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How to make a query with group_concat in sql server [duplicate]
...@Devart i mean the inner join give result like in image...so to combine in all duplicate m.maskid , m.maskname , m.schoolid , s.schoolname to one row we need group by
– Amit Singh
Jul 11 '13 at 11:07
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get list of pandas dataframe columns based on data type
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this doesn't work if all your dataframe columns are returning object type, regardless of their actual contents
– user5359531
Jul 17 '17 at 23:46
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How can I find the number of days between two Date objects in Ruby?
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all of these steered me to the correct result, but I wound up doing
DateTime.now.mjd - DateTime.parse("01-01-1995").mjd
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Drop rows with all zeros in pandas data frame
I can use pandas dropna() functionality to remove rows with some or all columns set as NA 's. Is there an equivalent function for dropping rows with all columns having value 0?
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How do you select a particular option in a SELECT element in jQuery?
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This is wrong because you are SETTING the value of ALL the SELECT elements to the_value. .val is not selector/filter function! It is a property accessor and passing it that string SETS the value. I tried to take my upvote back but was too late after I reallized this in test...
LaTeX Optional Arguments
.... See the documentation for the other types of optional arguments that are allowed.
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Double vs single quotes
I'm really new to Ruby and I'm trying to understand if there's a specific time when I should use "" vs '' .
8 Answers
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What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
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General numeric 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.o...
Is Dvorak typing appropriate for programming? [closed]
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There are Dvorak layouts specifically for programming: http://www.kaufmann.no/roland/dvorak/
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how to draw directed graphs using networkx in python?
...f edge not in red_edges]
# Need to create a layout when doing
# separate calls to draw nodes and edges
pos = nx.spring_layout(G)
nx.draw_networkx_nodes(G, pos, cmap=plt.get_cmap('jet'),
node_color = values, node_size = 500)
nx.draw_networkx_labels(G, pos)
nx.draw_networkx_ed...