How to know the quatity of the number in an array

my data is:

A=[1 1 2 1 1 1 2 1 1 1 3 3 3 1 1 3 4 1 2 1 2 2 1 1 1 1 3 2 2 3 1 7 1 1 1 1 3 1 1 5 2 1 1 1 1 1 1 1 1 1 1 1 4 1 1 2 2 1 2 4 3 4 1 1 2 2 2 1 1 1 1 2 2 3 1 2 2 1 2 2 3 3 3 2 1 2 1 3 3 4 2 1 1 4 1 1 2 1 1 3 1 2 2 1 1 1 1 1 3 3 2 1 3 2 1 2 1 1 2 1 1 2 1 2 1 1 1 2 1 1 1 2 2 1 2 1 1 1 1 1 1 1 1 1 3 2 2 1 1 2 1 1 1 1 1 1 1 2 3 3 2 2 1 1 2 1 1 4 1 1 2 3 1 3 1 1 1 2 2 3 1 2 1 1 3 1 1 2 2 1 ]

I want to know how many times or the quantity of number 1 in my array.

thank you.

[uncung fgv]

am I missing this question?

I dont know exactly in english.

I want to know how many times the 1, or 2, or 3 ... is mentioned in that array.

Answer 1

[Azzi Abdelmalek]

out=sum(A(A==1))

[uncung fgv]

Thankyou very much so simple.

[Sean de Wolski]

You can skip the extraction:

sum(a==1)

Or:

nnz(a==1)

[uncung fgv]

but why is it wrong when I do it for number 2?

[uncung fgv]

it should be not sum?

[Azzi Abdelmalek]

Use the solution of Sean de Wolski

sum(a==2)

[uncung fgv]

actually I want:

how many times alphabet/number/character 2 is mentioned in that array.

not the sum/amount.

[uncung fgv]

yes, thank you. sean de wolski. your answer is hidden.