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How to programmatically display version/build number of target in iOS app?
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394
There are 2 Numbers!
The marketing release number is for the customers, called version number. ...
How to clear variables in ipython?
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answered Apr 8 '14 at 10:27
aisbaaaisbaa
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How to design a product table for many kinds of product where each product has many parameters
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RabbitMQ and relationship between channel and connection
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What is the canonical way to check for errors using the CUDA runtime API?
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Apply a function to every row of a matrix or a data frame
...:6, nrow=3, byrow=TRUE)
R> M
[,1] [,2]
[1,] 1 2
[2,] 3 4
[3,] 5 6
R> apply(M, 1, function(x) 2*x[1]+x[2])
[1] 4 10 16
R>
This takes a matrix and applies a (silly) function to each row. You pass extra arguments to the function as fourth, fifth, ... arguments to app...
How to Correctly Use Lists in R?
...Why do these two expressions not return the same result?
x = list(1, 2, 3, 4); x2 = list(1:4)
A list can contain any other class as each element. So you can have a list where the first element is a character vector, the second is a data frame, etc. In this case, you have created two different lis...