hop of those help? I am searching for a macro, constant or attribute, whatever it is, replaces "(x downto y)". To explain in detail for example complex numbers, , A subtype can be used to declare an integer range like: code :
 **pseudo** re = 2*WIDTH1 downto WIDTH; im = WIDTH1 downto 0; **pseudo**
subtype re is natural range 2*WIDTH1 downto WIDTH;
subtype im is natural range WIDTH1 downto 0;
x <= num(re);
y <= num(im);
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Treating a vector as a function on its indices/applying this function to another vector (of indices)
By : Ankur Mishra
Date : March 29 2020, 07:55 AM
With these it helps Let y=[4;6;2;9;5;1] be a column vector and let i=[4,2,1] be a vector of indices. I would like to somehow "apply" i to y and obtain [9,6,4]. Or at least [4;2;0;9;0;0]. , Simple: code :
y(i)
out = zeros(size(y));
out(i) = y(i);

How to pick indices that are not in my indices vector MATLAB
By : Juerg Amrein
Date : March 29 2020, 07:55 AM
around this issue Consider A an m by n matrix. I want to split A column wise by randomly picking NumOfRandomColumn columns. I have used this code to generate a vector of random indexes and extract the firs section: , This should work: code :
notselected = 1:MatrixColumnNumber;
notselected(indexes) = [];
secondSection = A(:,notselected);

Remove rows from data frame using row indices where row indices might be zero length vector
By : Pedro Vasquez
Date : March 29 2020, 07:55 AM
it fixes the issue I want to drop some rows from some dataframe using numeric indices of the rows. But sometimes the indices vector that I am going to drop becomes zero length vector. In this case, I expect that nothing should be dropped from the original data frame. But instead of nothing everything is dropped. , For this reason, it is better to use %in% and negate ! it code :
df[!seq_len(nrow(df)) %in% drop, ]
df %>%
filter(!row_number() %in% drop)

How to replace some indices of a vector with the same indices of another vector in R?
By : VonCrisp
Date : March 29 2020, 07:55 AM
should help you out I have two vectors (in R), each with the same length. I want to replace all negative values in vector A with the corresponding indices in vector B. For example, if indices 5, 7, and 9 of vector A are negative values, I want to replace indices 5, 7 and 9 of vector A with indices 5, 7, and 9 in vector B. , Here is one quick way:

Can I access 2 indices of an array at the same time VHDL
By : Arden2600
Date : March 29 2020, 07:55 AM
This might help you Yes that is perfectly fine. In you example, it's "just wires" so it is as efficient as any other (correct) syntax.

