MATLAB vs Python Syntax (II)

MATLAB	Python (Numpy)
Matrix Summary
sum(A) #veritical 1xn	A.sum(0) #1D array(n)
sum(A,2) #horizontal mx1	A.sum(1) #1D array(m)
sum(sum(A)) #total	A.sum()
max(A) #1xn	A.max(0) #(n)
max(A, [], 2) #mx1	A.max(1) #(m)
max(max(A))	A.max()
Shuffle Data
X(randperm(m), :)	np.random.permutation(A)
Plot Graph
-	import matplotlib.pyplot as plt
fugure(1)	plt.figure(1)
r=randn(5000,1)	r=np.randn(5000)
hist(r, 100)	plt.hist(r, 100)
figure(2)	plt.figure(2)
t=[0: 0.01: 0.98]	t=arange(0, 0.99, 0.01)
y1=sin(2*pi*t)	y1=np.sin(2*np.pi*t)
plot(t, y1)	plt.plot(t, y1)
hold no	#no need plt.clf() #clear
plot(t, y2, 'r')	plt.plot(t, y2, 'r')
xlabel('time')	plt.xlabel('time')
ylabel('value')	plt.ylabel('value')
legend('sin', 'cos')	plt.legend(('sin', 'cos'))
title('my plot')	plt.tittle('my plot')
close all	plt.close('all')
Flow Control
v=zero(10, 1)	v=np.zeros(10)
for i=1:2:10, #skip 2	for i in range(0,m,2):
..v(i) = 2^i;	..v[i] = 2 ** i
end;
i=1;	i=0
while i<=5,	while i<5:
..v(i) = 100;	..v[i] = 100
..i = i+1;	..i = i+1
end;
v(1)=2;	v[0]=2
if v(1)==1,	if v[0]==1:
..disp('The value is one');	..print 'The value is one'
elseif v(1)==2,	elif v[0]==2:
..disp('The value is two');	..print 'The value is two'
else,	else:
..disp('The value is others');	..print 'The value is others'
end;