array

Generated from the engine catalog by tools/gen-docs.mjs; do not edit.

array.add

array.add(a, b) -> array<any>

Element-wise with an array of the same size or a number.

array.argmax

array.argmax(a) -> num

Statistic over the elements (na elements ignored).

array.argmin

array.argmin(a) -> num

Statistic over the elements (na elements ignored).

array.copy

array.copy(a) -> array<any>

Copy of the array.

array.correlation

array.correlation(a, b) -> num

Pearson correlation of two arrays.

array.covariance

array.covariance(a, b) -> num

Population covariance of two arrays.

array.create

array.create(size, fill = na) -> array<any>

Fixed-size numeric array (never reallocates).

array.cumsum

array.cumsum(a) -> array<any>

Transformed copy.

array.diff

array.diff(a) -> array<any>

Transformed copy.

array.div

array.div(a, b) -> array<any>

Element-wise with an array of the same size or a number.

array.dot

array.dot(a, b) -> num

Dot product.

array.fill

array.fill(a, v)

Sets every element.

array.get

array.get(a, i) -> num

Element i (0 = oldest after roll); na when out of range.

array.linreg

array.linreg(a) -> (slope, intercept, r_squared)

Least-squares line over x = 0..n-1.

Returns 3 values: slope, intercept, r_squared.

array.max

array.max(a) -> num

Statistic over the elements (na elements ignored).

array.mean

array.mean(a) -> num

Statistic over the elements (na elements ignored).

array.min

array.min(a) -> num

Statistic over the elements (na elements ignored).

array.mul

array.mul(a, b) -> array<any>

Element-wise with an array of the same size or a number.

array.normalize

array.normalize(a) -> array<any>

Transformed copy.

array.of

array.of(v0) -> array<any>

Array of the given numbers.

array.percentile

array.percentile(a, pct = 50) -> num

Percentile with linear interpolation (50 = median).

array.rank

array.rank(a, x) -> num

Percent of elements <= x.

array.reverse

array.reverse(a)

Reverses in place.

array.roll

array.roll(a, x) -> num

Rolling window push in O(1): appends x, drops and returns the oldest value.

array.set

array.set(a, i, v)

Sets element i.

array.size

array.size(a) -> int

Number of elements.

array.slice

array.slice(a, from, to = na) -> array<any>

Read-only view of [from, to).

array.sort

array.sort(a, descending = 0)

Sorts in place.

array.stdev

array.stdev(a) -> num

Statistic over the elements (na elements ignored).

array.sub

array.sub(a, b) -> array<any>

Element-wise with an array of the same size or a number.

array.sum

array.sum(a) -> num

Statistic over the elements (na elements ignored).

array.variance

array.variance(a) -> num

Statistic over the elements (na elements ignored).

array.zscore

array.zscore(a) -> array<any>

Transformed copy.