arielthenon / range

range

This module offers functionality similar to Python.

There are 4 functions that create iterators with lazy evaluation:

• int_iter: similar to Python's range() for integer numbers
• float_iter: similar to Numpy's arange for floats
• lin_iter: similar to Numpy's linspace
• log_iter: similar to Numpy's logspace

The main defference with the Numpy functions is that the functions in this module return iterators rather than arrays, but can be used to create arrays.

All the iterators have a len attribute.

Exemples

int_iter

for i in int_iter(stop:5) {
	println(i)
}

0
1
2
3
4

---

for i in int_iter(start:3, stop:23, step:4) {
	println(i)
}

3
7
11
15
19

---

for i in int_iter(start:5, stop:-10, step:-3) {
	println(i)
}

5
2
-1
-4
-7

---

float_iter

for i in float_iter(start:1, stop:3, step:0.5) {
	println(i)
}

1.
1.5
2.
2.5

---

for i in float_iter(stop:-1, step: -0.25) {
	println(i)
}

0
-0.25
-0.5
-0.75

---

lin_iter

for i in lin_iter(start: 0.5, stop: 1.25, len:5) {
	println(i)
}

0.5
0.6875
0.875
1.0625
1.25

---

for i in lin_iter(start: 0.5, stop: 1.25, len:5, endpoint: false) {
	println(i)
}

0.5
0.65
0.8
0.95
1.1

---

log_iter

for i in log_iter(start: 0, stop: 3, len:5){
	println(i)
}

1.
5.623413251903491
31.622776601683796
177.8279410038923
1000

---

for i in log_iter(start: 0, stop: 3, len:5, base:2){
	println(i)
}

1.
1.681792830507429
2.82842712474619
4.756828460010884
8.

.len

r := int_iter(stop:25, step:4)
println('len: $r.len')

len: 7