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How to set target hosts in Fabric file
... to include user in host string (like produser@prod.server.com) instead of setting env.user.
– Mikhail Korobov
Feb 16 '11 at 0:45
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What's the best way to check if a file exists in C?
... return 0 (success) because the file does not have the read-only attribute set, but you still may not have permission to write to the file.
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List files with certain extensions with ls and grep
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In bash, you can do "set -o nullglob", and you wont get the errors.
– camh
Sep 19 '09 at 4:10
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Can functions be passed as parameters?
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Bash empty array expansion with `set -u`
I'm writing a bash script which has set -u , and I have a problem with empty array expansion: bash appears to treat an empty array as an unset variable during expansion:
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How to split data into training/testing sets using sample function
I've just started using R and I'm not sure how to incorporate my dataset with the following sample code:
23 Answers
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Identify duplicates in a List
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The method add of Set returns a boolean whether a value already exists (true if it does not exist, false if it already exists, see Set documentation).
So just iterate through all the values:
public Set<Integer> findDuplicates(List<I...
How does Dijkstra's Algorithm and A-Star compare?
...ility function to find the vertex with minimum distance value, from
// the set of vertices not yet included in shortest path tree
int minDistance(int dist[], bool sptSet[])
{
// Initialize min value
int min = INT_MAX, min_index;
for (int v = 0; v < V; v++)
if (sptSet[v] == false &&...
Is it possible to Pivot data using LINQ?
... grouping by N-dimensions (n>2) and will work fine for rather small datasets. For large datasets (up to 1 mln of records and more) or for cases when pivot configuration cannot be hardcoded I've written special PivotData library (it is free):
var pvtData = new PivotData(new []{"CustID","OrderDate...
How do I check if a file exists in Java?
The only similar question on SO deals with writing the file and was thus answered using FileWriter which is obviously not applicable here.
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