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How to push new branch without history
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edited Jun 20 at 9:12
Community♦
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answered Sep 22 '12 at 11:32
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How to check an Android device is HDPI screen or MDPI screen?
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222
density = getResources().getDisplayMetrics().density;
// return 0.75 if it's LDPI
// return 1...
Repeat each row of data.frame the number of times specified in a column
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Here's one solution:
df.expanded <- df[rep(row.names(df), df$freq), 1:2]
Result:
var1 var2
1 a d
2 b e
2.1 b e
3 c f
3.1 c f
3.2 c f
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im...
Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
I have taken Problem #12 from Project Euler as a programming exercise and to compare my (surely not optimal) implementations in C, Python, Erlang and Haskell. In order to get some higher execution times, I search for the first triangle number with more than 1000 divisors instead of 500 as stated...
Make Heroku run non-master Git branch
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answered Jan 29 '13 at 22:54
jordelverjordelver
7,41211 gold badge2828 silver badges3737 bronze badges
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cannot convert data (type interface {}) to type string: need type assertion
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edited Jun 8 '15 at 18:32
answered Jan 12 '13 at 2:25
Ste...
What are the rules for the “…” token in the context of variadic templates?
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2 Answers
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Count occurrences of a char in plain text file
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edited Oct 21 '09 at 21:45
answered Oct 21 '09 at 21:37
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How to prevent errno 32 broken pipe?
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answered Aug 8 '12 at 14:40
Maksim SkurydzinMaksim Skurydzin
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How to index into a dictionary?
...te that these methods create a list of all keys, values or items in Python 2.x. So if you need them more then once, store the list in a variable to improve performance.)
If you do care about the order of the entries, starting with Python 2.7 you can use collections.OrderedDict. Or use a list of p...