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Paste multiple columns together

... 104 # your starting data.. data <- data.frame('a' = 1:3, 'b' = c('a','b','c'), 'c' = c('d', 'e', ...
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Difference between 'struct' and 'typedef struct' in C++?

... | edited Jul 14 '18 at 17:08 YePhIcK 5,31722 gold badges2121 silver badges4545 bronze badges ...
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How can you determine a point is between two other points on a line segment?

... | edited Feb 14 '18 at 18:55 dtasev 30422 silver badges1111 bronze badges answered Nov 29 '0...
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how to draw directed graphs using networkx in python?

... 'G'), ('B', 'F'), ('C', 'G')]) val_map = {'A': 1.0, 'D': 0.5714285714285714, 'H': 0.0} values = [val_map.get(node, 0.25) for node in G.nodes()] # Specify the edges you want here red_edges = [('A', 'C'), ('E', 'C')] edge_colours = ['black' if not edge in red_edges else 'red'...
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How can I remove all text after a character in bash?

...| edited Jun 10 '18 at 5:04 XtraSimplicity 4,12011 gold badge2323 silver badges2626 bronze badges answer...
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In C++, what is a virtual base class?

... 542 Virtual base classes, used in virtual inheritance, is a way of preventing multiple "instances" ...
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What is the idiomatic Go equivalent of C's ternary operator?

... answered Nov 14 '13 at 14:08 Gustavo NiemeyerGustavo Niemeyer 17.3k33 gold badges5151 silver badges4545 bronze badges ...
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Pandas conditional creation of a series/dataframe column

... | edited Jan 9 at 21:47 cs95 231k6060 gold badges390390 silver badges456456 bronze badges answered ...
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How can I use a DLL file from Python?

... ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p) # ... thru 4. hllApiParams = (1, "p1", 0), (1, "p2", 0), (1, "p3",0), (1, "p4",0), # Actually map the call ("HLLAPI(...)") to a Python name. hllApi = hllApiProto (("HLLAPI", hllDll), hllApiParams) # This is how you can actually call ...
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Permutations in JavaScript?

... | edited Feb 6 '15 at 2:44 rgajrawala 1,76611 gold badge1717 silver badges3333 bronze badges answered ...