import matplotlib.pyplot as plt
import numpy
import matplotlib.ticker as mticker
class Draw:
def __init__(self):
plt.rcParams['font.sans-serif'] = ['Heiti TC']
self.key = 'Python'
self.dataSource = '拉勾网'
'''
城市职位数量
'''
def drawCityNum(self,allData,fileName):
canvas = plt.figure(1, facecolor='black') # 设置视图画布1
canvas.set_size_inches(18.5, 10.5)
ax1_1 = canvas.add_subplot(2, 1, 1, facecolor='#4f4f4f',alpha=0.3) # 在视图1中设置子图1,背景色灰色，透明度0.3(figure.add_subplot 和plt.suplot都行)
plt.tick_params(colors='white') # 设置轴的颜色为白色
allData['jobsCity'].value_counts().plot(kind='bar', rot=0, color='#ef9d9a') # 画直方图图
# 设置图标题，x和y轴标题
plt.title(self.dataSource + self.key + '城市在招职位数分布图', fontsize=18, color='yellow') # 设置标题
plt.xlabel('城市', fontsize=14, color='yellow') # 设置X轴轴标题
plt.ylabel('职位数量', fontsize=14, color='yellow') # 设置Y轴轴标题
# 设置说明，位置在图的右上角
ax1_1.text(13, 453, '城市总数:'+str(len(allData['jobsCity'].value_counts().values))+'(个)', fontsize=12, color='cyan') # 设置说明，位置在图的右上角
ax1_1.text(13, 403, '职位总数:'+str(allData.shape[0])+'(条)', fontsize=12, color='cyan')
ax1_1.text(13, 353, '有效职位:'+str(allData.shape[0])+'(条)', fontsize=12, color='red')
# 添加每一个城市的坐标值
list_1 = allData['jobsCity'].value_counts().values
for i in range(len(list_1)):
ax1_1.text(i - 0.3, list_1[i], str(list_1[i]), color='yellow')
# 可以用plt.grid(True)添加栅格线
# 可以用下面语句添加注释箭头。指向上海，xy为坐标值、xytext为注释坐标值，facecolor为箭头颜色。
# arrow = plt.annotate('职位数:xxx', xy=(1,xxx), xytext=(3, xxx),color='blue',arrowprops=dict(facecolor='blue', shrink=0.05))
ax1_2 = canvas.add_subplot(2, 1, 2) # 设置子图2，是位于子图1下面的饼状图
x = allData['jobsCity'].value_counts().values # x是数值列表，pie图的比例根据数值占整体的比例而划分
label_list = [] # label_list是构造的列表，装的是前8个城市的名称+职位占比。
for i in range(15):
t = allData['jobsCity'].value_counts().values[i] / allData['jobsCity'].value_counts().sum() * 100
city = allData['jobsCity'].value_counts().index[i]
percent = str('%.1f%%' % t)
label_list.append(city + percent)
# labels参数原本是与数值对应的标签列表，此处30个城市过多，所以只取了前8个城市显示。
# explode即饼图中分裂的效果explode=（0.1，1，1，。。）表示第一块图片显示为分裂效果
labels = label_list
explode = tuple([0.1] + [0] * 14)
# x = [471, 305, 278, 189, 107, 98, 71, 36, 30, 29, 22, 11, 11, 8, 1]
# print(len(labels),len(x),len(explode))
plt.pie(x, explode=explode, labels=labels, textprops={'color': 'yellow'})
if not fileName:
plt.show()
else:
plt.savefig('./canvas/'+fileName,dpi=100)
'''工作经验——职位数分布图'''
def drawJobsExp(self,data,fileName):
canvas = plt.figure(2, facecolor='black')
canvas.set_size_inches(18.5,10.5)
'''图表1-1-1'''
ax1_1 = canvas.add_subplot(2, 1, 1, facecolor='#4f4f4f', alpha=0.3)
data['jobsExp'].value_counts().plot(kind='bar', rot=0, color='#7fc8ff')
plt.tick_params(colors='white')
plt.title(self.dataSource + self.key + '工作经验——职位数分布图', fontsize=18, color='yellow')#标题
plt.xlabel('工作经验', fontsize=14, color='yellow')#x轴
plt.ylabel('职位数量', fontsize=14, color='yellow')#y轴
plt.grid(True)
ax1_1.text(3, 880, '城市总数:'+ str(len(data['jobsCity'].value_counts().values))+'(个)', fontsize=12, color='yellow')
ax1_1.text(3, 800, '职位总数:'+str(data.shape[0])+'(条)', fontsize=12, color='yellow')
ax1_1.text(3, 720, '有效职位:'+str(data.shape[0])+'(条)', fontsize=12, color='cyan')
'''图表1-1-2'''
ax1_2 = canvas.add_subplot(2, 1, 2)
# x是数值列表，pie图的比例根据数值占整体的比例而划分
x2 = data['jobsExp'].value_counts().values
labels = list(data['jobsExp'].value_counts().index[:len(x2)])
explode = tuple([0.1] * len(x2))
