我是靠谱客的博主 高高钢笔,这篇文章主要介绍数据科学家赚多少?数据全分析与可视化 ⛵???? 引言???? 数据说明???? 导入工具库???? 加载数据集???? 数据预处理???? 数据分析&可视化???? 分析结论参考资料推荐阅读,现在分享给大家,希望可以做个参考。

???? 作者:韩信子@ShowMeAI
???? 数据分析实战系列:https://www.showmeai.tech/tutorials/40
???? AI 岗位&攻略系列:https://www.showmeai.tech/tutorials/47
???? 本文地址:https://www.showmeai.tech/article-detail/402
???? 声明:版权所有,转载请联系平台与作者并注明出处
???? 收藏ShowMeAI查看更多精彩内容

???? 引言

数据科学在互联网、医疗、电信、零售、体育、航空、艺术等各个领域仍然越来越受欢迎。在 ????Glassdoor的美国最佳职位列表中,数据科学职位排名第三,2022 年有近 10,071 个职位空缺。

除了数据独特的魅力,数据科学相关岗位的薪资也备受关注,在本篇内容中,ShowMeAI会基于数据对下述问题进行分析:

  • 数据科学中薪水最高的工作是什么?
  • 哪个国家的薪水最高,机会最多?
  • 典型的薪资范围是多少?
  • 工作水平对数据科学家有多重要?
  • 数据科学,全职vs自由职业者
  • 数据科学领域薪水最高的工作是什么?
  • 数据科学领域平均薪水最高的工作是什么?
  • 数据科学专业的最低和最高工资
  • 招聘数据科学专业人员的公司规模如何?
  • 工资是不是跟公司规模有关?
  • WFH(远程办公)和 WFO 的比例是多少?
  • 数据科学工作的薪水每年如何增长?
  • 如果有人正在寻找与数据科学相关的工作,你会建议他在网上搜索什么?
  • 如果你有几年初级员工的经验,你应该考虑跳槽到什么规模的公司?

???? 数据说明

我们本次用到的数据集是 ????数据科学工作薪水数据集,大家可以通过 ShowMeAI 的百度网盘地址下载。

???? 实战数据集下载(百度网盘):公众号『ShowMeAI研究中心』回复『实战』,或者点击 这里 获取本文 [37]基于pandasql和plotly的数据科学家薪资分析与可视化 『ds_salaries数据集

ShowMeAI官方GitHub:https://github.com/ShowMeAI-Hub

数据集包含 11 列,对应的名称和含义如下:

参数含义
work_year支付工资的年份
experience_level : 发薪时的经验等级
employment_type就业类型
job_title岗位名称
salary支付的总工资总额
salary_currency支付的薪水的货币
salary_in_usd支付的标准化工资(美元)
employee_residence员工的主要居住国家
remote_ratio远程完成的工作总量
company_location雇主主要办公室所在的国家/地区
company_size根据员工人数计算的公司规模

本篇分析使用到Pandas和SQL,欢迎大家阅读ShowMeAI的数据分析教程和对应的工具速查表文章,系统学习和动手实践:

????图解数据分析:从入门到精通系列教程

????编程语言速查表 | SQL 速查表

????数据科学工具库速查表 | Pandas 速查表

????数据科学工具库速查表 | Matplotlib 速查表

???? 导入工具库

我们先导入需要使用的工具库,我们使用pandas读取数据,使用 Plotly 和 matplotlib 进行可视化。并且我们在本篇中会使用 SQL 进行数据分析,我们这里使用到了 ????pandasql 工具库。

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# For loading data import pandas as pd import numpy as np # For SQL queries import pandasql as ps # For ploting graph / Visualization import plotly.graph_objects as go import plotly.express as px from plotly.offline import iplot import plotly.figure_factory as ff import plotly.io as pio import seaborn as sns import matplotlib.pyplot as plt # To show graph below the code or on same notebook from plotly.offline import init_notebook_mode init_notebook_mode(connected=True) # To convert country code to country name import country_converter as coco import warnings warnings.filterwarnings('ignore')

???? 加载数据集

我们下载的数据集是 CSV 格式的,所以我们可以使用 read_csv 方法来读取我们的数据集。

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# Loading data salaries = pd.read_csv('ds_salaries.csv')

要查看前五个记录,我们可以使用 salaries.head() 方法。

借助 pandasql完成同样的任务是这样的:

