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Create a dictionary on a list with grouping
...ecialVariableWhichIsAListOfDemoClass
.GroupBy(m>x m> => m>x m>.GroupKey)
.ToDictionary(gdc => gdc.Key, gdc => gdc.ToList());
You'd make it shorter if you used shorter variable names too, of course :)
However, might I suggest that a Lookup m...
warning about too many open figures
In a script where I create many figures with fim>x m>, am>x m> = plt.subplots(...) , I get the warning RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface (matplotlib.pyplot.figure) are retained until em>x m>plicitly closed and may consume too much memory.
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What does value & 0m>x m>ff do in Java?
...values1, so what happens is:
value is promoted to an int (ff ff ff fe).
0m>x m>ff is an int literal (00 00 00 ff).
The & is applied to yield the desired value for result.
(The point is that conversion to int happens before the & operator is applied.)
1Well, not quite. The & operator work...
LINQ Ring: Any() vs Contains() for Huge Collections
...() on a List is O(n), while Contains() on a HashSet is O(1).
Any() is an em>x m>tension method, and will simply go through the collection, applying the delegate on every object. It therefore has a complem>x m>ity of O(n).
Any() is more flem>x m>ible however since you can pass a delegate. Contains() can only acce...
Difference between “git add -A” and “git add .”
...
This answer only applies to Git version 1.m>x m>. For Git version 2.m>x m>, see other answers.
Summary:
git add -A stages all changes
git add . stages new files and modifications, without deletions
git add -u stages modifications and deletions, without new files
Detai...
Update a record without first querying?
...
can you provide an em>x m>ample?
– Bart Calim>x m>to
May 23 '12 at 15:01
17
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Add legend to ggplot2 line plot
...
All that's left is a simple ggplot command:
ggplot(dd) + geom_line(aes(m>x m>=fecha, y=value, colour=variable)) +
scale_colour_manual(values=c("red","green","blue"))
Em>x m>ample plot
share
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improv...
how to use m>X m>Path with m>X m>Document?
...but it seems that the solution didn't work out in my case: Weirdness with m>X m>Document, m>X m>Path and namespaces
3 Answers
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How to remove illegal characters from path and filenames?
...bably unintended one.
Edit: Or a potentially 'better' solution, using Regem>x m>'s.
string illegal = "\"M\"\\a/ry/ h**ad:>> a\\/:*?\"| li*tt|le|| la\"mb.?";
string regem>x m>Search = new string(Path.GetInvalidFileNameChars()) + new string(Path.GetInvalidPathChars());
Regem>x m> r = new Regem>x m>(string.Format(...
How can I concatenate regem>x m> literals in JavaScript?
...
Here is how to create a regular em>x m>pression without using the regular em>x m>pression literal syntam>x m>. This lets you do arbitary string manipulation before it becomes a regular em>x m>pression object:
var segment_part = "some bit of the regem>x m>p";
var pattern = new RegEm>x m>...