From 7b044ffe0f6e3c811850387a721704963012c90f Mon Sep 17 00:00:00 2001 From: Santo Cariotti Date: Fri, 10 Dec 2021 16:30:50 +0100 Subject: mms: add lecture --- Year_3/MMS/UStemps.txt | 57 +++++++++++++++++++++++++++++++++++++++++++ Year_3/MMS/lecture_20211202.m | 38 +++++++++++++++++++++++++++++ 2 files changed, 95 insertions(+) create mode 100644 Year_3/MMS/UStemps.txt create mode 100644 Year_3/MMS/lecture_20211202.m (limited to 'Year_3') diff --git a/Year_3/MMS/UStemps.txt b/Year_3/MMS/UStemps.txt new file mode 100644 index 0000000..1ae1ec1 --- /dev/null +++ b/Year_3/MMS/UStemps.txt @@ -0,0 +1,57 @@ +City JanTemp Lat Long +Mobile, AL 44 31.2 88.5 +Montgomery, AL 38 32.9 86.8 +Phoenix, AZ 35 33.6 112.5 +Little Rock, AR 31 35.4 92.8 +Los Angeles, CA 47 34.3 118.7 +San Francisco, CA 42 38.4 123.0 +Denver, CO 15 40.7 105.3 +New Haven, CT 22 41.7 73.4 +Wilmington, DE 26 40.5 76.3 +Washington, DC 30 39.7 77.5 +Jacksonville, FL 45 31.0 82.3 +Key West, FL 65 25.0 82.0 +Miami, FL 58 26.3 80.7 +Atlanta, GA 37 33.9 85.0 +Boise, ID 22 43.7 117.1 +Chicago, IL 19 42.3 88.0 +Indianapolis, IN 21 39.8 86.9 +Des Moines, IA 11 41.8 93.6 +Wichita, KS 22 38.1 97.6 +Louisville, KY 27 39.0 86.5 +New Orleans, LA 45 30.8 90.2 +Portland, ME 12 44.2 70.5 +Baltimore, MD 25 39.7 77.3 +Boston, MA 23 42.7 71.4 +Detroit, MI 21 43.1 83.9 +Minneapolis, MN 2 45.9 93.9 +St. Louis, MO 24 39.3 90.5 +Helena, MT 8 47.1 112.4 +Omaha, NE 13 41.9 96.1 +Concord, NH 11 43.5 71.9 +Atlantic City, NJ 27 39.8 75.3 +Albuquerque, NM 24 35.1 106.7 +Albany, NY 14 42.6 73.7 +New York, NY 27 40.8 74.6 +Charlotte, NC 34 35.9 81.5 +Raleigh, NC 31 36.4 78.9 +Bismarck, ND 0 47.1 101.0 +Cincinnati, OH 26 39.2 85.0 +Cleveland, OH 21 42.3 82.5 +Oklahoma City, OK 28 35.9 97.5 +Portland, OR 33 45.6 123.2 +Harrisburg, PA 24 40.9 77.8 +Philadelphia, PA 24 40.9 75.5 +Charleston, SC 38 33.3 80.8 +Nashville, TN 31 36.7 87.6 +Amarillo, TX 24 35.6 101.9 +Galveston, TX 49 29.4 95.5 +Houston, TX 44 30.1 95.9 +Salt Lake City, UT 18 41.1 112.3 +Burlington, VT 7 45.0 73.9 +Norfolk, VA 32 37.0 76.6 +Seattle, WA 33 48.1 122.5 +Spokane, WA 19 48.1 117.9 +Madison, WI 9 43.4 90.2 +Milwaukee, WI 13 43.3 88.1 +Cheyenne, WY 14 41.2 104.9 \ No newline at end of file diff --git a/Year_3/MMS/lecture_20211202.m b/Year_3/MMS/lecture_20211202.m new file mode 100644 index 0000000..0e56243 --- /dev/null +++ b/Year_3/MMS/lecture_20211202.m @@ -0,0 +1,38 @@ +f = @(x) x.^2; +x = 0:0.1:2; +y = f(x); +integral(f, 0, 1); + +g = @(x) exp(-2 * x.^2); +integral(g, 1, inf); + +% --- + +load fish; +price70 = table2array(fish(:, 2)); +xbar = mean(price70); +s = std(price70); + +% Normal function +f = @(x) (1/s/sqrt(2*pi))*exp(-(x-xbar).^2/(s^2)/2); + +integral(f, xbar, inf); % 0.5000 + +x = (xbar- 100):1.0:(xbar+100); +y = f(x); + +% Integrated normal function +yy = normpdf(x, xbar, s); + +% Plots are the same +% plot(x, yy, 'o', x, yy, '+') + +ustemps = readtable("UStemps.txt"); +jantemps = table2array(ustemps(:, 2)); + +% normrnd(0, 1); + +tbar = mean(jantemps); +ds = std(jantemps); + +norminv(0.5, tbar, ds); % with 0.5 you have the mean \ No newline at end of file -- cgit v1.2.3-18-g5258