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# Function query to execute SQL queries def query(query): return ps.sqldf(query) # Showing Top 5 rows of data query(""" SELECT * FROM salaries LIMIT 5 """)

输出:

???? 数据预处理

我们数据集中的第1列“Unnamed: 0”是没有用的,在分析之前我们把它剔除:

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salaries = salaries.drop('Unnamed: 0', axis = 1)

我们查看一下数据集中缺失值情况:

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salaries.isna().sum()

输出:

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work_year 0 experience_level 0 employment_type 0 job_title 0 salary 0 salary_currency 0 salary_in_usd 0 employee_residence 0 remote_ratio 0 company_location 0 company_size 0 dtype: int64

我们的数据集中没有任何缺失值,因此不用做缺失值处理,employee_residencecompany_location 使用的是短国家代码。我们映射替换为国家的全名以便于理解:

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# Converting countries code to country names salaries["employee_residence"] = coco.convert(names=salaries["employee_residence"], to="name") salaries["company_location"] = coco.convert(names=salaries["company_location"], to="name")

这个数据集中的experience_level代表不同的经验水平,使用的是如下缩写:

  • CN: Entry Level (入门级)
  • ML:Mid level (中级)
  • SE:Senior Level (高级)
  • EX:Expert Level (资深专家级)

为了更容易理解,我们也把这些缩写替换为全称。

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# Replacing values in column - experience_level : salaries['experience_level'] = query("""SELECT REPLACE( REPLACE( REPLACE( REPLACE( experience_level, 'MI', 'Mid level'), 'SE', 'Senior Level'), 'EN', 'Entry Level'), 'EX', 'Expert Level') FROM salaries""")

同样的方法,我们对工作形式也做全称替换

  • FT: Full Time (全职)
  • PT: Part Time (兼职)
  • CT:Contract (合同制)
  • FL:Freelance (自由职业)
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# Replacing values in column - experience_level : salaries['employment_type'] = query("""SELECT REPLACE( REPLACE( REPLACE( REPLACE( employment_type, 'PT', 'Part Time'), 'FT', 'Full Time'), 'FL', 'Freelance'), 'CT', 'Contract') FROM salaries""")

数据集中公司规模字段处理如下:

  • S:Small (小型)
  • M:Medium (中型)
  • L:Large (大型)
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# Replacing values in column - company_size : salaries['company_size'] = query("""SELECT REPLACE( REPLACE( REPLACE( company_size, 'M', 'Medium'), 'L', 'Large'), 'S', 'Small') FROM salaries""")

我们对远程比率字段也做一些处理,以便更好理解

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# Replacing values in column - remote_ratio : salaries['remote_ratio'] = query("""SELECT REPLACE( REPLACE( REPLACE( remote_ratio, '100', 'Fully Remote'), '50', 'Partially Remote'), '0', 'Non Remote Work') FROM salaries""")

这是预处理后的最终输出。

???? 数据分析&可视化

???? 数据科学中薪水最高的工作是什么?

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top10_jobs = query(""" SELECT job_title, Count(*) AS job_count FROM salaries GROUP BY job_title ORDER BY job_count DESC LIMIT 10 """)

我们绘制条形图以便更直观理解:

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data = go.Bar(x = top10_jobs['job_title'], y = top10_jobs['job_count'], text = top10_jobs['job_count'], textposition = 'inside', textfont = dict(size = 12, color = 'white'), marker = dict(color = px.colors.qualitative.Alphabet, opacity = 0.9, line_color = 'black', line_width = 1)) layout = go.Layout(title = {'text': "<b>Top 10 Data Science Jobs</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>Job Title</b>', tickmode = 'array'), yaxis = dict(title = '<b>Total</b>'), width = 900, height = 600) fig = go.Figure(data = data, layout = layout) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 数据科学职位的市场分布

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fig = px.pie(top10_jobs, values='job_count', names='job_title', color_discrete_sequence = px.colors.qualitative.Alphabet) fig.update_layout(title = {'text': "<b>Distribution of job positions</b>", 'x':0.5, 'xanchor': 'center'}, width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 拥有最多数据科学工作的国家

