Table of Contents
........................................................................................................................................ 1
Problem 2 - Atlantic City Temperature Data ............................................................................ 1
Problem 3 - Surprise! .......................................................................................................... 2
Problem 4 - 'BM_dem_ascii.txt' graph .................................................................................... 4
% Homework #5b
% Zane Williams
% 19 November 2020
Problem 2 - Atlantic City Temperature Data
clear; clc;
data = dlmread('AtlanticCity_TemperatureData.csv'); % load data
dates = data(:,1);
fdates = dates(1:end) - dates(1); % subtracts the first date value
from all other dates
col_fdates = transpose(fdates); % tells you the fractional number of
days since Jan 1, 2015 at midnight
figure;
hold on
plot(col_fdates, data(:,2),'r')
plot(col_fdates, data(:,3),'b') % plots air and water temperature vs
day
% pretty up the graph
grid on
title('Atlantic City Air and Water Temperatures in
2015','FontWeight','bold','FontSize',16);
xlim([0 365])
legend('Air Temp. (C)', 'Water Temp. (C)')
xlabel('Date (Months of 2015)','fontsize',14)
ylabel('Temperature (Degrees Celcius)','fontsize',14)
xticks([1,32, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335]) %
creates ticks at each month
xticklabels({'January','February','March','April','May','June','July','August','Sep
set(gcf, 'position', [260 378 1225 625]);
1
Problem 3 - Surprise!
clear;clc;
ct = 0; % a counter
fid = fopen('surprise.txt', 'r'); % open file for reading
while feof(fid) ~= 1
ct = ct + 1; % increase counter by 1
dataset{ct} = fgetl(fid); % grab entire line of text from file, store
as string in the ct^th cell
end
for i = 1:ct
for j = 1:length(dataset{i})
fprintf('%s', dataset{i}(j)); % writes data to text file
pause(0.001);
end
end
_______
_,,ad8888888888bba,_
,ad88888I888888888888888ba,
,88888888I88888888888888888888a,
,d888888888I8888888888888888888888b,
d88888PP"""" ""YY88888888888888888888b,
,d88"'__,,--------,,,,.;ZZZY8888888888888,
,8IIl'" ;;l"ZZZIII8888888888,
,I88l;' ;lZZZZZ888III8888888,
,II88Zl;. ;llZZZZZ888888I888888,
,II888Zl;. .;;;;;lllZZZ888888I8888b
,II8888Z;; `;;;;;''llZZ8888888I8888,
II88888Z;' .;lZZZ8888888I888b
II88888Z; _,aaa, .,aaaaa,__.l;llZZZ88888888I888
II88888IZZZZZZZZZ, .ZZZZZZZZZZZZZZ;llZZ88888888I888,
II88888IZZ<'(@@>Z| |ZZZ<'(@@>ZZZZ;;llZZ888888888I88I
2
,II88888; `""" ;| |ZZ; `""" ;;llZ8888888888I888
II888888l `;; .;llZZ8888888888I888,
,II888888Z; ;;; .;;llZZZ8888888888I888I
III888888Zl; .., `;; ,;;lllZZZ88888888888I888
II88888888Z;;...;(_ _) ,;;;llZZZZ88888888888I888,
II88888888Zl;;;;;' `--'Z;. .,;;;;llZZZZ88888888888I888b
]I888888888Z;;;;' ";llllll;..;;;lllZZZZ88888888888I8888,
II888888888Zl.;;"Y88bd888P";;,..;lllZZZZZ88888888888I8888I
II8888888888Zl;.; `"PPP";;;,..;lllZZZZZZZ88888888888I88888
II888888888888Zl;;. `;;;l;;;;lllZZZZZZZZW88888888888I88888
`II8888888888888Zl;. ,;;lllZZZZZZZZWMZ88888888888I88888
II8888888888888888ZbaalllZZZZZZZZZWWMZZZ8888888888I888888,
`II88888888888888888b"WWZZZZZWWWMMZZZZZZI888888888I888888b
`II88888888888888888;ZZMMMMMMZZZZZZZZllI888888888I8888888
`II8888888888888888 `;lZZZZZZZZZZZlllll888888888I8888888,
II8888888888888888, `;lllZZZZllllll;;.Y88888888I8888888b,
,II8888888888888888b .;;lllllll;;;.;..88888888I88888888b,
II888888888888888PZI;. .`;;;.;;;..; ...88888888I8888888888,
II888888888888PZ;;';;. ;. .;. .;. .. Y8888888I88888888888b,
,II888888888PZ;;'
`8888888I8888888888888b, II888888888'
888888I8888888888888888b ,II888888888
,888888I88888888888888888 ,d88888888888
d888888I8888888888ZZZZZZZ ,ad888888888888I
8888888I8888ZZZZZZZZZZZZZ
,d888888888888888'
888888IZZZZZZZZZZZZZZZZZZ ,d888888888888P'8P'
Y888ZZZZZZZZZZZZZZZZZZZZZ ,8888888888888, "
,ZZZZZZZZZZZZZZZZZZZZZZZZd888888888888888,
,ZZZZZZZZZZZZZZZZZZZZZZZZZZZ888888888888888888a,
_
,ZZZZZZZZZZZZZZZZZZZZ888888888888888888888888888888ba,_d'
,ZZZZZZZZZZZZZZZZZ888888888888888888888888888888888888888888bbbaaa,,,______,ZZZZZ
3
Problem 4 - 'BM_dem_ascii.txt' graph
clear;clc;
% a) load first 5 lines of the file
fid2 = fopen('BM_dem_ascii.txt', 'r');
textlines = cell(5,1);
for ii = 1:5
textlines(ii) = {fgetl(fid2)};
end
% convert to numeric data
ncols = str2double(textlines{1} (15:end));
nrows = str2double(textlines{2} (15:end));
xllcorner = str2double(textlines{3} (15:end));
yllcorner = str2double(textlines{4} (15:end));
cellsize = str2double(textlines{5} (15:end));
x = [xllcorner:cellsize:(((ncols)*cellsize)+xllcorner)];
y = [yllcorner:cellsize:(((nrows - 6)*cellsize)+yllcorner)];
BM = cell2mat(textscan(fid2,'','delimiter',' ','headerlines',6)); %
loads elevation data and turns into a regular matrix
s(1) = subplot(1,2,1);
pcolor(x - x(1), y - y(1), BM); shading flat;
colorbar; caxis([-3 2.5])
xlabel('x (m)'); ylabel('y (m)'); title('\bf Original Data')
set(s(1),'layer','top')
neg_vals = find(BM < 0); % find negative values
BM(neg_vals) = NaN; % turns negative values to Nan
BM_mod = BM;
limits = [get(s(1), 'xlim') get(s(1), 'ylim')];
s(2) = subplot(1,2,2);
pcolor(x - x(1), y - y(1), BM_mod);
shading flat
colorbar;
caxis([-3 2.5]);
axis(limits);
xlabel('x (m)');
ylabel('y (m)');
title('\bf Elevations > 0 Only');
set(s(2),'layer','top');
4
Published with MATLAB® R2020a
