Table column of strings to a matrix.
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Daniel
am 14 Nov. 2022
Beantwortet: Steven Lord
am 14 Nov. 2022
Hello,
i am beginer and i am struggling with matlab tables. I have a table column that contains strings with vectors inside
A=["[0 0 0 0 0 0 0 0]";"[0 0 0 0 0 0 0 0]";"[0 0 0 0 0 0 0 0]";"[1 1 1 1 1 1 1 1]"]
I would like to have a matrix with the numbers inside, like
B=[0 0 0 0 0 0 0 0;0 0 0 0 0 0 0 0;0 0 0 0 0 0 0 0;1 1 1 1 1 1 1 1]
How can i do this without using loops? Thank you in advance.
2 Kommentare
Stephen23
am 14 Nov. 2022
Bearbeitet: Stephen23
am 14 Nov. 2022
"I have a table column that contains strings with vectors inside "
This looks like file importing is suboptimal. You can probably change the file importing to import numeric as numeric, which most likely would be simpler and more efficient than messing around with text like this.
Jan
am 14 Nov. 2022
"I have a table column that contains strings with vectors inside" - no, there is no table. This is a column vector of strings. If the strings are interpreted as Matlab, they would be vectors, but they are not "inside".
Akzeptierte Antwort
Stephen23
am 14 Nov. 2022
A = ["[0 0 0 0 0 0 0 0]";"[0 0 0 0 0 0 0 0]";"[0 0 0 0 0 0 0 0]";"[1 1 1 1 1 1 1 1]"]
M = cell2mat(cellfun(@str2num,A,'uni',0))
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Weitere Antworten (3)
RAGHUNATHRAJU DASHARATHA
am 14 Nov. 2022
As per my understanding you want to get a matrix from the string array
I will demonstarte it using the example below
A=["[0 0 0 0 0 0 0 0]";"[0 0 0 0 0 0 0 0]";"[0 0 0 0 0 0 0 0]";"[1 1 1 1 1 1 1 1]"]
B =extract(A,digitsPattern)
B=str2double(B)
for more information go through the link
Steven Lord
am 14 Nov. 2022
A=["[0 0 0 0 0 0 0 0]";"[0 0 0 0 0 0 0 0]";"[0 0 0 0 0 0 0 0]";"[1 1 1 1 1 1 1 1]"]
A2 = erase(A, ["[", "]"])
double(split(A2, ' '))
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Jan
am 14 Nov. 2022
Bearbeitet: Jan
am 14 Nov. 2022
A = ["[0 0 0 0 0 0 0 0]";"[0 0 0 0 0 0 0 0]";"[0 0 0 0 0 0 0 0]";"[1 1 1 1 1 1 1 1]"];
AC = char(A);
AC(ismember(AC, '[] ')) = [];
AC = reshape(AC, numel(A), []);
B = AC - '0'
Alternative:
AC = char(extract(A, digitsPattern));
B = squeeze(AC) - '0'
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