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What is the difference between sites-enabled and sites-available directory?
...is symlinked, the site
configured by it will be active once Apache2 is restarted.
See here https://help.ubuntu.com/lts/serverguide/httpd.html
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dplyr: “Error in n(): function should not be called directly”
...e = "lag_value", -c(Stock,Date, Close)) %>%
mutate(lag = str_sub(lag, start = 5) %>% as.numeric) %>%
group_by(Stock, lag) %>%
summarize(
cor = cor(x = Close, y = lag_value, use = "pairwise.complete.obs"),
cutoff_upper = 2/(n())^0.5,
cutoff_lower = -2/(n())^0.5
)
Pos...
Negative weights using Dijkstra's Algorithm
...if you were to store back pointers saying how to get from each node to the start node A, you'd end taking the wrong path back from C to A.
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AngularJs “controller as” syntax - clarification?
...ngular 2.0, or at least how we view the use of $scope. It might be good to start using controller as as the release of 2.0 nears.
Video link here for more discussion on it.
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Webstorm: “Cannot Resolve Directory”
This is starting to bug me and I'd either like it turned off or fixed. So Webstorm has a sweet feature in it's HTML parser that will attempt to resolve directories in strings that are supposed to reference a file in your project. For example:
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What is LINQ and what does it do? [closed]
...deration of the underlying way in which the query will be executed.
Let's start this exploration with the parts belonging to the .NET Framework (3.5).
LINQ To Objects - examine System.Linq.Enumerable for query methods. These target IEnumerable<T>, allowing any typed loopable collection to b...
How to sync with a remote Git repository?
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typo in commands, I think, you start with original, then switch to origin
– Benjol
Nov 30 '10 at 12:43
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Difference between JAX-WS, Axis2 and CXF
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And for the most part, if you start with the in-jdk JAX-WS impl, you can drop in CXF at any time and it would still work.
– Daniel Kulp
Jul 19 '12 at 19:23
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What is the best way to paginate results in SQL Server
...Returns the sequential number of a row within a partition of a result set, starting at 1 for the first row in each partition.
The following example returns rows with numbers 50 to 60 inclusive in the order of the OrderDate.
WITH OrderedOrders AS
(
SELECT
ROW_NUMBER() OVER(ORDER BY...
Preserving order with LINQ
... @symbiont: In many SQL operations there is no well-defined order to start with. Basically I'm trying to only make promises about things I can guarantee - such as LINQ to Objects.
– Jon Skeet
Aug 19 '16 at 8:48
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