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Plot correlation matrix into a graph
...001F", "#B2182B", "#D6604D", "#F4A582", "#FDDBC7",
"#FFFFFF", "#D1E5F0", "#92C5DE", "#4393C3", "#2166AC", "#053061"))
col3 <- colorRampPalette(c("red", "white", "blue"))
col4 <- colorRampPalette(c("#7F0000","red","#FF7F00","yellow","#7FFF7F",
"cyan", "#007FFF", "blue","#000...
Best practice to call ConfigureAwait for all server-side code
...umer wants to deadlock, why should I prevent them?
– Quarkly
Jul 25 '18 at 15:56
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...
Most useful NLog configurations [closed]
...on options:
<logger name="Name.Space.Class1" minlevel="Debug" writeTo="f1" />
<logger name="Name.Space.Class1" levels="Debug,Error" writeTo="f1" />
<logger name="Name.Space.*" writeTo="f3,f4" />
<logger name="Name.Space.*" minlevel="Debug" maxlevel="Error" final="true" /> ...
What does the “at” (@) symbol do in Python?
...
If we go back to the function definition syntax documentation, we see:
@f1(arg)
@f2
def func(): pass
is roughly equivalent to
def func(): pass
func = f1(arg)(f2(func))
This is a demonstration that we can call a function that's a decorator first, as well as stack decorators. Functions, i...
How to use a variable to specify column name in ggplot
...
rate = 1:3,
mjr = LETTERS[c(4, 4, 5)],
gender = c("M", "F", "F")
)
f1 <- function(df, column) {
gg <- ggplot(df,
aes(x = name,
y = rate,
fill = .data[[column]],
group = .data[[column]])) +
geom_col() +
labs(fill = column)
...
How does a public key verify a signature?
...66e4 3696 76e1 a328 ac67 4ca3 iU..f.6.v..(.gL.
00000010: d6bb 5896 b6fe 68f1 55f1 437a 831c fee9 ..X...h.U.Cz....
00000020: 133a a7e9 005b 3fc5 88f7 5210 cdbb 2cba .:...[?...R...,.
00000030: 29f1 d52d 3131 a88b 78e5 333e 90cf 3531 )..-11..x.3>..51
00000040: 08c3 3df8 b76e 41f2 a84a c7fb 0c5b ...
Pretty-print C++ STL containers
... sample below to generate some values
struct fibonacci
{
fibonacci() : f1(0), f2(1) { }
int operator()()
{
int r = f1 + f2;
f1 = f2;
f2 = r;
return f1;
}
private:
int f1;
int f2;
};
int main()
{
std::vector<int> v;
std::generate_...
C++程序结果出现1.#inf 1.#IO - C/C++ - 清泛网 - 专注C/C++及内核技术
...IO是%lf格式化出来的字符串。极可能原因：除0了，也就是f1 = f2 0。做任何除法...表象原因：浮点数越界了（超过FLT_MAX最大值了），1.#IO是 %lf 格式化出来的字符串。
极可能原因：除0了，也就是f1 = f2 / 0。
做任何除法时，分...
Linq 多字段排序，二次排序 - .NET(C#) - 清泛IT论坛，有思想、有深度
Linq：ordered = source.OrderByDescending( t => t.f1 ).ThenBy( t => t.f2 );
类似SQL：select * from t1 order by f1 desc ,f2 asc
这种写法里 OrderBy、ThenBy 是升序的，OrderByDescending、ThenByDescending 是降序的。
Catch paste input
... you can use e.clipboardData to catch the data being pasted. If it doesn't pan out, have a look here.
$(this).live("paste", function(e) {
alert(e.clipboardData); // [object Clipboard]
});
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