i am having a matrix and want to separate them in the depending on its value
A=[1,2,3,4,5,6,7,8,9,10]
expected result are
idx1=[1,0,0,0,0,0,0,0,0,0] % for 1
...
idx10=[0,0,0,0,0,0,0,0,0,1] % for 10

 Akzeptierte Antwort

Andrei Bobrov
Andrei Bobrov am 25 Okt. 2018

1 Stimme

A = 1:10;
idx = A(:) == A(:)'

2 Kommentare

what should i change to have a 5 rows with a step of 2
what should i change to have a 5 rows with a step of 2
?
A = 1:2:10;
idx = A(:) == A(:)';

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Weitere Antworten (1)

madhan ravi
madhan ravi am 24 Okt. 2018
Bearbeitet: madhan ravi am 24 Okt. 2018

1 Stimme

A=[1,2,3,4,5,6,7,8,9,10]
RESULT = zeros(1,numel(A));
RESULT1= RESULT;
for i = 1:numel(A)
idx(i)=A(i)==1;
idx1(i)=A(i)==10;
end
RESULT(idx) = A(idx)
RESULT1(idx1) = A(idx1)

10 Kommentare

madhan ravi
madhan ravi am 24 Okt. 2018
No need to use logical indexing , see the above illustration
how can form a loop for this?
madhan ravi
madhan ravi am 24 Okt. 2018
See the edited answer ,problem solved!
A=[1,2,3,4,5,6,7,8,9,10]
idy=zeros(1,length(A));
for i=1:1:10
idx22=find(A >=(i) & A<(i+1));
idy(i,idx22)=1;
end
madhan ravi
madhan ravi am 24 Okt. 2018
Bearbeitet: madhan ravi am 24 Okt. 2018
hows this related to the question??? what did you do in the above comment?
Shubham Mohan Tatpalliwar
Shubham Mohan Tatpalliwar am 25 Okt. 2018
Bearbeitet: Shubham Mohan Tatpalliwar am 25 Okt. 2018
i have created a array
in which at evry row the numbers are indexed in a step of 1
from this array i can use evry row as a vector
and important is that, its done in a loop so i do not have to repeat the operation 100 times
try the updated code to get a clear idea
madhan ravi
madhan ravi am 25 Okt. 2018
I know but you don’t have Use a loop
A=[1,2,3,4,5,6,7,8,9,10]
idy=zeros(1,length(A));
for i=1:1:10
idx22=find(A >=(i) & A<(i+1));
idy(i,idx22)=1;
end
madhan ravi
madhan ravi am 25 Okt. 2018
what do you mean by the above code?
madhan ravi
madhan ravi am 25 Okt. 2018
What should be the result after the loop?

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