大约有 40,000 项符合查询结果(耗时:0.0820秒) [XML]
Find Results not displaying Results
...ws displays summary information, but not the actual lines matched. This is all my Find Results window displays:
7 Answers
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R memory management / cannot allocate vector of size n Mb
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Consider whether you really need all this data explicitly, or can the matrix be sparse? There is good support in R (see Matrix package for e.g.) for sparse matrices.
Keep all other processes and objects in R to a minimum when you need to make obj...
jQuery - Get Width of Element when Not Visible (Display: None)
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@Tim Banks very nice! I actually wrote a similar extension. What i've been noticing is very strange behavior in Firefox, width() returns 0, for your and my plugin both. And on top of that it never factors in padding. jsfiddle.net/67cgB. I'm having the ...
How to count lines in a document?
I have lines like these, and I want to know how many lines I actually have...
24 Answers
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Subset of rows containing NA (missing) values in a chosen column of a data frame
...ated. THe point is to use is.na, I wrongly interpreted you wanted to check all variables.
– Joris Meys
Nov 2 '11 at 21:34
3
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How to add multi line comments in makefiles
...efile for debugging reasons, and adding a backslash on every line is not really practical. If you are using GNU make, I suggest you use the ifeq directive with a deliberately false expression. For example:
ifeq ("x","y")
# here's all your 'commented' makefile content...
endif
Hope that helps.
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C++: What is the size of an object of an empty class?
...can be 1 because alignment doesn't matter here, as there is nothing to actually look at.
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How to find the files that are created in the last hour in unix
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This is great and all, but these flags don't exist on Solaris find that I'm using. OP said Unix and I think these are Linux only.
– jiggy
Apr 17 '14 at 19:53
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Opacity of background-color, but not the text [duplicate]
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Use rgba!
.alpha60 {
/* Fallback for web browsers that don't support RGBa */
background-color: rgb(0, 0, 0);
/* RGBa with 0.6 opacity */
background-color: rgba(0, 0, 0, 0.6);
/* For IE 5.5 - 7*/
filter:progid:DXImageTransform.Micr...
git difftool, open all diff files immediately, not in serial
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This feature works well with Meld 3.14.2 for example, and lets you browse all modified files:
git difftool --dir-diff --tool=meld HEAD~ HEAD
This is a handy Bash function:
git-diff-meld() (
git difftool --dir-diff --tool=meld "${1:-HEAD~}" "${2:-HEAD}"
)
The answer that follows applies to g...
