Convert string array to numetric.

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dmfwlansejr
dmfwlansejr 2023-1-18
回答： Stephen23 2023-1-18
Hi- Everybody
I want to convert as below.
>> whos data
Name Size Bytes Class Attributes
Tdat 6848125x1 369798846 string
>> data(6:10,1)
ans =
5×1 string array
"01"
"01"
"10"
"10"
"01"
Convert to below..
I want to make...
>> data(:,1)
0
0
1
1
0
:
:
>> data(:,2)
1
1
0
0
1
:
:
Thanks!

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回答（3 个）

Paul
Paul 2023-1-18
Ran in:
If the data only contains 0's and 1's ..
data = [
"01"
"01"
"10"
"10"
"01"]
data = 5×1 string array
"01" "01" "10" "10" "01"
data = double([extractBefore(data,2) extractAfter(data,1)])
data = 5×2
0 1 0 1 1 0 1 0 0 1
Stephen23
Stephen23 2023-1-18
Ran in:
data = ["01";"01";"10";"10";"01"]
data = 5×1 string array
"01" "01" "10" "10" "01"
M = char(data)-'0'
M = 5×2
0 1 0 1 1 0 1 0 0 1
Star Strider
Star Strider 2023-1-18
Ran in:
Try something like this —
sv = ["01"
"01"
"10"
"10"
"01"];
cv = char(sv);
for k = 1:size(cv,1)
data(k,1) = str2double(cv(k,1));
data(k,2) = str2double(cv(k,2));
end
data
data = 5×2
0 1 0 1 1 0 1 0 0 1
.

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