|December 23rd, 2015, 03:11 PM||#1|
Joined: Oct 2013
From: New York, USA
Becoming A Data Scientist
I see this forum rarely gets posts, so I'm not expecting help, but I'm posting just in case. First, I will start by stating what math I know. Obviously, to do some of these things I could use a graphing calculator and/or Microsoft Excel.
Basic calculus with one variable: I can do derivatives and integrals of polynomials and calculate the area under a curve. I have my Calculus textbooks. Even though I might be able to learn it, I don't want to do anything that requires multi-variable calculus. I know that to find a relative maximum or minimum you set the derivative equal to 0.
Systems of linear equations: Two or three variables would be easy. I've done six variable many years ago, and I think I could do that now, but not quickly. Of course, I could do it quickly using a website that can solve systems of equations. I have not taken any courses specifically in Linear Algebra.
Probability and Statistics: I know the basics of permutations, combinations, probability with and without replacement, and working with independent or dependent events. I understand correlations and sometimes gather data on my own, guess the direction of the relationship (positive or negative correlation), and see if I'm right. I can calculate means and standard deviations and use the Normal Distribution Table for percentiles. I still have a book from Advanced Placement statistics and a college statistics book. I recently could do okay at the Advanced Placement Statistics multiple choice questions, but I would need to re-learn hypothesis testing and other problems where you show work. I have not studied multi-variable statistics but I'm interested in it. I briefly studied the chi-square distribution years ago, but I don't know anything about the chi-square, Poisson, Weibull, or other distributions. I am willing to learn other distributions.
Computer Programming: I read the basics of R but I didn't like it because it wasn't helpful at telling a user what he or she was doing wrong. I studied basic computer science in high school. I don't remember much, but I remember that a printer cannot print 5 copies, but it can print 1 copy 5 times using a loop like this:
Let x = 0
Print 1 copy
Let x = x + 1
If x = 5, exit the loop
Go back to the beginning of the loop
I am willing to learn computer programming, but it wouldn't be useful to know one programming language when most employers use a different programming language.
Algebra: I can use the quadratic formula. I can factor quadratic equations if the coefficient of x^2 is 1 (if the coefficient is greater than 1, I would rather use the quadratic formula). I know that the highest exponent of x is the number of solutions there will be and that solutions can be equal to each other and can be real or imaginary. I can multiply binomials.
I have a Bachelor of Arts in Economics. I've forgotten a lot of Economics, but I still have my Economics books.
I read the book Discovering Knowledge in Data: An Introduction to Data Mining by Daniel T. LaRose. I remember a little of it. The book gave a sample phone company that discovers that the customers leaving the company were more likely to have been paying for the international calling plan than the customers who stayed. I found that interesting, and you should find your job interesting. Obviously, in any industry that is not a monopoly, every company will inevitably have customers coming and going, but it isn't smart for a company to look at customers who leave as inevitable and not think about why the customers are leaving.
I can't travel and cannot take more classes in a physical college. I am willing to learn on my own or through a small number of courses that are entirely online. I would rather not take an online degree program that lasts months or years both because I would rather work than study and because I don't have much money for tuition. I understand that I have no data science work experience and I'm willing to take a job that doesn't pay much.
Last edited by skipjack; December 23rd, 2015 at 03:33 PM.
|December 23rd, 2015, 03:36 PM||#2|
Joined: Dec 2006
As you can't travel to take classes, is it also the case that you can't travel to reach your place of work?
|December 24th, 2015, 10:40 AM||#3|
Joined: Oct 2013
From: New York, USA
Last edited by EvanJ; December 24th, 2015 at 11:01 AM.
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