Add x-values to numpy array containing only y-values

Question

I have a dataset that only contains y-values in one column. I want to insert a column of x-values that needs to be 0, 10, 20, 30... as long as the array. how would I go about that? JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

This should do it: myY = [1, 4, 3, 6, 8, 4] myX = [i * 10 for i,y in enumerate(myY)] print(myX) # -> [0, 10, 20, 30, 40, 50] Edit In case you are working with Numpy you could do something like the following: myY = np.array([1, 4, 3, 6, 8, 4]) myData = np.vstack((myY, [i * 10 for i,y in enumerate(myY)])) When