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To find whether a column exists in data frame or not
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202
Assuming that the name of your data frame is dat and that your column name to check is "d", yo...
Linux command: How to 'find' only text files?
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answered Dec 1 '12 at 13:27
crudcorecrudcore
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Removing X-Powered-By
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238
I think that is controlled by the expose_php setting in PHP.ini:
expose_php = off
Decide...
Heroku error: “Permission denied (public key)”
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217
Try heroku keys:add <path-to-your-public-key>.
For example, heroku keys:add ~/.ssh/id_...
TreeMap sort by value
...Override public int compare(Map.Entry<K,V> e1, Map.Entry<K,V> e2) {
int res = e1.getValue().compareTo(e2.getValue());
return res != 0 ? res : 1;
}
}
);
sortedEntries.addAll(map.entrySet());
return sortedEntries;
}
Now you ...
Red black tree over avl tree
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126
What's the main reason for choosing Red black trees instead of AVL trees?
Both red-black t...
Correct way to pause Python program
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221
Seems fine to me (or raw_input() in Python 2.X). Alternatively you could use time.sleep() if y...
Correct way to find max in an Array in Swift
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12 Answers
12
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Python - When to use file vs open
...en file and open in Python? When should I use which one? (Say I'm in 2.5)
6 Answers
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java.lang.OutOfMemoryError: Java heap space in Maven
...ens. I googled it for solutions and have tried to export MAVEN_OPTS=-Xmx1024m , but it did not work.
Anyone know other solutions for this problem? I am using maven 3.0
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