大约有 19,300 项符合查询结果(耗时:0.0435秒) [XML]
Can dplyr package be used for conditional mutating?
...3 <- BASE_fun(DF))
# user system elapsed
# 11.676 1.530 13.319
identical(as.data.frame(ans1), as.data.frame(ans2))
# [1] TRUE
identical(as.data.frame(ans1), as.data.frame(ans3))
# [1] TRUE
Not sure if this is an alternative you'd asked for, but I hope it helps.
...
Requirejs domReady plugin vs Jquery $(document).ready()?
...equireJS and need to initialize something on DOM ready. Now, RequireJS provides the domReady plugin , but we already have jQuery's $(document).ready() , which is available to me since I have required jQuery.
...
Differences between git remote update and fetch?
...rep --color=always -R -C30 fetch Documentation/RelNotes/* | less
Then I did a less search for --all, and this is what I found under the release notes for Git version 1.6.6:
git fetch learned --all and --multiple options, to run fetch from many repositories, and --prune option to remove remote ...
Interface Builder: What are the UIView's Layout iOS 6/7 Deltas for?
...lta between layout position from iOS6 to iOS7.
In iOS7, some views can hide the status bar or have it transparent and, in effect, it is overlaid on top of your view. So if you put a UI element at (0.0, 0.0) on iOS6, it will appear below the status bar, but on iOS7 it would appear partially cover...
Choice between vector::resize() and vector::reserve()
... you want an array to which you expect to insert 1000 items and want to avoid a couple of allocations, use reserve().
EDIT: Blastfurnace's comment made me read the question again and realize, that in your case the correct answer is don't preallocate manually. Just keep inserting the elements at the...
Escape double quotes in parameter
...
Actually ^ didn't work for me, but \ did, per this answer: stackoverflow.com/questions/2403647/…
– kalenjordan
Aug 16 '12 at 22:05
...
RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
...lly used only for zone maintenance, these situations where you want to provide a CNAME at the zone's apex are quite common. Even though the RFC prohibits it, many engineers would like a behaviour such as: "follow the CNAME unless the query explicitly asks for the SOA record". That's why Route 53 pro...
how do I initialize a float to its max/min value?
... ret.second = *begin;
}
return ret;
}
The disadvantage of providing sample code -- I see others have already suggested the same idea.
Note that while the standard has a min_element and max_element, using these would require scanning through the data twice, which could be a problem if t...
Moving matplotlib legend outside of the axis makes it cutoff by the figure box
...ntly similar to calling tight_layout, but instead you allow savefig to consider extra artists in the calculation. This did in fact resize the figure box as desired.
import matplotlib.pyplot as plt
import numpy as np
plt.gcf().clear()
x = np.arange(-2*np.pi, 2*np.pi, 0.1)
fig = plt.figure(1)
ax = f...
Coroutine vs Continuation vs Generator
... realising it. Exceptions, for instance, can be thought of as a kind of inside-out continuation. I'll give you a Python based pseudocode example of a continuation.
Say Python had a function called callcc(), and this function took two arguments, the first being a function, and the second being a lis...
