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What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
... sort compares the numbers as floats, this allows scientific notation eg 1.234E10 but is slower and subject to rounding error (1.2345678 could come after 1.2345679), numeric sort is just a regular alphabetic sort that knows 10 comes after 9.
See http://www.gnu.org/software/coreutils/manual/htm...
Deleting lines from one file which are in another file
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grep -v -x -f f2 f1 should do the trick.
Explanation:
-v to select non-matching lines
-x to match whole lines only
-f f2 to get patterns from f2
One can instead use grep -F or fgrep to match fixed strings from f2 rather than patterns (...
How to view UTF-8 Characters in VIM or Gvim
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62
Try to reload the document using:
:e! ++enc=utf8
If that works you should maybe change the f...
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...
Properties vs Methods
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152
From the Choosing Between Properties and Methods section of Design Guidelines for Developing Cla...
Function Pointers in Java
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126
The Java idiom for function-pointer-like functionality is an an anonymous class implementing an...
Working with huge files in VIM
I tried opening a huge (~2GB) file in VIM but it choked. I don't actually need to edit the file, just jump around efficiently.
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Gson: Directly convert String to JsonObject (no POJO)
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edited Nov 19 '15 at 12:56
pixel
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Convert a String In C++ To Upper Case
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29 Answers
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How to pass optional arguments to a method in C++?
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edited May 25 '18 at 10:44
AustinWBryan
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