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top10_com_loc = query(""" SELECT company_location AS company, Count(*) AS job_count FROM salaries GROUP BY company ORDER BY job_count DESC LIMIT 10 """) data = go.Bar(x = top10_com_loc['company'], y = top10_com_loc['job_count'], textfont = dict(size = 12, color = 'white'), marker = dict(color = px.colors.qualitative.Alphabet, opacity = 0.9, line_color = 'black', line_width = 1)) layout = go.Layout(title = {'text': "<b>Top 10 Data Science Countries</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>Countries</b>', tickmode = 'array'), yaxis = dict(title = '<b>Total</b>'), width = 900, height = 600) fig = go.Figure(data = data, layout = layout) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

从上图中,我们可以看出美国在数据科学方面的工作机会最多。现在我们来看看世界各地的薪水。大家可以继续运行代码,查看可视化结果。

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df = salaries df["company_country"] = coco.convert(names = salaries["company_location"], to = 'name_short') temp_df = df.groupby('company_country')['salary_in_usd'].sum().reset_index() temp_df['salary_scale'] = np.log10(df['salary_in_usd']) fig = px.choropleth(temp_df, locationmode = 'country names', locations = "company_country", color = "salary_scale", hover_name = "company_country", hover_data = temp_df[['salary_in_usd']], color_continuous_scale = 'Jet', ) fig.update_layout(title={'text':'<b>Salaries across the World</b>', 'xanchor': 'center','x':0.5}) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 平均工资(基于货币计算)

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df = salaries[['salary_currency','salary_in_usd']].groupby(['salary_currency'], as_index = False).mean().set_index('salary_currency').reset_index().sort_values('salary_in_usd', ascending = False) #Selecting top 14 df = df.iloc[:14] fig = px.bar(df, x = 'salary_currency', y = 'salary_in_usd', color = 'salary_currency', color_discrete_sequence = px.colors.qualitative.Safe, ) fig.update_layout(title={'text':'<b>Average salary as a function of currency</b>', 'xanchor': 'center','x':0.5}, xaxis_title = '<b>Currency</b>', yaxis_title = '<b>Mean Salary</b>') fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

人们以美元赚取的收入最多,其次是瑞士法郎和新加坡元。

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df = salaries[['company_country','salary_in_usd']].groupby(['company_country'], as_index = False).mean().set_index('company_country').reset_index().sort_values('salary_in_usd', ascending = False) #Selecting top 14 df = df.iloc[:14] fig = px.bar(df, x = 'company_country', y = 'salary_in_usd', color = 'company_country', color_discrete_sequence = px.colors.qualitative.Dark2, ) fig.update_layout(title = {'text': "<b>Average salary as a function of company location</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>Company Location</b>', tickmode = 'array'), yaxis = dict(title = '<b>Mean Salary</b>'), width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 数据科学工作经验水平分布

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job_exp = query(""" SELECT experience_level, Count(*) AS job_count FROM salaries GROUP BY experience_level ORDER BY job_count ASC """) data = go.Bar(x = job_exp['job_count'], y = job_exp['experience_level'], orientation = 'h', text = job_exp['job_count'], marker = dict(color = px.colors.qualitative.Alphabet, opacity = 0.9, line_color = 'white', line_width = 2)) layout = go.Layout(title = {'text': "<b>Jobs on Experience Levels</b>", 'x':0.5, 'xanchor':'center'}, xaxis = dict(title='<b>Total</b>', tickmode = 'array'), yaxis = dict(title='<b>Experience lvl</b>'), width = 900, height = 600) fig = go.Figure(data = data, layout = layout) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

从上图可以看出,大多数数据科学都是 高级水平专家级很少。

???? 数据科学工作就业类型分布

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job_emp = query(""" SELECT employment_type, COUNT(*) AS job_count FROM salaries GROUP BY employment_type ORDER BY job_count ASC """) data = go.Bar(x = job_emp['job_count'], y = job_emp['employment_type'], orientation ='h',text = job_emp['job_count'], textposition ='outside', marker = dict(color = px.colors.qualitative.Alphabet, opacity = 0.9, line_color = 'white', line_width = 2)) layout = go.Layout(title = {'text': "<b>Jobs on Employment Type</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title='<b>Total</b>', tickmode = 'array'), yaxis =dict(title='<b>Emp Type lvl</b>'), width = 900, height = 600) fig = go.Figure(data = data, layout = layout) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

