Command for picking two regular elements from a Vector
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I have a vector of size 30X 1
I want to pick up 1, 2, 4 , 5, 7, 8, 10, 11, ............28, 29.
please suggest me how can i proceed?
回答（2 个）
Use randperm to create shuffled indices then use that index vector to reorder your vector of data. I'll use a deck of cards:
values = ["Ace", 2:10, "Jack", "Queen", "King"];
suits = ["club", "diamond", "heart", "spade"];
cards = combinations(values, suits);
order = randperm(height(cards)); % Random ordering of 1:52
shuffledDeck = cards(order, :); % Use order as indices into rows of cards table
Let's look at the first few cards of the two decks. First the one in order:
head(cards)
Next the shuffled deck.
head(shuffledDeck)
While I used table arrays here (cards, shuffledDeck), the same technique (i.e. shuffledDeck = cards(order, :); ) applies to regular arrays as well.
Satwik Samayamantry
2023-7-7
Hi Patel, as per my understanding you want to remove all multiples of 3 from your input vector. The following function should get your job done.
function outputVector = removeMultiplesOfThree(inputVector)
% Initialize an empty output vector
outputVector = [];
% Iterate through each element in the input vector
for i = 1:length(inputVector)
% Check if the current element is not a multiple of 3
if mod(inputVector(i), 3) ~= 0
% Append the element to the output vector
outputVector = [outputVector; inputVector(i)];
end
end
end
Hope this helps you!!
1 个评论
yourVector=randi(100,1,30) %Example
N=numel(yourVector);
subset=setdiff(1:N,3:3:N);
yourVector=yourVector(subset) %Result
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2023-7-7
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