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Call apply-like function on each row of dataframe with multiple arguments from each row
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12 Answers
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.NET 4.0 has a new GAC, why?
...s the new GAC . Does it mean now we have to manage two GACs, one for .NET 2.0-3.5 applications and the other for .NET 4.0 applications?
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A simple command line to download a remote maven2 artifact to the local repository?
I have a library that I distribute using maven 2. The typical user of this library doesn't use maven to build their applications, but is likely somewhat familiar with maven and probably has it installed.
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npm install vs. update - what's the difference?
...y-installed-semver-module": "^1.4.3" // ignores "1.4.3" -> "1.5.2"
"already-installed-versioned-module": "3.4.1" // ignores ignores
"not-yet-installed-versionless-module": "*", // installs installs
"not-yet-installed-semver-module": "^4.2.1" // installs inst...
How to find out element position in slice?
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answered Nov 29 '11 at 8:09
Evan ShawEvan Shaw
20.1k44 gold badges6262 silver badges5656 bronze badges
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promise already under evaluation: recursive default argument reference or earlier problems?
...occur we get:
f <- function(x, T) {
10 * sin(0.3 * x) * sin(1.3 * x^2) + 0.001 * x^3 + 0.2 * x + 80
}
g <- function(x, T, f. = f) { ## 1. note f.
exp(-f.(x)/T)
}
test<- function(g. = g, T = 1) { ## 2. note g.
g.(1,T)
}
test()
## [1] 8.560335e-37
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how does array[100] = {0} set the entire array to 0?
... not magic.
The behavior of this code in C is described in section 6.7.8.21 of the C specification (online draft of C spec): for the elements that don't have a specified value, the compiler initializes pointers to NULL and arithmetic types to zero (and recursively applies this to aggregates).
Th...
Installing Ruby Gem in Windows
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edited Feb 8 '17 at 12:07
reducing activity
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Add a new element to an array without specifying the index in Bash
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edited Dec 23 '09 at 9:18
answered Dec 23 '09 at 9:02
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