大约有 13,906 项符合查询结果(耗时:0.0302秒) [XML]
Changing font size and direction of axes text in ggplot2
I am plotting a graph with a categorical variable on the x axis and a numerical variable on the y axis.
7 Answers
...
Getting command-line password input in Python
You know how in Linux when you try some Sudo stuff it tells you to enter the password and, as you type, nothing is shown in the terminal window (the password is not shown)?
...
Python circular importing?
...em up correctly.
The easiest way to do so is to use import my_module syntax, rather than from my_module import some_object. The former will almost always work, even if my_module included imports us back. The latter only works if my_object is already defined in my_module, which in a circular import ...
Return multiple values in JavaScript?
...t = values[0];
var second = values[1];
With the latest ECMAScript 6 syntax*, you can also destructure the return value more intuitively:
const [first, second] = getValues();
If you want to put "labels" on each of the returned values (easier to maintain), you can return an object:
function getV...
How do I delete unpushed git commits?
...EAD~1 will also keep all your changes but will leave you with an empty index rather than keep everything (as the --soft option would).
– Holloway
Aug 27 '14 at 10:05
...
Specify pane percentage in tmuxinator project
How can I specify a pane percentage in tmuxinator ?
1 Answer
1
...
How to get hex color value rather than RGB value?
...
var hexDigits = new Array
("0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f");
//Function to convert rgb color to hex format
function rgb2hex(rgb) {
rgb = rgb.match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/);
ret...
How dangerous is it to compare floating point values?
...
First of all, floating point values are not "random" in their behavior. Exact comparison can and does make sense in plenty of real-world usages. But if you're going to use floating point you need to be aware of how it works. Erring on the side of assuming floating point works like real numbers wil...
What characters are allowed in DOM IDs? [duplicate]
...
Actually there is a difference between HTML and XHTML.
As XHTML is XML the rules for XML IDs apply:
Values of type ID MUST match the Name production.
NameStartChar ::= ":" | [A-Z] | "_" | [a-z] | [#xC0-#xD6] |
[#xD8-#xF6] | [#xF8-#x2FF] |
...
How to count TRUE values in a logical vector
...
There are some problems when logical vector contains NA values.
See for example:
z <- c(TRUE, FALSE, NA)
sum(z) # gives you NA
table(z)["TRUE"] # gives you 1
length(z[z == TRUE]) # f3lix answer, gives you 2 (because NA indexing returns values)
So I think the safest is to use na.rm = TRUE:
s...