从上图中,我们可以看到大多数数据科学家从事 全职工作而合同工和自由职业者 则较少

???? 数据科学工作数量趋势

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job_year = query(""" SELECT work_year, COUNT(*) AS 'job count' FROM salaries GROUP BY work_year ORDER BY 'job count' DESC """) data = go.Scatter(x = job_year['work_year'], y = job_year['job count'], marker = dict(size = 20, line_width = 1.5, line_color = 'white', color = px.colors.qualitative.Alphabet), line = dict(color = '#ED7D31', width = 4), mode = 'lines+markers') layout = go.Layout(title = {'text' : "<b><i>Data Science jobs Growth (2020 to 2022)</i></b>", 'x' : 0.5, 'xanchor' : 'center'}, xaxis = dict(title = '<b>Year</b>'), yaxis = dict(title = '<b>Jobs</b>'), width = 900, height = 600) fig = go.Figure(data = data, layout = layout) fig.update_xaxes(tickvals = ['2020','2021','2022']) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 数据科学工作薪水分布

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salary_usd = query(""" SELECT salary_in_usd FROM salaries """) import matplotlib.pyplot as plt plt.figure(figsize = (20, 8)) sns.set(rc = {'axes.facecolor' : '#f1e7d2', 'figure.facecolor' : '#f1e7d2'}) p = sns.histplot(salary_usd["salary_in_usd"], kde = True, alpha = 1, fill = True, edgecolor = 'black', linewidth = 1) p.axes.lines[0].set_color("orange") plt.title("Data Science Salary Distribution n", fontsize = 25) plt.xlabel("Salary", fontsize = 18) plt.ylabel("Count", fontsize = 18) plt.show()

???? 薪酬最高的 10 大数据科学工作

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salary_hi10 = query(""" SELECT job_title, MAX(salary_in_usd) AS salary FROM salaries GROUP BY salary ORDER BY salary DESC LIMIT 10 """) data = go.Bar(x = salary_hi10['salary'], y = salary_hi10['job_title'], orientation = 'h', text = salary_hi10['salary'], textposition = 'inside', insidetextanchor = 'middle', textfont = dict(size = 13, color = 'black'), marker = dict(color = px.colors.qualitative.Alphabet, opacity = 0.9, line_color = 'black', line_width = 1)) layout = go.Layout(title = {'text': "<b>Top 10 Highest paid Data Science Jobs</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>salary</b>', tickmode = 'array'), yaxis = dict(title = '<b>Job Title</b>'), width = 900, height = 600) fig = go.Figure(data = data, layout = layout) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

首席数据工程师 是数据科学领域的高薪工作。

???? 不同岗位平均薪资与排名

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salary_av10 = query(""" SELECT job_title, ROUND(AVG(salary_in_usd)) AS salary FROM salaries GROUP BY job_title ORDER BY salary DESC LIMIT 10 """) data = go.Bar(x = salary_av10['salary'], y = salary_av10['job_title'], orientation = 'h', text = salary_av10['salary'], textposition = 'inside', insidetextanchor = 'middle', textfont = dict(size = 13, color = 'white'), marker = dict(color = px.colors.qualitative.Alphabet, opacity = 0.9, line_color = 'white', line_width = 2)) layout = go.Layout(title = {'text': "<b>Top 10 Average paid Data Science Jobs</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>salary</b>', tickmode = 'array'), yaxis = dict(title = '<b>Job Title</b>'), width = 900, height = 600) fig = go.Figure(data = data, layout = layout) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 数据科学薪资趋势

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salary_year = query(""" SELECT ROUND(AVG(salary_in_usd)) AS salary, work_year AS year FROM salaries GROUP BY year ORDER BY salary DESC """) data = go.Scatter(x = salary_year['year'], y = salary_year['salary'], marker = dict(size = 20, line_width = 1.5, line_color = 'black', color = '#ED7D31'), line = dict(color = 'black', width = 4), mode = 'lines+markers') layout = go.Layout(title = {'text' : "<b>Data Science Salary Growth (2020 to 2022) </b>", 'x' : 0.5, 'xanchor' : 'center'}, xaxis = dict(title = '<b>Year</b>'), yaxis = dict(title = '<b>Salary</b>'), width = 900, height = 600) fig = go.Figure(data = data, layout = layout) fig.update_xaxes(tickvals = ['2020','2021','2022']) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 经验水平&薪资

