storing The for loop data
显示 更早的评论
How can I stored the for loop data ...for each loop..Its overwriting the previous data .. I am storing in C..But it is taking only last loop by overwriting previous values any inputs how can I do this ...Thank you in Adance ...any improvement in code can someone suggest
clear all
close all
clc
A=xlsread('Compare_All_cases','B1:AB37');
B=[]
for i= 1:12
B=[B;A(i,:)]
end
for i=1:3:12
effi1=(B(i,:)-B((i+1),:))./(B(i,:))*100
effi2=(B((i+1),:)-B((i+2),:))./(B((i+1),:))*100
effi3=(B(i,:)-B((i+2),:))./(B(i,:))*100
C=vertcat(effi1,effi2,effi3);
end
采纳的回答
The below line
A=xlsread('Compare_All_cases','B1:AB37');
B=[]
for i= 1:12
B=[B;A(i,:)]
end
can be achieved by:
A=xlsread('Compare_All_cases','B1:AB37');
A = A' ;
B = A(:) ;
The rest of the lines:
for i=1:3:12
effi1=(B(i,:)-B((i+1),:))./(B(i,:))*100
effi2=(B((i+1),:)-B((i+2),:))./(B((i+1),:))*100
effi3=(B(i,:)-B((i+2),:))./(B(i,:))*100
C=vertcat(effi1,effi2,effi3);
end
can be used:
C = cell([],1) ;
count = 0;
for i=1:3:12
count = count+1 ;
effi1=(B(i,:)-B((i+1),:))./(B(i,:))*100
effi2=(B((i+1),:)-B((i+2),:))./(B((i+1),:))*100
effi3=(B(i,:)-B((i+2),:))./(B(i,:))*100
C{i}=vertcat(effi1,effi2,effi3);
end
You can convert the above cell into a amtrix. Read about Cell2mat.
4 个评论
Prasad Joshi
2022-2-9
KSSV
2022-2-9
Or if the size of C is same.
C = zeros([],3) ;
count = 0;
for i=1:3:12
count = count+1 ;
effi1=(B(i,:)-B((i+1),:))./(B(i,:))*100
effi2=(B((i+1),:)-B((i+2),:))./(B((i+1),:))*100
effi3=(B(i,:)-B((i+2),:))./(B(i,:))*100
C(i,:) = [effi1,effi2,effi3];
end
Prasad Joshi
2022-2-9
Prasad Joshi
2022-2-9
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Loops and Conditional Statements 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 
