Loop input variables into function to get the various output in table

4 次查看（过去 30 天）

显示更早的评论

IDN 2022-7-18

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1762690-loop-input-variables-into-function-to-get-the-various-output-in-table

评论： Voss 2022-7-19

采纳的回答： Voss

Hello!

I have a function for which i have some variables as input that create output as follows:

function(A,B,C,D,E,F,G) - So I input varibles A thru G and get the below output X thu Z

for i = 1:varout

switch i

case 1

varout{1} = X;

case 2

varout{2} = Y;

case 3

varout{3} = Z;

end

I have for example the following input variables I want to pass thru the function all at once for me to get a table with all the output variables given the input.

A B C D E F G X Y Z

1 2 1 2 6 7 1 =

3 1 1 8 7 4 10 =

1 5 1 2 6 3 8 =

Appreciate all the help in this matter! Thanks so much!

8 个评论
显示 6更早的评论隐藏 6更早的评论

Adam Danz 2022-7-18

That should be easy to implement. If those are your variable names, then that's exactly the code you would use to produce those outputs. But I must admit, I am still quite uncertain of the goal.

IDN 2022-7-18

So Adam, what I vectors/list of the A-G variables....but want to pass them to the function somehow/systematically instead of typing set or variables individually...maybe a loop or something else...that passes thru every row in the vector/list and on that same row in another table records the output variables.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Voss 2022-7-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1762690-loop-input-variables-into-function-to-get-the-various-output-in-table#answer_1010340

在 MATLAB Online 中打开

Something like this maybe?

% your initial table
input_table = array2table([ ...
    41    62  92  17   3    7   -2; ...
    41    61  92  18   4    7   -2; ...
    41.5 62  92   6    3    7   -2; ...
    ],'VariableNames',{'A' 'B' 'C' 'D' 'E' 'F' 'G'})
input_table = 3×7 table
     A      B     C     D     E    F    G 
    ____    __    __    __    _    _    __

      41    62    92    17    3    7    -2
      41    61    92    18    4    7    -2
    41.5    62    92     6    3    7    -2
% convert to a cell array
inputs = table2cell(input_table)
inputs = 3×7 cell array
    {[     41]}    {[62]}    {[92]}    {[17]}    {[3]}    {[7]}    {[-2]}
    {[     41]}    {[61]}    {[92]}    {[18]}    {[4]}    {[7]}    {[-2]}
    {[41.5000]}    {[62]}    {[92]}    {[ 6]}    {[3]}    {[7]}    {[-2]}
% pass each row of inputs to your function, and 
% collect the outputs in another cell array
N = size(input_table,1);
outputs = cell(N,3);
for ii = 1:N
    [outputs{ii,:}] = your_function(inputs{ii,:});
end
outputs
outputs = 3×3 cell array
    {[     220]}    {[     110]}    {[     330]}
    {[     221]}    {[110.5000]}    {[331.5000]}
    {[209.5000]}    {[104.7500]}    {[314.2500]}
% convert the outputs to a table
output_table = cell2table(outputs,'VariableNames',{'X' 'Y' 'Z'})
output_table = 3×3 table
      X        Y         Z   
    _____    ______    ______

      220       110       330
      221     110.5     331.5
    209.5    104.75    314.25
function [X,Y,Z] = your_function(A,B,C,D,E,F,G)
X = A+B+C+D+E+F+G;
Y = X / 2;
Z = X+Y;
end