How I can detection column indexes of string 'rk_accept_metaln' (n=1,2,3,4....)
조회 수: 1 (최근 30일)
이전 댓글 표시
I want to use the folloing code to automatic detection column indexes of 'rk_accept_metaln'(n=1,2,3,4,...n)
For example, run the following code, if the num=1, then the column index of rk_accept_metal1' is 9 (i.e. col_ind=9)
Then, the num >1, like num=2, we should get the column indexes of r1 and r2 (i.e col_ind=[9,11]) if running the code
%Determine the column index of variable names
match_var1 = str2double(regexp(var_nm.Properties.VariableNames, '(?=rk_accept_)+((?<=^metal)\d)$','once','match'));
ind_rmg = find(match_var1 <= num1);
But i cannot get anything if i use this code, i think the point is '(?=rk_accept_)+((?<=^metal)\d)$', but i have no idea how to fix it
Thanks in advance for help!
댓글 수: 2
Mathieu NOE
2021년 12월 9일
hello
it could be helpful if you share the input data as well (var_nm.Properties.VariableNames)
채택된 답변
Stephen23
2021년 12월 9일
C = {'X','Y','Z','X_size','Y_size','Z_size','volume','block_tonnage','rk_accept_grade1','rk_accept_metal1','rk_rejected_grade1','rk_rejected_metal1','rk_accept_grade2','rk_accept_metal2','rk_rejected_grade2','rk_rejected_metal2','rk_accept_tonnage','rk_rejected_tonnage','sg','volume_factor'};
N = str2double(regexp(C, '(?<=rk_accept_metal)\d+$','once','match'))
댓글 수: 0
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Characters and Strings에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!