coding in r

In statistics and machine learning, it is often usefulecessary to rescale (or normalize) the range of data values to a standard interval. The simplest method of rescaling is min-max scaling (or min-max normalization), which rescales the range of the data values to the interval [0,1]. Formally, if x=(x1,x2,,xn) is a sample of data values, then the min-max scaling to [0,1] is zi=max(x)min(x)ximin(x),fori=1,2,,n The scaled values z=(z1,z2,,zn) would have a range of [0,1]. More generally, the min-max scaling to an interval [a,b], with a