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Order a List (C#) by many fields? [duplicate]
...ant to order a List of objects in C# by many fields, not just by one. For example, let's suppose I have a class called X with two Attributes, A and B, and I have the following objects, in that order:
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How to find common elements from multiple vectors?
...of positive integers, all in a list L. The following code works: N <- max(unlist(L)); LT <- lapply(L, tabulate, nbins = N); v <- do.call(pmin, LT); unlist(sapply(1:N, function(x) rep(x, v[x]))) Another way to do this would use the match function along with negative subscripting to iterative...
C# convert int to string with padding zeros?
... '0') - okay, but doesn't work for negative numbers
i.ToString("0000"); - explicit form
i.ToString("D4"); - short form format specifier
$"{i:0000}"; - string interpolation (C# 6.0+)
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How to test if a dictionary contains a specific key? [duplicate]
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'a' in x
and a quick search reveals some nice information about it: http://docs.python.org/3/tutorial/datastructures.html#dictionaries
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How to convert list to string [duplicate]
...(might be useful for long-string lists): print ("\n".join(['I', 'would', 'expect', 'multiple', 'lines']))
– Honeybear
Mar 3 '18 at 11:55
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jQuery: outer html() [duplicate]
...temporary element, then clone() and append():
$('<div>').append($('#xxx').clone()).html();
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Unpacking a list / tuple of pairs into two lists / tuples [duplicate]
...mportant in some cases (e.g. append to it). So the list1 and list2 in the example should really be tuple1 and tuple2.
– Causality
Feb 29 '16 at 20:40
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How to run a process with a timeout in Bash? [duplicate]
Is there a way to write a shell script that would execute a certain command for 15 seconds, then kill the command?
2 Answer...
Remove all special characters from a string in R?
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You need to use regular expressions to identify the unwanted characters. For the most easily readable code, you want the str_replace_all from the stringr package, though gsub from base R works just as well.
The exact regular expression depends upon...
How to download Xcode DMG or XIP file?
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You can find the DMGs or XIPs for Xcode and other development tools on https://developer.apple.com/download/more/ (requires Apple ID to login).
You must login to have a valid session before downloading anything below.
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