# alternate way , without ismember function

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Life is Wonderful le 8 Oct 2020
Commenté : Star Strider le 8 Oct 2020
Hi
I am having problems in using the ismember function, so I want to replace ismember and I need help in replacing the function.
Below is example code
INData = [
0.0120849609375
0.014190673828125
0.015838623046875
0.01214599609375
0.012481689453125
0.0123291015625
0.621002197265625
0.017181396484375
0.015167236328125
0.015350341796875
0.014556884765625
0.01739501953125
0.621002197265625
0.023162841796875
0.017578125
0.01361083984375
0.01239013671875
0.012115478515625
0.012451171875
0.01702880859375
0.01214599609375
0.012725830078125
0.0125732421875
0.012603759765625
0.012359619140625
0.014190673828125
0.013214111328125
0.013427734375
0.01531982421875
0.621002197265625
0.01239013671875
0.013092041015625
0.017791748046875
0.015960693359375
];
dMark = [7 13 30];
s_data = ismember(1:size(INData(:,1),1),dMark);
s_data =
1×34 logical array
0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0
I need help in replacing isemember function.
Thank you
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### Réponse acceptée

Star Strider le 8 Oct 2020
The ismember function is doing exactly what you told it to do! What’s the problem?
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Life is Wonderful le 8 Oct 2020
Thanks a lot for all the efforts and help. I am greatful for your explantion as well.
Star Strider le 8 Oct 2020
As always, my pleasure!
This was an interesting problem!

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### Plus de réponses (1)

Ameer Hamza le 8 Oct 2020
An alternative approach
dMark = [7 13 30];
s_data = false(1, size(INData, 1));
s_data(dMark) = 1;
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Ameer Hamza le 8 Oct 2020
Don't check the output of s_data(dMark). Just run
s_data
after running my code.
Life is Wonderful le 8 Oct 2020
Your interpretation is right s_data give right output!

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