In Julia's ecosystem, the inbuilt reshape function allows converting a vector into a matrix. Typically, this function returns an array having the same data as the specified array but with different dimensions.
The syntax of the reshape function is given below.
reshape(input_array, output_dims)
It accepts the following parameters:
input_array: The array to be processed
output_dims: The specified dimension
The output dimensions, output_dims, can be specified either as a list of arguments or as a shape tuple. One dimension can be specified with a : and its length is calculated so that its product with all the specified dimensions corresponds to the original array's input_array length.
Let's look into the following examples showing how to perform such a conversion:
This example shows how to convert a vector into a 1-D matrix:
v = [10,20,30,40,50]print("input vector:",v)print("\noutput matrix:",reshape(v,(:,1)))
Line 1: Defines a vector and stores it in a variable called v.
Line 2: Prints out an informative message showing the specified vector.
Line 3: Converts the vector into a 1-D matrix and print out the output generated.
This example illustrates how to transform a vector into a 2-D matrix:
v = [0:9;]print("input vector:",v)print("\noutput matrix:",reshape(v,(2,5)))
Line 1: Defines a vector of integer values ranging from 0 to 9 and stores it in a variable called v.
Line 2: Prints out an informative message showing the specified vector.
Line 3: Converts the vector into a 2-D matrix while specifying as dimensions (2,5), which means 2 dimensions of 5 elements each, and prints out the output generated.
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