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salary_exp = query(""" SELECT experience_level AS 'Experience Level', salary_in_usd AS Salary FROM salaries """) fig = px.violin(salary_exp, x = 'Experience Level', y = 'Salary', color = 'Experience Level', box = True) fig.update_layout(title = {'text': "<b>Salary on Experience Level</b>", 'xanchor': 'center','x':0.5}, xaxis = dict(title = '<b>Experience level</b>'), yaxis = dict(title = '<b>salary</b>', ticktext = [-300000, 0, 100000, 200000, 300000, 400000, 500000, 600000, 700000]), width = 900, height = 600) fig.update_layout(paper_bgcolor= '#f1e7d2', plot_bgcolor = '#f1e7d2', showlegend = False) fig.show()

???? 不同经验水平的薪资趋势

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tmp_df = salaries.groupby(['work_year', 'experience_level']).median() tmp_df.reset_index(inplace = True) fig = px.line(tmp_df, x='work_year', y='salary_in_usd', color='experience_level', symbol="experience_level") fig.update_layout(title = {'text': "<b>Median Salary Trend By Experience Level</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>Working Year</b>', tickvals = [2020, 2021, 2022], tickmode = 'array'), yaxis = dict(title = '<b>Salary</b>'), width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

观察 1. 在COVID-19大流行期间(2020 年至 2021 年),专家级员工薪资非常高,但是呈现部分下降趋势。 2. 2021年以后专家级和高级职称人员工资有所上涨。

???? 年份&薪资分布

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year_gp = salaries.groupby('work_year') hist_data = [year_gp.get_group(2020)['salary_in_usd'], year_gp.get_group(2021)['salary_in_usd'], year_gp.get_group(2022)['salary_in_usd']] group_labels = ['2020', '2021', '2022'] fig = ff.create_distplot(hist_data, group_labels, show_hist = False) fig.update_layout(title = {'text': "<b>Salary Distribution By Working Year</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>Salary</b>'), yaxis = dict(title = '<b>Kernel Density</b>'), width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 就业类型&薪资

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salary_emp = query(""" SELECT employment_type AS 'Employment Type', salary_in_usd AS Salary FROM salaries """) fig = px.box(salary_emp,x='Employment Type',y='Salary', color = 'Employment Type') fig.update_layout(title = {'text': "<b>Salary by Employment Type</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>Employment Type</b>'), yaxis = dict(title = '<b>Salary</b>'), width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 公司规模分布

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comp_size = query(""" SELECT company_size, COUNT(*) AS count FROM salaries GROUP BY company_size """) import plotly.graph_objects as go data = go.Pie(labels = comp_size['company_size'], values = comp_size['count'].values, hoverinfo = 'label', hole = 0.5, textfont_size = 16, textposition = 'auto') fig = go.Figure(data = data) fig.update_layout(title = {'text': "<b>Company Size</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b></b>'), yaxis = dict(title = '<b></b>'), width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 不同公司规模的经验水平比例

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df = salaries.groupby(['company_size', 'experience_level']).size() comp_s = np.round(df['Small'].values / df['Small'].values.sum(),2) comp_m = np.round(df['Medium'].values / df['Medium'].values.sum(),2) comp_l = np.round(df['Large'].values / df['Large'].values.sum(),2) fig = go.Figure() categories = ['Entry Level', 'Expert Level','Mid level','Senior Level'] fig.add_trace(go.Scatterpolar( r = comp_s, theta = categories, fill = 'toself', name = 'Company Size S')) fig.add_trace(go.Scatterpolar( r = comp_m, theta = categories, fill = 'toself', name = 'Company Size M')) fig.add_trace(go.Scatterpolar( r = comp_l, theta = categories, fill = 'toself', name = 'Company Size L')) fig.update_layout( polar = dict( radialaxis = dict(range = [0, 0.6])), showlegend = True, ) fig.update_layout(title = {'text': "<b>Proportion of Experience Level In Different Company Sizes</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b></b>'), yaxis = dict(title = '<b></b>'), width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 不同公司规模&工作薪资

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salary_size = query(""" SELECT company_size AS 'Company size', salary_in_usd AS Salary FROM salaries """) fig = px.box(salary_size, x='Company size', y = 'Salary', color = 'Company size') fig.update_layout(title = {'text': "<b>Salary by Company size</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>Company size</b>'), yaxis = dict(title = '<b>Salary</b>'), width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? WFH(远程办公)和 WFO 的比例

