# -*- coding: gbk -*-
import matplotlib.pyplot as plt

input_values = [1,2,3,4,5]
squares = [1,4,9,16,25]
plt.plot(input_values,squares,linewidth=5)

plt.title('Square Numbers',fontsize = 24)
plt.xlabel('Value',fontsize = 14)
plt.ylabel('Square of Value',fontsize=14)

plt.tick_params(axis='both',labelsize=14)

plt.show()


__________________________
x_values = [1,2,3,4,5]
y_values = [1,4,9,16,25]

plt.scatter(x_values,y_values,s=100)
plt.title('Square Numbers',fontsize = 24)
plt.xlabel('Value',fontsize = 14)
plt.ylabel('Square of Value',fontsize=14)

plt.tick_params(axis='both',which='major',labelsize=14)
plt.show()
___________________________
# -*- coding: gbk -*-
import matplotlib.pyplot as plt

x_values = list(range(1,1001))
y_values = [x**2 for x in x_values]

#plt.scatter(x_values,y_values,c='red',edgecolor ='none', s=40)
#RGB設定顏色
#plt.scatter(x_values,y_values,c=(0.8,0,0),edgecolor ='none', s=40)
#根據Y設定顏色
plt.scatter(x_values,y_values,c=y_values,cmap = plt.cm.Reds,edgecolor ='none', s=40)

plt.title('Square Numbers',fontsize = 24)
plt.xlabel('Value',fontsize = 14)
plt.ylabel('Square of Value',fontsize=14)

plt.tick_params(axis='both',which='major',labelsize=14)
plt.axis([0,1100,0,1100000])
#結果顯示
#plt.show()
#結果儲存
plt.savefig('squares_plot.png',bbox_inches='tight')

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#15-1
x_values = list(range(1,5000))
y_values = [x**3 for x in x_values]

plt.scatter(x_values,y_values,edgecolor ='none', s=40)

plt.title('Square Numbers',fontsize = 24)
plt.xlabel('Value',fontsize = 14)
plt.ylabel('Square of Value',fontsize=14)

plt.tick_params(axis='both',which='major',labelsize=14)
#結果顯示
plt.show()
____________________________________
from random import choice
class RandomWalk():
	def __init__(self,num_points = 5000):
		self.num_points = num_points
		
		self.x_values = [0]
		self.y_values = [0]
	def fill_walk(self):
		while len(self.x_values)<self.num_points:
			x_direction = choice([1,-1])
			x_distance = choice([0,1,2,3,4])
			x_step = x_direction * x_distance
			
			y_direction = choice([1,-1])
			y_distance = choice([0,1,2,3,4])
			y_step = y_direction * y_distance
			
			if x_step == 0 and y_step ==0:
				continue
				
			next_x = self.x_values[-1] + x_step
			next_y = self.y_values[-1] + y_step
			
			self.x_values.append(next_x)
			self.y_values.append(next_y)
————————————————————————————————————
import matplotlib.pyplot as plt
from bf import RandomWalk

rw = RandomWalk()
rw.fill_walk()
plt.scatter(rw.x_values,rw.y_values,s=15)
plt.show()
————————————————————————————————————————————
# -*- coding: gbk -*-
import matplotlib.pyplot as plt
from import_file import RandomWalk
while True:
	rw = RandomWalk(5000)
	rw.fill_walk()
	
	#設定繪圖視窗尺寸
	plt.figure(dpi=128,figsize=(10,6))
	
	point_numbers = list(range(rw.num_points))
	plt.scatter(rw.x_values,rw.y_values,c=point_numbers,cmap=plt.cm.Blues,edgecolor='none',s=1)
	plt.scatter(0,0,c='green',edgecolors='none',s=100)
	plt.scatter(rw.x_values[-1],rw.y_values[-1],c='red',edgecolors='none',s=100)
	
	plt.axes().get_xaxis().set_visible(False)
	plt.axes().get_yaxis().set_visible(False)
	
	plt.show()
	
	keep_running = input('Make another walk?(y/n):')
	if(keep_running=='n'):
		break
——————————————————————————————————————————————————————————————————————
#15-3
import matplotlib.pyplot as plt
from import_file import RandomWalk
while True:
	rw = RandomWalk(5000)
	rw.fill_walk()
	
	plt.scatter(rw.x_values,rw.y_values,linewidth=5)
	
	plt.show()
	
	keep_running = input('Make another walk?(y/n):')
	if(keep_running=='n'):
		break
——————————————————————————————————————————————————————————————————————
#15-5
from random import choice
class RandomWalk():
	def __init__(self,num_points = 5000):
		self.num_points = num_points
		
		self.x_values = [0]
		self.y_values = [0]
	def fill_walk(self):
		while len(self.x_values)<self.num_points:
			
			x_step = self.get_step()			
			y_step = self.get_step()
			
			if x_step == 0 and y_step ==0:
				continue
				
			next_x = self.x_values[-1] + x_step
			next_y = self.y_values[-1] + y_step
			
			self.x_values.append(next_x)
			self.y_values.append(next_y)
			
	def get_step(self):
		direction = choice([1,-1])
		distance = choice([0,1,2,3,4,5,6,7,8])
		step = direction * distance

		return step
#15-8
from import_file import Die

die1 = Die(8)
die2 = Die(8)
die3 = Die(8)
results = []
for roll_num in range(5000):
	result = die1.roll()+die2.roll()+die3.roll()
	results.append(result)
print(results)	


frequencies = []
max_result = die1.num_sides + die2.num_sides + die3.num_sides
for value in range(3,max_result):
	frequency = results.count(value)
	frequencies.append(frequency)
#print(frequentcies)

hist = pygal.Bar()
hist.title = "Results of rolling two D6 1000 times."
hist.x_labels = range(3,max_result+1)
hist.y_title = 'frequency of result'

hist.add('D6',frequencies)
hist.render_to_file('die_visual2.svg')