How to get inverse Matrix / RDD or how to solve linear system of equations

2015-10-23 Thread Zhiliang Zhu
Hi Sujit, and All, Currently I lost in large difficulty, I am eager to get some help from you. There is some big linear system of equations as:Ax = b,  A with N number of row and N number of column, N is very large, b = [0, 0, ..., 0, 1]TThen, I will sovle it to get x = [x1, x2, ..., xn]T. The

Re: How to get inverse Matrix / RDD or how to solve linear system of equations

2015-10-23 Thread Sujit Pal
Hi Zhiliang, For a system of equations AX = y, Linear Regression will give you a best-fit estimate for A (coefficient vector) for a matrix of feature variables X and corresponding target variable y for a subset of your data. OTOH, what you are looking for here is to solve for x a system of

Re: How to get inverse Matrix / RDD or how to solve linear system of equations

2015-10-23 Thread Zhiliang Zhu
Hi Sujit ,  Firstly, I must show my deep appreciation and respect towards your kind help and excellent knowledge.It would be the best if you and me are in the same place then I shall specially go to express my thanks and respect to you. I will try your way by spark mllib SVD . For Linear