python - advanced - 18 - Matplotlib

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Matplotlib

Matplotlib

bilgileri grafik uzerine gostermek icin kullanilir

pip install matplotlib

import matplotlib.pyplot as plt

import numpy as np

x=[1,2,3,4]

y=[1,4,9,16]

plt.plot(x,y,"o-r")

plt.axis([0,6,0,20])

plt.title("yokomako")

plt.xlabel("totmoto")

plt.ylabel("shoshondama")

plt.show()

#

grafik ekrana cikar

ayrica grafikte yapilabilecek diger islemler

import matplotlib.pyplot as plt

import numpy as np

x=[1,2,3,4]

y=[1,4,9,16]

plt.plot(x,y,color="red",linewidth="3") # cizgi renk ve kalinligi degistirmek

plt.show()

yesil aralikli cizgi plot

plt.plot(x,y,'--g')

kesisme nokta yuvarlak olsun + yesil aralikli cizgi

plt.plot(x,y,'o--g')

legend

plt.plot(x,y,'o--g',label="something")

plt.legend()

uc adet grafik alt alta sergilensin

x=np.linspace(0,2,100)

fig,axs = plt.subplots (3) #3 adet grafik

axs[0].plot(x,x,color="red")

axs[0].set_title("linear")

axs[1].plot(x,x**2,color="purple")

axs[1].set_title("quadratic")

axs[2].plot(x,x**2,color="yellow")

axs[2].set_title("cubic")

plt.tight_layout() # grafik ciktida grafikler arasi bosluk birakir

plt.show()

baska gorunumle sunum:

x=np.linspace(0,2,100)

fig,axs = plt.subplots (2,2) #4 adet grafik

axs[0,0].plot(x,x,color="red")

axs[0,0].set_title("linear")

axs[0,1].plot(x,x**2,color="purple")

axs[0,1].set_title("quadratic")

axs[1,0].plot(x,x**3,color="yellow")

axs[1,0].set_title("cubic")

axs[1,1].plot(x,x**4,color="green")

axs[1,1].set_title("**4")

plt.tight_layout()

plt.show()

Ekranda belirli konuma koyarak + grafigin buyuklugunu soyleyerek graifigi yazdirmak

axes = figure.add_axes([0.2,0.1,0.7,0.8])

turuncu olan degerler soldan ve asagidan itibaren yeri yuze olarak belirler: %20 sagdan itibaren yer al

mavi deger ise grafik buyuklugunu belirtir: %70 en, %80 yukseklik

Bunu kullanarak iki grafigi ust uste yazdirmak da mumkun

import matplotlib.pyplot as plt

import numpy as np

x=np.linspace(10,90,20)

y = x**3

figure = plt.figure()

axes = figure.add_axes([0.2,0.1,0.7,0.8])

#kagitta soldan ve asagidan ne kadar uzak 0.2,0.1 - y label icin gerekli

#kagitta grafik ne kadar yer kaplayacak 0.7,0.8

# kalan 0.1 bosluk kagidin sagina ve uste yapismasin diye bosluk

axes.plot(x,y,"b") # blue color

axes.set_xlabel("XX label")

axes.set_ylabel("YY label")

axes.set_title("Cube")

plt.tight_layout()

plt.show()