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rem_type = query(""" SELECT remote_ratio, COUNT(*) AS total FROM salaries GROUP BY remote_ratio """) data = go.Pie(labels = rem_type['remote_ratio'], values = rem_type['total'].values, hoverinfo = 'label', hole = 0.4, textfont_size = 18, textposition = 'auto') fig = go.Figure(data = data) fig.update_layout(title = {'text': "<b>Remote Ratio</b>", 'x':0.5, 'xanchor': 'center'}, width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 薪水受Remote Type影响程度

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salary_remote = query(""" SELECT remote_ratio AS 'Remote type', salary_in_usd AS Salary From salaries """) fig = px.box(salary_remote, x = 'Remote type', y = 'Salary', color = 'Remote type') fig.update_layout(title = {'text': "<b>Salary by Remote Type</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>Remote type</b>'), yaxis = dict(title = '<b>Salary</b>'), width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 不同经验水平&远程比率

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exp_remote = salaries.groupby(['experience_level', 'remote_ratio']).count() exp_remote.reset_index(inplace = True) fig = px.histogram(exp_remote, x = 'experience_level', y = 'work_year', color = 'remote_ratio', barmode = 'group', text_auto = True) fig.update_layout(title = {'text': "<b>Respondent Count In Different Experience Level Based on Remote Ratio</b>", 'x':0.5, 'xanchor': 'center'}, xaxis = dict(title = '<b>Experience Level</b>'), yaxis = dict(title = '<b>Number of Respondents</b>'), width = 900, height = 600) fig.update_layout(plot_bgcolor = '#f1e7d2', paper_bgcolor = '#f1e7d2') fig.show()

???? 分析结论

  • 数据科学领域Top3多的职位是数据科学家数据工程师数据分析师

  • 数据科学工作越来越受欢迎。员工比例从2020年的11.9%增加到2022年的52.4%

  • 美国是数据科学公司最多的国家。

  • 工资分布的IQR在62.7k和150k之间。

  • 在数据科学员工中,大多数是高级水平,而专家级则更少。

  • 大多数数据科学员工都是全职工作,很少有合同工自由职业者

  • 首席数据工程师是薪酬最高的数据科学工作。

  • 数据科学的最低工资(入门级经验)为4000美元,具有专家级经验的数据科学的最高工资为60万美元。

  • 公司构成:53.7%中型公司,32.6%大型公司,13.7%小型数据科学公司。

  • 工资也受公司规模影响,规模大的公司支付更高的薪水。

  • 62.8%的数据科学是完全远程工作,20.9%是非远程工作,16.3%部分远程工作。

  • 数据科学薪水随时间和经验积累而增长

参考资料

  • ???? Glassdoor
  • ???? pandasql
  • ???? 数据科学工作薪水数据集(Kaggle)
  • ???? 图解数据分析:从入门到精通系列教程:https://www.showmeai.tech/tutorials/33
  • ???? 编程语言速查表 | SQL 速查表:https://www.showmeai.tech/article-detail/99
  • ???? 数据科学工具库速查表 | Pandas 速查表:https://www.showmeai.tech/article-detail/101
  • ???? 数据科学工具库速查表 | Matplotlib 速查表:https://www.showmeai.tech/article-detail/103

推荐阅读

  • ???? 数据分析实战系列 :https://www.showmeai.tech/tutorials/40
  • ???? 机器学习数据分析实战系列:https://www.showmeai.tech/tutorials/41
  • ???? 深度学习数据分析实战系列:https://www.showmeai.tech/tutorials/42
  • ???? TensorFlow数据分析实战系列:https://www.showmeai.tech/tutorials/43
  • ???? PyTorch数据分析实战系列:https://www.showmeai.tech/tutorials/44
  • ???? NLP实战数据分析实战系列:https://www.showmeai.tech/tutorials/45
  • ???? CV实战数据分析实战系列:https://www.showmeai.tech/tutorials/46
  • ???? AI 面试题库系列:https://www.showmeai.tech/tutorials/48

最后

以上就是高高钢笔最近收集整理的关于数据科学家赚多少?数据全分析与可视化 ⛵???? 引言???? 数据说明???? 导入工具库???? 加载数据集???? 数据预处理???? 数据分析&可视化???? 分析结论参考资料推荐阅读的全部内容,更多相关数据科学家赚多少?数据全分析与可视化内容请搜索靠谱客的其他文章。

本图文内容来源于网友提供,作为学习参考使用,或来自网络收集整理,版权属于原作者所有。
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