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Simpler way to create dictionary of separate variables?
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48
Are you trying to do this?
dict( (name,eval(name)) for name in ['some','list','of','vars'] )
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Iterating Over Dictionary Key Values Corresponding to List in Python
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43
dict.iteritems() was removed since Python3. You should use dict.items() instead
– Sergey
Jan 21 '16 ...
Should I index a bit field in SQL Server?
I remember reading at one point that indexing a field with low cardinality (a low number of distinct values) is not really worth doing. I admit I don't know enough about how indexes work to understand why that is.
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Compare two files line by line and generate the difference in another file
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answered Dec 28 '10 at 14:20
sorpigalsorpigal
22.3k77 gold badges5353 silver badges7272 bronze badges
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Counting the number of elements with the values of x in a vector
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You can just use table():
> a <- table(numbers)
> a
numbers
4 5 23 34 43 54 56 65 67 324 435 453 456 567 657
2 1 2 2 1 1 2 1 2 1 3 1 1 1 1
Then you can subset it:
> a[names(a)==435]
435
3
Or convert it into a data.frame if you're mor...
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...an't seem to find any resources pointing to how the matrix is used. It's a 4x5 matrix, but what I need to know is how I go about designing the matrix. Any ideas?
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How do I Search/Find and Replace in a standard string?
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edited Jun 22 '16 at 11:47
jotik
14.3k99 gold badges4646 silver badges103103 bronze badges
answered Se...
Does Ruby have a string.startswith(“abc”) built in method?
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4 Answers
4
Active
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Convert a number range to another range, maintaining ratio
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edited May 11 '14 at 5:14
answered May 30 '09 at 5:52
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How to write a simple Html.DropDownListFor()?
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edited May 23 '17 at 12:34
Community♦
111 silver badge
answered Jun 16 '10 at 23:35
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