Extract first x characters in specific table column and place them in new column.

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Simon Schmidt
Simon Schmidt 2021-4-29
评论： Simon Schmidt 2021-4-30
Hello,
i want to extract the first x characters of a specific column for every row in the table and create a new column with the extracts (see image).
Unfortunaly Im not able to do this...
Help is much appreciated!
  1 个评论
Chunru
Chunru 2021-4-30
Using table and string functions:
data = table(["aaaaaa"; "bbbbbbb"; "ccccccc"], [2.99; 2.99; 3.99]);
data.Properties.VariableNames=["Name", "Value"];
newName = extractBetween(data.Name, 1, 3);
data = addvars(data, newName);

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Chunru
Chunru 2021-4-30
data = table(["aaaaaa"; "bbbbbbb"; "ccccccc"], [2.99; 2.99; 3.99]);
data.Properties.VariableNames=["Name", "Value"];
newName = extractBetween(data.Name, 1, 3);
data = addvars(data, newName);
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Chunru
Chunru 2021-4-30
Something like this:
FirstWord = data.name; % copy the original name
for i = 1:length(FirstWord)
% Split each origninal name and get the first word
words = split(FirstWord(i));
FirstWord(i) = words(1);
end
data = addvars(data, FirstWord);

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