Matplotlib
matplotlib
matplotlib
matplotlib matplotlib
"Sandro Tosi: Matplotlib for Python Developers, Packt Publishing (2009)"
gnuplot matlab R excel mathematica ...
matplotlib
python
gnuplot
EPS, PDF, PNG, PS, SVG latex
1 import
matplotlib.pyplot
as
plt 2
3 plt.plot([3,
1,
5,
8,
7,
6,
4,
2]) 4 plt.show()
matplotlib
pyplot
"plt.
"
[3, 1, 5, 8, 7, 6, 4, 2]
y
plot
0 0, 1, 2, ..
?
plt plt
x
0, 1, 2, 3, 4, 5, 6, 7
y
x
x
x
1 x=range(10) 2 y=
[xt**2
for
xt
in
x] 3 plt.plot(x,
y) 4 plt.show()
[xt**2 for xt in x]
x
xt
y
for xt**2
g2
?
1 x=range(10) 2 y=[] 3 for
xt
in
x: 4
y.append(xt**2) 5 plt.plot(x,
y) 6 plt.show()
"
range(10) 0 10-1=9 range(x, y, z) x y-1
?
"
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
z
xz
x
range()
numpy
1 import
matplotlib.pyplot
as
plt 2 import
numpy
as
np 3
4 x=np.arange(0.5,
3.0,
0.2) 5 plt.plot(x,
[3.0*xt**2--xt**3
for
xt
in
x]) 6 plt.show()
python
range()
arange()
?
plot
show
g4
1 import
matplotlib.pyplot
as
plt 2 import
numpy
as
np 3
4 x=np.arange(0.0,
2.0,
0.1) 5 plt.plot(x,
[xt**2
for
xt
in
x]) 6 plt.plot(x,
[xt**3
for
xt
in
x]) 7 plt.show()
2
plt.plot(x, [xt**2 for xt in x], x, [xt**3 for xt in x])
plt.plot(x, x**2, x, x**3) arange()
np.arrange
range python
?
numpy
y=ax(x-a)
x
a
0 20
2.5
0 10
0.1
1
plt.grid(True)
True python
plt.axis([xmin, xmax, ymin, ymax])
x
xmin xmax y
plt.axis(ymin= , xmin= )
plt.xlabel("
")
plt.ylabel("
")
xy
plt.title("
")
g5 ymin ymax
plt.plot(x, y, label="
")
x, y
plt.legend()
plt.legend(["
", "
"])
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