If statement for identifying row/column vectors/matrix/scalars

38 次查看（过去 30 天）
Joseph DeMaria
Joseph DeMaria 2020-11-3
评论： Joseph DeMaria 2020-11-3
The question I am trying to solve, is how to create a function that recognizes the input given as either a colum vector, row vector, matrix, or scalar, depending on which category the input falls under it will execute simple arithmetic, that I can do. I have to create a function, myvec(x) that
the simple arithmetic I can execute, however, Im not sure how to type the if statements for the conditions the question prompts, for example, for the first condition how would I type
function y=myvec(x)
if y=rowvec? [1:n]? [1,n]?
or what is the correct way to do this, thank you

请先登录，再回答此问题。

回答（1 个）

Sudhakar Shinde
Sudhakar Shinde 2020-11-3
编辑：Sudhakar Shinde 2020-11-3
'isrow' function returns true if input is row vector.
isrow(in)
'iscolumn' function returns true if input is column vector.
iscolumn(in)
'ismatrix' function returns true if input is matrix.
ismatrix(in)
'isscalar' function returns true if input is scalar.
isscalar(in)
  2 个评论
Sudhakar Shinde
Sudhakar Shinde 2020-11-3
example below
function y=myvec(x)
if isrow(x) %Check if row vector
ReveresRow = sort(x,'descend'); %Reverse elements
y = ReveresRow.^2; %Square
end
end
you can add else if conditions for column vector, matrix or scalar
Joseph DeMaria
Joseph DeMaria 2020-11-3
Awesome this is helping so much! Appreciate your guys help so much, so far for my functions code I have
function y=myvec(x)
if isrow(x)
flip(x)
y=x.^2
if iscolumn(x)
y=vec-.5
if ismatrix(x)
y=(x*(x')).^2
if isscalar(x)
y=x
end
end
end
end
end
is this right for such conditions the question prompts?

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by