Normalises a 1 dimensional vector towards unit p norm. By default, p = 2 is used. For a given vector, eg: c(1,2,3), norm value is calculated as `x / |x|` where `|x|` is calculated as the square root of sum of square of values in the given vector.
normalise1d(vec, pnorm = 2L)vector containing integers or numeric values.
integer, default: 2
a vector containing normalised values
val <- c(1,10,5,3,8)
norm_val <- normalise1d(val)