Create table in a for loop with text

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Doron Joffe
Doron Joffe el 21 de Nov. de 2021
Comentada: Doron Joffe el 24 de Nov. de 2021
I am creating a table in a for loop in Matlab. The table should contain the answer for each iteration of the loop.
On each iteration the, the answer that is produced is the name of a soccer player. I want to create a table that stores the list of the names of soccer players. For example
Player
Ronaldo
Messi
When I write the below code, it comes out as NaN.
  1 comentario
Image Analyst
Image Analyst el 21 de Nov. de 2021
After you read this:
attach one of your CSV files and your m-file. We cannot run an image and can't run an m-file with no data.
And I think B should be
B = cell(length(files), 1);
before the loop.

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Respuestas (2)

Yongjian Feng
Yongjian Feng el 21 de Nov. de 2021
Editada: Yongjian Feng el 21 de Nov. de 2021
Try this:
files = dir('*.csv');
B = {};
for i = 1:length(files)
csv = readtable(files(i).name, 'Range', 'A1:I8'); % Double check please to make sure
Player = csv(1,2);
Player = table2array(Player) % no ; here, print it out for debug. put it back later
%Player=str2double(Player); % WHY? A player's name can't be converted
%to double
B{end+1} = Player;
end
T = table(B', 'VariableName', {'Player'})
  2 comentarios
Peter Perkins
Peter Perkins el 23 de Nov. de 2021
Editada: Peter Perkins el 23 de Nov. de 2021
This
Player = csv(1,2);
Player = table2array(Player)
can't be the best way to do this. More than likely
Player = csv{1,2};
or (much) better yet:
Player = csv.Player(1) % or whatever column heading is in the file
Doron Joffe
Doron Joffe el 24 de Nov. de 2021
Thank you very much. This worked perfectly.

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Sean de Wolski
Sean de Wolski el 23 de Nov. de 2021
Confused as to why you're using excel ranges with csv input. Either way, this should be doable in one shot with readall(datastore).
ds = datastore("*.csv")
ds % MODIFY the settings to only read the (1,2) element. Specify header rows, text type as string, etc.
T = readall(ds)

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