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Finding row index containing maximum value using R
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The advantage of this approach is that you can change the conditional inside to anything you need. Also, using col(y) and location of the hanging comma you can also extract columns.
y[,col(y)[y==max(y)]]
To find just the row for the max in a particular column, say column 2 you could use:
seq(...
How to atomically delete keys matching a pattern using Redis
In my Redis DB I have a number of prefix:<numeric_id> hashes.
23 Answers
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How to kill a child process after a given timeout in Bash?
...able to launch this process for a given amount of time, and kill it if it did not return successfully after a given amount of time.
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What does git push -u mean?
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How do you move a commit to the staging area in git?
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MongoDB: How to query for records where field is null or not set?
...ith plain null it interprets values like 0.0 as null and this solution avoids this
– Matthias Herrmann
Apr 27 '18 at 9:14
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What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?
...wered Nov 1 '10 at 16:10
Matt BridgesMatt Bridges
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Where does this come from: -*- coding: utf-8 -*-
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Create array of symbols
...what bizarro syntax Ruby has thrown at us this time. I highly recommend avoiding obscure language features when perfectly readable alternatives exist, i.e. [:address, :city, :state].
– Alex
Aug 9 '16 at 5:48
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entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
... references with City. But everytime I try to save my contact, which is validated I get the exception "ADO.Net Entity Framework An entity object cannot be referenced by multiple instances of IEntityChangeTracker"
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