Assign number to certain value in cell

Question

Nickel Blankevoort 2020-10-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/624303-assign-number-to-certain-value-in-cell

回答： Akira Agata 2021-11-25

Two cell arrays

First cell array (4x1cell):

A = As C H N

FIrst of all I would like to assign the value 1 to the first cell As, 2 to the second cell C, 3 to the tird cell H, 4 to the fourth cell N.

Second cell array (44x1cell):

B = As As N N H H H H C C C C C etc.

now I would like to create a vector X with the assigned values to the elements to the elements in B like:

X=[1 1 4 4 3 3 3 3 2 2 2 2 2 etc.]

Kind regards Nickel

2 个评论
显示无隐藏无

Walter Roberson 2020-10-24

Is it required that in the first step that variables named As and N and so on be created?

Nickel Blankevoort 2020-10-24

If I understand your question correctly the answer is no.

the elements As,N,H and C are already in the first cell array and don't need to be created.

but the values 1,2,3 and 4 do need to be assinged to those elements.

the same goes for the second cell array, the elements are already in there.

finally a new vector needs te be created with the assigned number to the elements in the first cell array,

corresponding to the elements in the second cell array.

the elements in both cell arrays change all the time so ideally the code adapts to that

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Ahmed raafat 2020-10-23

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/624303-assign-number-to-certain-value-in-cell#answer_522963

B{23,1}=[1 1 4 4 3 3 3 3 2 2 2 2 2 etc.]

like that???

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Nickel Blankevoort 2020-10-24

Hi Ahmed,

I am not too sure where that {23,1} comes from but the vector after the equal sign is correct

请先登录，再进行评论。

Answer 2

Akira Agata 2021-11-25

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/624303-assign-number-to-certain-value-in-cell#answer_840104

在 MATLAB Online 中打开

How about using ismember function? Like:

% Sample cell arrays
A = {'As', 'C', 'H', 'N'};
B = {'As', 'As', 'N', 'N', 'H', 'H', 'H', 'H', 'C'};
% Create the array X
[~, X] = ismember(B, A);
% Show the result
disp(X)
     1     1     4     4     3     3     3     3     2

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。