expression Questions
1
Does the CMake IF statement have an OR option as well? Something like: IF (NOT this OR that) ... ENDIF?
I have the line if (NOT ${TARGET_PLATFORM} STREQUAL "test"), which removes certain build fil...
Unifoliate asked 2/10, 2013 at 18:23
1
Solved
Good morning,
I am making a heat map in ggplot of correlations between specific phenotypes. I would like to label each tile with the R^2 for the association.
I have a correlation matrix, max_all, ...
Synthiasyntonic asked 4/9, 2015 at 8:42
2
Solved
I have an Expression<Func<Entity, string>> that can be either a property or a nested property accessor
y => y.SearchColumn
or
y => y.SubItem.SubColumn
I am building up an e...
Expose asked 31/8, 2015 at 20:28
1
Solved
I'm looking to get a value from an
var guid = Guid.Parse("SOMEGUID-GUID-GUID-GUID-SOMEGUIDGUID");
Expression<Func<Someobject, bool>> selector = x => x.SomeId == guid;
For ...
Misvalue asked 31/8, 2015 at 10:2
2
Solved
Both seem to return the same type, and have the same signature.
So what is the difference between them, and when should we use each?
Catatonia asked 29/8, 2015 at 8:18
2
Solved
If I execute the test function in the following code fragment:
function pointInside( r, p ) {
var result =
( p.x >= r.location.x - r.size.width * 0.5 ) &&
( p.x <= r.locatio...
Knit asked 2/8, 2015 at 11:39
1
Solved
Let us assume we have an expression in LaTeX form:
var latex =\frac{x}{\frac{y}{y}}
So output required is:
output= (x)/((y)/(y));
I tried out an example as stated in the link: Convert LaTeX t...
Tripper asked 23/7, 2015 at 12:53
5
Solved
What's the "right" way to do the following as a boolean expression?
for i in `ls $1/resources`; do
if [ $i != "database.db" ]
then
if [ $i != "tiles" ]
then
if [ $i != "map.pdf" ]
then
if [...
Coble asked 7/9, 2008 at 20:51
1
Solved
I'm trying to use the code below to generate a simple scatter plot with a correlation coefficient that would have italicised r placed on the plot.
data(mtcars)
# Load required libraries
require(g...
Heterosexuality asked 10/7, 2015 at 9:58
8
Solved
In C, it's legal to write something like:
int foo = +4;
However, as far as I can tell, the unary plus (+) in +4 is a no-op. Is it?
Shalondashalt asked 9/7, 2011 at 19:30
3
Solved
In the below code:
final int a;
a=2;
byte b=a; // error: possible loss of precision
Why do I get this error? Isn't a final variable compile time constant expression and hence implicitly narrowed...
Mckinnon asked 11/6, 2015 at 15:33
3
Solved
In JavaScript, if you put some kind of expression on the left side of an assignment expression, the engine will throw a ReferenceError. For example,
// 'this' on the left side
this = window; // Re...
Only asked 11/6, 2015 at 1:54
7
Solved
After reading this answer about undefined behavior and sequence points, I wrote a small program:
#include <stdio.h>
int main(void) {
int i = 5;
i = (i, ++i, 1) + 1;
printf("%d\n"...
Nodule asked 3/6, 2015 at 8:12
3
Solved
Suppose I have the following clojure functions:
(defn a [x] (* x x))
(def b (fn [x] (* x x)))
(def c (eval (read-string "(defn d [x] (* x x))")))
Is there a way to test for the equality of the...
Bogart asked 22/2, 2012 at 11:15
2
Solved
Here is the code:
mf = function(..., expr) {
expr = substitute(expr)
print(class(expr))
print(str(expr))
expr
}
mf(a = 1, b = 2, expr = {matrix(NA, 4, 4)})
Output:
[1] "{"
length 2 { matrix...
Transitive asked 31/5, 2015 at 19:52
3
Solved
I have a class that I use for the checking method arguments, which you call in the form:
public void SomeMethod(string anArg)
{
Ensure.ArgumentNotNull(() => anArg);
}
If the argument is null...
Histogenesis asked 15/2, 2011 at 9:31
3
Solved
I'm getting this exception when I run this code.
ParameterExpression of type System.Int64 cannot be used for delegate parameter of type System.Object
I know it's something to do with the Expre...
Batholomew asked 16/5, 2015 at 3:20
2
Solved
I want to implement a simple arithmetic expression tree data structure in c++, such that an expression tree object is initialised by: ExprTree(operator, expression1, expression2). Here is an exampl...
Exhaustless asked 15/5, 2015 at 16:29
7
Solved
I had a coding interview over the phone and was asked this question:
Given a String (for example):
"aksdbaalaskdhfbblajdfhacccc aoudgalsaa bblisdfhcccc"
and an expression (for exampl...
Electrophoresis asked 29/4, 2015 at 15:47
4
Can you do an if-then-else statement inside a JSP expression?
EDIT : Specifically I was looking for a JSP solution, not a JSTL solution. But some JSTL solutions below are highly rated and are very...
Elsewhere asked 25/1, 2012 at 18:20
1
Solved
I try to write a simple example using Expressions, but have a strange bug: I can't use PropertyExpression at compile time. When I write it I get an error and it doesn't compile
But in runtime at ...
Hamburger asked 30/4, 2015 at 8:11
1
Solved
I want to write a function that evaluates an expression in a data frame, but one that does so using expressions that may or may not contain user-defined objects.
I think the magic word is "non-stan...
Huynh asked 22/4, 2015 at 17:27
2
Solved
Given a dictionary of values,
values = {:A => 3, :B => 1}
turn an (arbitrary) expression like
expr = :(2*A)
into a function foo(values) that evaluates the expression, so in this case foo(...
Pictograph asked 21/4, 2015 at 17:2
2
Solved
We use the Shunting-Yard algorithm to evaluate expressions. We can validate the expression by simply applying the algorithm. It fails if there are missing operands, miss-matched parenthesis, and ot...
Etsukoetta asked 14/4, 2015 at 18:38
1
Solved
For some reason, the following code compiles normally:
public double getSomeDouble() {
return "" != null ? 3.7d : null;
}
I would normally expect Eclipse to mark it as an error (null can not be...
Tahr asked 14/4, 2015 at 9:48
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