I would like to create a simple filter for VirtualDub application. The filter had to invert colors on image. How to create a simple loop, which would invert the colors for each pixel?
in R , when i use "print", i can see all the values, but how can i save this as a vector
for example, in for loop,
for (i in 1:10), i want the value of A , when i= 1,2,3,4..... but if i use the x=A, it only have the final value of A which is the value when i = 10. so , how can i save the vaule in print(A)
I'm looking for a way for a function to take actions based on how long it has been executing. For example, my function would loop continuously until 5 seconds has elapsed, in which case it returns immediately. Any suggestions?
I two sets of k-dimensional vectors, where k is around 500 and the number of vectors is usually smaller. I want to compute the (arbitrarily defined) minimal distance between the two sets.
A naive approach would be this:
(loop for a in set1
for b in set2
minimizing (distance a b))
However, this requires O(n² * distance) computations. Is there a faster way of doing this?
Hello all ,
I have a string like "SAB_bARGS_D" . What I want is that the string gets divided into list of characters but whenever there is a _ sign the next character gets appended to the previous one.
So the answer to above should be ['S','A','B_b','A','R','G','S_D']
It can be done by using a for loop traversing through the list but is there an inbuilt function that I can use.....
Thanks a lot
Instead of making a macro for each letter, as in
\def\bA{\mathbf{A}}
...
\def\bZ{\mathbf{Z}}
Is there a way to loop over a character class (like capital letters) and generate macros for each? I'd also like to do the same for Greek letters (using bm instead of mathbf).
What is the easiest way to take an objects and convert any of its values from null to string.empty ?
I was thinking about a routine that I can pass in any object, but I am not sure how to loop through all the values.
What i want to do is set the background of a row based on some criteria, but the datagrid will be fairly large so i don't want to have to loop over all the rows again. The rows get created me doing something like "myDataGridView.DataSource = MyDataSource, so the only way i can think to edit rows is by using an event.
there is a row*s* added event, but that gives me a list of rows that i'd have to iterate over.
Thanks in advance for any help.
Question:
I want to loop over all open tabs in Internet Exporer (for all open IE windows) and save the URL in a text file. How can I do that ? I have windows 7 32 bit and IE 8.
Code for Firefox/Google chrome would also be welcome.
I run through a for loop, each time extracting certain elements of an array, say element1, element2, etc. How do I then pool all of the elements I've extracted together so that I have a list of them?
I have a largish array of string that I want to use as a lookup.
I a using in_array(), but I suspect its doing a simple loop through - does anyone know whether the in_array() algo uses a bsearch algo?
I want to grab all the inputs inside a form, in order to submit them.
The point of this is to use jquery's ajax to submit a dynamically sized form.
Surely there must be an array inside the dom somewhere which i can just do something like...
docment.forms['form'].elements
which only lists inputs for that form, meaning I can loop through them and grab their values to play around with?
how would i manually add two chars without using the strncopy function?
can i just say char1 + char2?
or would i have to write a for loop to get individual elements and add them like this:
addchar[0] = char1[0];
addchar[1] = char1[1];
etc
etc
addchar[n] = char2[0];
addchar[n+1] = char2[1];
etc
etc
A matrix is diagonally dominant (by rows) if its value at the diagonal is greater then the sum of all absolute value in that row. Same goes for columns, only the other way around.
Is there a function in matlab for chekcing this ? (I could write a simple loop, but I'm trying to quit those).
I have a respone returned as 'response'
I need to compare it with old HTML. If it is different it will just do some css.
The problem is it detects a different change everytime even when there is no difference and there is a continueous loop which makes my animation on css repeat itself.
Anyone help?
I need some way to do the following efficiently in C#:
Make program execution stop until certain value is changed.
Note: I do not want to make it with a while loop to avoid wasting cpu power..
Why this isn't allowed:
int a = 0;
int a = 0;
but this is:
for (int i = 0; i < 2; ++i)
{
int a = 0;
}
As far as I know code inside for loop will be executed twice whitout actually going out of its scope, so it should also be an error to define a twice.
Looking forward to your answers
Thanks.
Why is it that
class swi22
{
public static void main(String[] args)
{
int a=98;
switch(a)
{
default:{ System.out.println("default");continue;}
case 'b':{ System.out.println(a); continue;}
case 'a':{ System.out.println(a);}
}
System.out.println("Switch Completed");
}
}
gives error as: continue outside of loop
I would like to design a progress bar, without using an image (eg animated gif...).
Can this be done with just html css and jquery?
trying to be creative here :)
Update:
the progress percentage cannot be determined, so it has to be a loop
I have two videos, and I want to loop the first video until the user clicks the mouse, at which point I want to switch to playing the second video. Does anyone know what the best way to do this would be?
I've got a bunch of values that are all assigned the same variable due to running through a for loop several times, so for example:
d = 3.44434
d = 2.4444
d = 2.7777
How do I put them all into a vector?
Hi
How would I write a selector that would look through say a div of textboxes and find which ones have a value in the textbox(so length would be greater than zero).
Can I do this all in one selector or do I have to get all textboxes then loop through them?
Possible Duplicate:
Is there a performance difference between i++ and ++i in C++?
What is the pratical difference between these 2 statements on, for example, a while loop?