plt.pie(x2, explode=explode, labels=labels, autopct='%1.1f%%', textprops={'color': 'yellow'})
plt.axis('equal') # 显示为等比例圆形
ax1_2.legend(loc='lower right', shadow=True, fontsize=12, edgecolor='cyan')# 设置图例，方位为右下角
if not fileName:
plt.show()
else:
plt.savefig('./canvas/'+fileName,dpi=100)
'''工作经验——平均月薪分布图'''
def drawJobExpAndAvrMonth(self,data,allData,fileName):
avrData = data.iloc[-1]
plt.style.use('ggplot')
canvas = plt.figure(3, facecolor='black')
canvas.set_size_inches(18.5, 10.5)
ax3 = canvas.add_subplot(1, 1, 1, facecolor='#4f4f4f', alpha=0.3)
data.sort_values(ascending=False).round(1).plot(kind='barh', rot=0)
# 设置标题、x轴、y轴的标签文本
plt.title(self.dataSource + self.key + '工作经验——平均月薪分布图', fontsize=18, color='yellow')
plt.xlabel('平均月薪', fontsize=14, color='yellow')
plt.ylabel('工作经验', fontsize=14, color='yellow')
# 添加值标签
list3 = data.sort_values(ascending=False).values
for i in range(len(list3)):
ax3.text(list3[i], i, str(int(list3[i])), color='yellow')
# 设置标识箭头
plt.annotate('平均月薪:'+str(int(avrData))+'元/月', xy=(14197, 2.25), xytext=(20000, 3.05), color='yellow', fontsize=16, arrowprops=dict(facecolor='cyan', shrink=0.05))
ax3.text(30250, 4.25, '月薪样本数:'+str(allData.shape[0])+'(个)', fontsize=16, color='cyan')# 设置图例注释（alldata['xxx'].value_counts().sum()）
# 设置轴刻度文字颜色为白色
plt.tick_params(colors='white')
if not fileName:
plt.show()
else:
plt.savefig('./canvas/'+fileName,dpi=100)
'''
城市-月均工资
'''
def drawCityAndAvrMonth(self,data,allData,fileName):
avrData = data.iloc[-1]
plt.style.use('dark_background')
canvas = plt.figure(4)
canvas.set_size_inches(18.5, 10.5)
ax = canvas.add_subplot(1, 1, 1) # 可选facecolor='#4f4f4f',alpha=0.3，设置子图,背景色灰色，透明度0.3
data.sort_values(ascending=False).round(1).plot(kind='bar', rot=30) # 可选color='#ef9d9a'
plt.title(self.dataSource + self.key + u'城市——平均月薪分布图', fontsize=18, color='yellow') # 设置标题
plt.xlabel(u'城市', fontsize=14, color='yellow') # 设置X轴轴标题
plt.ylabel(u'平均月薪', fontsize=14, color='yellow') # 设置Y轴轴标题
ax.text(13.5, 18800, u'城市总数:'+str(len(allData['jobsCity'].value_counts().values))+'(个)', fontsize=12, color='#FF00FF') # 设置说明，位置在图的右上角
ax.text(13.5, 18200, u'月薪样本数:'+str(allData.shape[0])+'(条)', fontsize=12, color='#FF00FF')
listData = data.sort_values(ascending=False).values # 添加每一个城市的坐标值
for i in range(len(listData)):
ax.text(i-0.25, listData[i], int(listData[i]), color='yellow')
plt.annotate(u'全国月薪平均值:'+str(int(avrData))+'元/月', xy=(4.3, 14197), xytext=(4.8, 18000), color='#9B30FF', fontsize=14,arrowprops=dict(facecolor='#FF00FF', shrink=0.05))# 设置箭头注释
plt.tick_params(colors='pink')# 设置轴刻度文字颜色为粉色
if not fileName:
plt.show()
else:
plt.savefig('./canvas/'+fileName,dpi=100)
def drawEduAndCount(self,data,allData,fileName):
plt.style.use('dark_background')
canvas = plt.figure(5)
canvas.set_size_inches(18.5, 10.5)
ax1_1 = canvas.add_subplot(2, 1, 1) # 可选facecolor='#4f4f4f',alpha=0.3
data.value_counts().plot(kind='bar', rot=0) # color='#7fc8ff'
# 设置标题、x轴和y轴标题、图例文字
plt.title(self.dataSource + self.key + u'要求学历——职位数分布图', fontsize=18, color='yellow')
plt.xlabel(u'要求学历', fontsize=14, color='yellow')
plt.ylabel(u'职位数量', fontsize=14, color='yellow')
ax1_1.text(2, 1200, u'职位总数:'+ str(allData.shape[0]) +'(条)', fontsize=14, color='#B452CD')
# 设置坐标轴的的颜色和文字大小
plt.tick_params(colors='#9F79EE', labelsize=13)
# 设置坐标值文字
list5 = data.value_counts().values
for i in range(len(list5)):
ax1_1.text(i - 0.1, list5[i], int(list5[i]), color='yellow')
