How to get numbers from char array?
显示 更早的评论
I have an array of characters that are produced from a fitSVMposterior
'@(S)sigmoid(S,-1.588276e+00,-2.598747e-01)'
I need to access the numbers in this array but don't know how.
Might anyone know how to do so?
Thanks
采纳的回答
Assuming your string is named, str,
str = '@(S)sigmoid(S,-1.588276e+00,-2.598747e-01)';
numstr = regexp(str,'(-)?\d+(\.\d+)?(e(-|+)\d+)?','match')
% numstr =
% 1×2 cell array
% {'-1.588276e+00'} {'-2.598747e-01'}
to convert to double,
num = str2double(numstr)
% num =
% -1.5883 -0.25987
更多回答（1 个）
Shae Morgan
2020-8-10
编辑：Shae Morgan
2020-8-10
str2double(char_array)
类别
在 帮助中心 和 File Exchange 中查找有关 Characters and Strings 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
