hello
4+7
ans*2
x = 40*3 - 6.5*pi
6^7
sqrt(78)
(6-5)*((5-9)+2)
v = [43 25 12 10 2]
2*v
8*v + 7
w = [13 12 11 10 9]
v + w
v.*w
v*w
sin(4)
cos(.3)
exp(7)
exp(-7)
help sin
sin(v)
r = rand(5,8)
sin(r)
rand
rand(8,4)
zeros(8,4)
ones(8,4)
pi*ones(8,4)
format long
pi*ones(8,4)
format short
pi*ones(8,4)
x = [-10:10]
x = [-10:.1:10]
y = x.^2
figure
plot(x,y)
get(1,'color')
set(1,'color',[1 1 1])
set(1,'color',[0 0 0])
set(1,'color',[0 0 1])
set(1,'color',[1 1 1])
xlabel('Variable X')
ylabel('Variable Y')
set(gca, 'fontsize', 20)
title('Parabola')
saveas(1,'parabola_figure.png')
cd ../
cd CSASS
ls
cd Workshop_Oct19_2018/
ls
saveas(1,'parabola_figure.png')
plot(x,y,'color', [1 .4 .4])
hold on
plot(x,-y)
plot(x,-y,'color',[0 1 0],'linewidth',3)
P = plot(x,-y,'color',[0 1 0],'linewidth',3)
plot(x,y,'o','color','b')
text(-6, 60, 'Blue curve', 'fontsize', 18)
bar(y)
clf
bar(y)
bar([4 3 5 2 4])
x = rand(1,20);
x = 4
x = rand(1,20)
x = rand(1,2000)
x = rand(1,2000);
randn
2*randn + 5
x = 2*randn(1,100) + 5
hist(x)
v = [67	125	70	180
62	150	73	195
59	110	68	170
70	159	66	159
68	123	71	182
66	130	70	202
63	152	67	177
64	138	65	146
67	149	74	188
62	112	70	192]
xlsread('sample_data2')
[Num Txt Raw] = xlsread('sample_data2')
who
whos
save myvariables.mat v w x y
clear all
who
whos
x
load myvariables.mat
whos
v
w
xlsread('sample_data2','A2:D11')
v = xlsread('sample_data2','A2:D11')
mean(v)
mean(v,2)
mean(mean(v))
mean(v(:))
v(:)
v
v(5,2)
v(5,:)
v(:,2)
v(:,1)
mean(v(:,1))
std(v)
std(v(:,1))
median(v(:,1))
mode(v(:,1))
min(v(:,1))
max(v(:,1))
sort(v(:,1))
[v2 k] = sort(v(:,1))
help sort
sort(v(:,1),1,'descend')
vsorted = sort(v(:,1))
vsorted(10:-1:1)
vsorted(end:-1:1)
summary
grpstats(vsorted(end:-1:1))
[a b c d] = grpstats(vsorted(end:-1:1))
[a b c d e f ] = grpstats(vsorted(end:-1:1))
w = [67	125
62	150
59	110
70	159
68	123
66	130
63	152
64	138
67	149
62	112
70	180
73	195
68	170
66	159
71	182
70	202
67	177
65	146
74	188
70	192]
figure
plot(w(:,1),w(:,2))
plot(w(:,1),w(:,2),'-')
plot(w(:,1),w(:,2),'.-')
plot(w(:,1),w(:,2),'.')
plot(w(:,1),w(:,2),'.','markersize',20)
plot(w(:,1),w(:,2),'.','markersize',20,'color','k')
xlabel('Heights')
ylabel('Weights')
edit gender_data.m
gender_data
commandhistory
x = randn(20,1);
y = randn(20,1);
x = randn(20,1)
figure
plot3(x,y,z)
z = randn(20,1);
plot3(x,y,z)
plot3(x,y,z,'*')
xlabel('x')
ylabel('y')
zlabel('z')
view(0,-90)
view(44,-20)
hist3([x y])
sample_survey
nick
42
blue
clear all
load nick.mat
whos
q2
q2*2
q3
sample_click
clear all
load click_data.mat
clear all
load('click_data.mat')
whos
x
y
rt
face_modeling
for i=1:100
imagesc(rand(100,100)); axis equal; colormap gray;
pause(.7)
end
commandhistory