convert double array in array string in table

Question

aldo 2023-10-21

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2036781-convert-double-array-in-array-string-in-table

回答： Samar 2025-1-23

it's possible to convert double array in array string in table ?

T.Strategy=[Sis.Sistema].';
data=[Sis.data];%[Eq.data];                        % N x size(Sis,2) array datetimes
T.DateF=data(1,:)';                    % start date is first each 
T.DateL=data(end,:)';                  % last date is end each
[r1]=arrayfun(@(s)find(s.dailyprof,1),Sis); %trovo il primo trade 
[r2]=arrayfun(@(s)find(s.dailyprof,1,'last'),Sis); %trovo ultimo trade
T.TradeF=arrayfun(@(s,i)s.data(i),Sis,r1)';
T.TradeL=arrayfun(@(s,i)s.data(i),Sis,r2)';
T.Strategy is array string.
T.DateF is array datetime
T.DateL is array datetime
T.TradeF is double array
T.TradeL is double array

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Stephen23 2023-10-21

在 MATLAB Online 中打开

"it's possible to convert double array in array string in table ?"

Of course:

T = array2table(rand(5,2))
T = 5×2 table
      Var1        Var2  
    ________    ________

     0.51938     0.79195
    0.016597    0.088964
     0.79159     0.34445
     0.24275     0.62235
      0.9195     0.90204
T = convertvars(T,'Var1','string')
T = 5×2 table
       Var1         Var2  
    __________    ________

    "0.51938"      0.79195
    "0.016597"    0.088964
    "0.79159"      0.34445
    "0.24275"      0.62235
    "0.9195"       0.90204

aldo 2023-10-22

thanks

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Answer 1

Samar 2025-1-23

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2036781-convert-double-array-in-array-string-in-table#answer_1558017

As @Stephen23 rightly mentioned we can use the functions “array2table” and “convertvars” to convert double array and string array to a table. The links to the Documentation (assuming MATLAB R2023b release is being used) explaining the above functions is given below: