Error with ismember! help me

Question

fede 2016-4-10

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/278235-error-with-ismember-help-me

评论： fede 2016-4-11

siz=size(couple,1);
hlife=zeros(siz,1);
adf=zeros(siz,1);
correlation=zeros(siz,1);
sharpe_res=zeros(siz,1);
mcoint=zeros(siz,1);
performance_k=zeros(siz,1);
sharpe_k=zeros(siz,1);
performance_res=zeros(siz,1);
cl=num2cell(prices);
ff=[nomes;cl];
%%start*
for ii=1:size(couple,1);
  looking_up=couple(ii,:);
  [tf, coldix]=ismember(looking_up,f(ii,:));
  prices=ff(:,coldix(tf));
  prices=prices(2:end,:);
  prices=cell2mat(prices);
  x=prices(:,2);
  y=prices(:,1);
  x=flipud(x);
  y=flipud(y);
  step1
  performance_res(ii,1)=paperoni_o_pezzenti;
  hlife(ii,1)=halflife;
  adf(ii,1)=results.adf;
  correlation(ii,1)=ccor;
  sharpe_res(ii,1)=sharpe;
  sharpe_k(ii,1)=ksharpe;
  performance_k(ii,1)=paperoni_o_pezzentik;
  mcoint(ii,1)=m_coint;
end

Matlab give me the following error:

Input A of class cell and input B of class cell must be cell arrays of strings, unless one is a string.

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fede 2016-4-11

Hi f is a cell array, in where in the first row ther's string elements, and in the other row number.

fede 2016-4-11

在 MATLAB Online 中打开

couples is a matrix nx2 in which for each row ther's two strings, for example

n_1 N_2
n_3 n_4

and so on

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Answer 1

Image Analyst 2016-4-10

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/278235-error-with-ismember-help-me#answer_217297

Like Geoff and the error message says, it's probably got something else in the cells than only strings. Please read the FAQ first, and then fix your code: http://matlab.wikia.com/wiki/FAQ#What_is_a_cell_array.3F

Also, I don't know what's going on in this code, despite an abundance of comments, but I bet a table would be a better and easier choice than a cell array.