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How can we make xkcd style graphs?
...library(xkcd) Loading required package: extrafont Registering fonts with R Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) : there is no package called ‘acepack’ Error: package or namespace load failed for ‘xkcd’ and trying for acepack yields > ...
What's wrong with this 1988 C code?
...to him what was going on. He would have changed the macro for IN, with no errors and then the macro for OUT with the two errors, the second of which would be complaining about the semicolon he had just added.
– jmoreno
Dec 27 '11 at 22:07
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Why is it important to override GetHashCode when Equals method is overridden?
...unchecked
{
var result = 0;
result = (result * 397) ^ m_someVar1;
result = (result * 397) ^ m_someVar2;
result = (result * 397) ^ m_someVar3;
result = (result * 397) ^ m_someVar4;
return result;
}
}
As you can see it just tries to guess a goo...
Is there a difference between using a dict literal and a dict constructor?
...ith python 3.4 + pycharm is that the dict() constructor
produces a "syntax error" message if the number of keys exceeds 256.
I prefer using the dict literal now.
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C#: How to convert a list of objects to a list of a single property of that object?
...ve made
– Shawn C.
Jan 26 '18 at 14:05
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Hidden features of Scala
... more. Every Regex object in Scala has an extractor (see answer from oxbox_lakes above) that gives you access to the match groups. So you can do something like:
// Regex to split a date in the format Y/M/D.
val regex = "(\\d+)/(\\d+)/(\\d+)".r
val regex(year, month, day) = "2010/1/13"
The secon...
Converting newline formatting from Mac to Windows
...t my upvote.
– null
Jan 12 '15 at 1:05
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Generate JSON string from NSDictionary in iOS
...)
-(NSString*) bv_jsonStringWithPrettyPrint:(BOOL) prettyPrint {
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:self
options:(NSJSONWritingOptions) (prettyPrint ? NSJSONWritingPrettyPrinted : 0)
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Convert a list to a data frame
I have a nested list of data. Its length is 132 and each item is a list of length 20. Is there a quick way to convert this structure into a data frame that has 132 rows and 20 columns of data?
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Quicksort: Choosing the pivot
When implementing Quicksort, one of the things you have to do is to choose a pivot. But when I look at pseudocode like the one below, it is not clear how I should choose the pivot. First element of list? Something else?
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