Counting number in a matrix using loop
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Hello, I haven't used MatLab for awhile. I am trying to make a loop function to count how many numbers are between 10 to 50 for a set of number (without using the FIND() or SUM() function. Here is my code so far:
x=[20 10 15 70 90 111 18 10 76 31 15 67 89 57 47];
count=0;
n=length(x);
for k=1:n
while k<n+1
if x(n)>10 && x(n)<50
count=count+1;
else
fprintf('No number is between 15 and 40')
end
end
end
count
I am not receiving the right 'count' number. I am also trying sum that number together afterward. Can someone help me with the code, please!
1 个评论
回答（1 个）
Image Analyst
2018-3-27
Get rid of the while statement and index with k, not n.
x=[20 10 15 70 90 111 18 10 76 31 15 67 89 57 47];
count=0;
n=length(x);
for k=1:n
if x(k)>10 && x(k)<50
fprintf('%d is between 15 and 40.\n', x(k))
count=count+1;
else
fprintf('%d is not between 15 and 40.\n', x(k))
end
end
fprintf('I found %d elements between 15 and 40.\n', count)
4 个评论
sky keeper
2021-4-24
Sir please tell me if I count 0,1,0,1 push botton switching how to count
Image Analyst
2021-4-24
@sky keeper, not sure what you mean. Explain more in a new question after you read the link below:
sky keeper
2021-4-24
I have a push button connect to matlab through arduino. The push swtich give value if push 0,if pull 1 . Now I want to write a function for it.how many time it is push.i want to count number.
Image Analyst
2021-4-24
See attached demo. Adapt as needed.
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2018-3-27
2021-4-24
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