vector-operations

Function summary
diff	s &key (pad nil)
mean	s
pad-array	array &key (before 0) (after 0) (pad-value 0)
save-array	a filename
scalar-product	a b
swap-array	in-array
v*	&rest args
v+	&rest args
v-	arg1 &rest args
v-abs	a
v-fun	fun a &optional (return-type t)
v-make	beg end &key (by 1) (element-type t)
v-max	s
v-min	s
v/	arg1 &rest args
variance	s

scalar-product

a b

[Function]

Also called dot product. Performs the scalar product of two vectors.

v-abs

[Function]

Returns the vector of absolute values of a vector.

v-make

beg end &key (by 1) (element-type t)

[Function]

Makes a vector from increasing or decreasing values.

     MATHS> (v-make 1 10) 
     #(1 2 3 4 5 6 7 8 9 10) 
     MATHS> (v-make 1 10 :by 2) 
     #(1 3 5 7 9) 
     MATHS> (v-make 10 1 :by -3) 
     #(10 7 4 1)

v-fun

fun a &optional (return-type t)

[Function]

Apply a function to an array.

save-array

a filename

[Function]

Saves the values of a vector in an ascii file, vertically.

diff

s &key (pad nil)

[Function]

Calculates differences between adjacent elements of an vector s. Set the pad argument to T to add a zero in the end of the result vector.

mean

[Function]

Computes the mean value of the elements of a sequence.

variance

[Function]

Computes the variance of the elements of a sequence.

v-max

[Function]

Finds the maximum value of a sequence.

v-min

[Function]

Finds the minimum value of a sequence.

swap-array

in-array

[Function]

Rotates a vector by its half-size.

    MATHS> (swap-array #(1 2 3 4)) 
     #(3 4 1 2)

pad-array

array &key (before 0) (after 0) (pad-value 0)

[Function]

Adds elements of value pad-value before and/or after the vector.

&rest args

[Function]

Adds numbers and/or vectors element-wise.

arg1 &rest args

[Function]

Substracts numbers and/or vectors element-wise.

&rest args

[Function]

Multiplies numbers and/or vectors element-wise.

arg1 &rest args

[Function]

Divides numbers and/or vectors element-wise.