inline/inline-block elements
...e; // Align children to middle of line
}
See: http://jsfiddle.net/dfmx123/TFPx8/1186/
NOTE: vertical-align is relative to the current text line, not the full height of the parent div. If you wanted the parent div to be taller and still have the elements vertically centered, set the div's line-he...
DLL and LIB files - what and why?
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There are static libraries (LIB) and dynamic libraries (DLL) - but note that .LIB files can be...