Add lines to a struct

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Bruce Victor
Bruce Victor 2021-12-27
评论： Stephen23 2021-12-27
I have a struct where one of the columns is the PatientID that appears like this 'P00000001' and I want to add more patients with a diferent PacientID but with the same structer ('P00000001' - a string with P and 8 numbers) how do I do?
  2 个评论
Matt J
Matt J 2021-12-27
编辑：Matt J 2021-12-27
structs do not have "columns". Are you sure you don't mean a table?
Stephen23
Stephen23 2021-12-27
Ran in:
"structs do not have "columns""
This structure has three columns:
S = struct('A',{1,2,3;4,5,6})
S = 2×3 struct array with fields:
A
size(S,2)
ans = 3

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回答（1 个）

Adam Danz
Adam Danz 2021-12-27
编辑：Adam Danz 2021-12-27
Ran in:
s = struct();
s.(sprintf('P%08.0f',1)) = 'Baetriz';
s.(sprintf('P%08.0f',2)) = 'Adam';
s.(sprintf('P%08.0f',3)) = 'Matlab'
s = struct with fields:
P00000001: 'Baetriz' P00000002: 'Adam' P00000003: 'Matlab'
Or if you're refering to tables,
T = table();
T.(sprintf('P%08.0f',1)) = 'Baetriz';
T.(sprintf('P%08.0f',2)) = 'Adam';
T.(sprintf('P%08.0f',3)) = 'Matlab'
T = 1×3 table
P00000001 P00000002 P00000003 _________ _________ _________ Baetriz Adam Matlab
  2 个评论
Steven Lord
Steven Lord 2021-12-27
Ran in:
If you're using a table you probably want each patient to be a row of data, with the IDs as the RowNames.
t = table("Baetriz", 'VariableNames', "Name", 'RowNames', "P00000001")
t = table
Name _________ P00000001 "Baetriz"
t{sprintf("P%08d", 2), 'Name'} = "Steve"
t = 2×1 table
Name _________ P00000001 "Baetriz" P00000002 "Steve"
n = t{'P00000001', 'Name'}
n = "Baetriz"
Adam Danz
Adam Danz 2021-12-27
Ran in:
Or if you want to add row names all at once,
names = ["Baetriz";"Steve";"Adam"]
names = 3×1 string array
"Baetriz" "Steve" "Adam"
rownames = compose('P%08d',1:numel(names))
rownames = 1×3 cell array
{'P00000001'} {'P00000002'} {'P00000003'}
T = table(names, 'RowNames', rownames)
T = 3×1 table
names _________ P00000001 "Baetriz" P00000002 "Steve" P00000003 "Adam"

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