Some questions about array methods

Questions
1

I have two issues with generating pattern with array.

(
~funcB = { arg len = 16;
	var n = Array.fill(len, {arg i ; i});
	var m = Array.fill(rrand(4, len-1), {n.choose}).sort;
	var randNum = rrand(0, len);

	m.postln;

};
)

~funcB.();
  1. I would like to make an array with only one number in an array. is there any methods to do that?
(
~funcC = { arg len = 16;
	var n = Array.fill(len, {arg i ; if ([true,false].choose, {i}, {0})}).sort;
	n.postln;

};
)
  1. which method will be works removing specific item in array? I would like to remove in all “0” in this array
2

for #2 use the method .reject

[\a, \b, \c].reject{|i| i == \b} // [\a, \c]
1 Like
3

You create an array of one item using exactly the same methods you would use to create an array of multiple items, except with only one item.

[1, 2, 3]  // ok

[3]  // ok

Array.fill(3, { 10.rand })  // ok

Array.fill(1, { 10.rand })  // ok

// etc...

hjh

4

I miss typed the question. number 0 to 16, I want to get a only one number at once for a set of [0…16] I would like to array like [2, 3, 6, 12] or [2, 4, 5, 11, 12,15] not [2, 2, 3, 4, 5, 5, 5]

and thank you so much you solve so many my weird question :slight_smile:

5

Perhaps see:

Set.fill(5) { 10.rand }

If the collection of interest is small and you want all answers to be of the same size perhaps:

"of-interest".scramble.keep(5)
6

Ah OK… sorry for misunderstanding.

.scramble.keep(num) is nice – I’ve used that myself.

.take is another nice method.

// note: 0..16 contains 17 numbers;
// I'll assume that's not what you meant
a = (0..15);
Array.fill(5, { a.take(a.choose) });
-> [ 4, 10, 1, 15, 7 ]

// note: 0..16 contains 17 numbers;
// I'll assume that's not what you meant
a = (0..15);
Array.fill(5, { a.take(a.choose) });
-> [ 4, 10, 1, 15, 7 ]

// or
b = Bag.with(*(0..15));
Array.fill(5, { b.take });  // no need to .choose

hjh

7

And If I get an array [2, 3, 5, 6, 13], is there any method to check specific values in the array? like python method?
for example, I would like to condition statment, like If or switch after generating the array!

8

Like which python method?

Because the desired operation isn’t specified, I’m kinda guessing here, but SuperCollider has .includes, for starters.

hjh