ax1_2 = canvas.add_subplot(2, 1, 2)
xl = data.value_counts().values
labels = list(data.value_counts().index)
explode = tuple([0.1] * len(xl))
plt.pie(xl, explode=explode, labels=labels, autopct='%1.1f%%', textprops={'color': '#B452CD'})
plt.axis('equal')
ax1_2.legend(loc='lower right', shadow=True, fontsize=12, edgecolor='#B452CD')
plt.tick_params(colors='#9F79EE', labelsize=13)
if not fileName:
plt.show()
else:
plt.savefig('./canvas/'+fileName,dpi=100)
def drawEduMonthly(self,data,allData,fileName):
plt.style.use('ggplot')
canvas = plt.figure(6, facecolor='black')
canvas.set_size_inches(18.5, 10.5)
ax = canvas.add_subplot(1, 1, 1, facecolor='#4f4f4f', alpha=0.3)
data.mean().round(1).sort_values().plot(color='cyan') # 在条形图上叠加一个折线图
data.mean().round(1).sort_values().plot(kind='bar', rot=0)
# 设置标题、x轴、y轴的标签文本
plt.title(self.dataSource + self.key + u'要求学历——平均月薪分布图', fontsize=18, color='yellow')
plt.xlabel(u'要求学历', fontsize=14, color='yellow')
plt.ylabel(u'平均月薪', fontsize=14, color='yellow')
# 添加值标签(坐标值文字)
listData = data.mean().round(1).sort_values().values
for i in range(len(listData)):
ax.text(i - 0.1, listData[i], int(listData[i]), color='yellow')
# 设置图例注释
ax.text(2, 17500, u'月薪样本数:'+str(allData.shape[0])+'(个)', fontsize=16, color='cyan')
# 设置轴刻度的文字颜色
plt.tick_params(colors='#9F79EE')
if not fileName:
plt.show()
else:
plt.savefig('./canvas/'+fileName,dpi=100)
def drawJobsExpAndEduForMonthly(self,data,allData,fileName):
xlist = list(data.mean().round(1)[:, '3-5年'].sort_values().index)
print(xlist)
data.mean().round(1)[:, '1-3年'].reindex(xlist)
plt.style.use('dark_background')
canvas = plt.figure(7, facecolor='black')
canvas.set_size_inches(18.5, 10.5)
ax = canvas.add_subplot(1, 1, 1, facecolor='#4f4f4f', alpha=0.3)
title = plt.title(self.dataSource + self.key +u'要求学历-工作经验-平均月薪分布图', fontsize=18, color='yellow')
xlabel = plt.xlabel(u'要求学历', fontsize=14, color='yellow')
ylabel = plt.ylabel(u'平均月薪', fontsize=14, color='yellow')
plt.tick_params(colors='cyan')
label_format = '{:,.0f}'
x2 = allData['jobsExp'].value_counts().keys()
# print(x2)
j = 1
keysList = []
for i in x2:
locals()['list'+str(j)] = data.mean().round(1)[:, i].reindex(xlist).values
j = j+1
keysList.append(i)
ind = numpy.arange(len(xlist)) # ind为x轴宽度，用numpy的array形式表示
width = 0.1 # 条形图的宽度，要合理设置否则太宽会摆不下
e = 1
imgList = []
for f in x2:
# print(locals()['list'+str(e)])
if e == 1:
locals()['img' + str(e)] = ax.bar(ind, locals()['list'+str(e)], width)
else:
locals()['img' + str(e)] = ax.bar(ind + width * (e -1), locals()['list' + str(e)], width)
imgList.append(locals()['img' + str(e)][0])
e = e+1
# # 设置X轴文本和位置调整
# ax.xaxis.set_major_locator(mticker.FixedLocator([0,1,2]))
ax.set_xticklabels(xlist)
# ax.set_xticklabels([label_format.format(x) for x in ticks_loc])
ax.set_xticks(ind + width / 2)
#
# # 设置文字说明
text1 = ax.text(0.1, 34100, u'数据来源:' + self.dataSource, fontsize=13, color='#9F79EE')
text2 = ax.text(0.1, 33200, u'职位关键词：' + self.key, fontsize=13, color='#9F79EE')
text3 = ax.text(0.1, 32200, u'工作城市:全国'+str(len(allData['jobsCity'].value_counts().values))+'座城市', fontsize=13, color='#9F79EE')
text4 = ax.text(0.1, 31200, u'职位数量:共计'+str(allData.shape[0])+'(条)', fontsize=13, color='#9F79EE')
ax.legend(imgList,keysList,fontsize=13,facecolor='black',loc='upper left')
#
# # 设置栅格
# plt.grid(True)
#
if not fileName:
plt.show()
else:
plt.savefig('./canvas/'+fileName,dpi=100)
