凡是搞计量经济的，都关注这个号了
稿件：econometrics666@126.com
所有计量经济圈方法论丛的code程序, 宏微观数据库和各种软件都放在社群里.欢迎到计量经济圈社群交流访问.
之前，我们引荐过①找合适的英文期刊发表的神器! 亲测太好用了！②神器! SSCI分区及影响因子查询, 还有国人发表比例，③学术神器Endnote的最详尽使用方法，④一数学神器诞生! 手写公式和符号, 竟免费转成LaTex，⑤让LaTeX排版流行起来, 让效率助你奔跑助你飞。
1. 统计计算器
欢迎使用免费统计计算器的4.0版！这些统计计算器可供科学家，研究人员，学生或任何其他好奇或感兴趣的团体免费使用。我们提供了这些免费的统计计算器，希望它们对科学和人类的进步能做出一些小的贡献。希望他们能让您的生活更轻松！
能够执行如下统计分析：方差分析、Sobel检验、β分布、β函数等等。
Analysis of Variance (ANOVA)
Analysis of Variance (ANOVA) Calculator - One-Way ANOVA from Summary Data
Analysis of Variance (ANOVA) Intraclass Correlation Calculator
F-value Calculator for an Analysis of Variance (ANOVA) Study
p-Value Calculator for an Analysis of Variance (ANOVA) Study
Beta Distribution
Cumulative Distribution Function (CDF) Calculator for the Beta Distribution
Probability Density Function (PDF) Calculator for the Beta Distribution
Beta Function
Beta Function Calculator
Lower Incomplete Beta Function Calculator
Regularized Lower Incomplete Beta Function Calculator
Binomial Distribution
Binomial Coefficient Calculator
Binomial Probability Calculator
Binomial Probability Confidence Interval Calculator
Cumulative Binomial Probability Calculator
Cumulative Distribution Function (CDF) Calculator for the Binomial Distribution
Expected Value Calculator for a Binomial Random Variable
Probability Mass Function (PMF) Calculator for the Binomial Distribution
Variance Calculator for a Binomial Random Variable
Chi-Square Distribution
Critical Chi-Square Value Calculator
Cumulative Distribution Function (CDF) Calculator for the Chi-Square Distribution
p-Value Calculator for a Chi-Square Test
Probability Density Function (PDF) Calculator for the Chi-Square Distribution
Confidence Intervals
Binomial Probability Confidence Interval Calculator
Confidence Interval Calculator for a Predicted Value of a Regression Equation
Confidence Interval Calculator for the Population Mean
Confidence Interval Calculator for the Population Mean (when population std dev is known)
f-square Effect Size Confidence Interval Calculator
Indirect Mediation Effect Confidence Interval Calculator
Poisson Confidence Interval Calculator
R-square Confidence Interval Calculator
Regression Coefficient Confidence Interval Calculator
Regression Intercept Confidence Interval Calculator
Contingency Tables
Fisher's Exact Test Calculator for a 2x2 Contingency Table
Fisher's Exact Test Calculator for a 2x3 Contingency Table
Fisher's Exact Test Calculator for a 3X3 Contingency Table
Correlations
Analysis of Variance (ANOVA) Intraclass Correlation Calculator
Correlation Coefficient Calculator (from a Covariance)
Covariance Calculator (from a Correlation Coefficient)
p-Value Calculator for Correlation Coefficients
Significance of the Difference between Two Correlations Calculator
t-Value Calculator for Correlation Coefficients
Covariances
Correlation Coefficient Calculator (from a Covariance)
Covariance Calculator (from a Correlation Coefficient)
Cumulative Distribution Functions (CDF)
Cumulative Distribution Function (CDF) Calculator for the Beta Distribution
Cumulative Distribution Function (CDF) Calculator for the Binomial Distribution
Cumulative Distribution Function (CDF) Calculator for the Chi-Square Distribution
Cumulative Distribution Function (CDF) Calculator for the F-Distribution
Cumulative Distribution Function (CDF) Calculator for the Noncentral F-Distribution
Cumulative Distribution Function (CDF) Calculator for the Noncentral t-Distribution
Cumulative Distribution Function (CDF) Calculator for the Normal Distribution
Cumulative Distribution Function (CDF) Calculator for the Poisson Distribution
Cumulative Distribution Function (CDF) Calculator for the Standard Normal Distribution
Cumulative Distribution Function (CDF) Calculator for the t-Distribution
Cumulative Distribution Function (CDF) Calculator for the Uniform Distribution
Effect Size
Effect Size (Cohen's d) Calculator for a Student t-Test
Effect Size Calculator for Hierarchical Multiple Regression
Effect Size Calculator for Multiple Regression
f-square Effect Size Confidence Interval Calculator
R-square Calculator (from an f-square Effect Size)
Error Function
Complementary Error Function Calculator
Error Function Calculator
Inverse Complementary Error Function Calculator
Inverse Error Function Calculator
Event Occurrence
Complementary Probability Calculator
Conditional Probability Calculator
Joint Probability Calculator
Union Probability Calculator
F-Distribution
Critical F-value Calculator
Cumulative Distribution Function (CDF) Calculator for the F-Distribution
Cumulative Distribution Function (CDF) Calculator for the Noncentral F-Distribution
Expected Value Calculator for an F-Distribution Random Variable
F-Value and p-Value Calculator for Multiple Regression
F-value Calculator for an Analysis of Variance (ANOVA) Study
F-Value Calculator for Hierarchical Multiple Regression
p-Value Calculator for an F-Test
Probability Density Function (PDF) Calculator for the F-Distribution
Variance Calculator for an F-Distribution Random Variable
Gamma Function
Gamma Function Calculator
Lower Incomplete Gamma Function Calculator
Regularized Lower Incomplete Gamma Function Calculator
Regularized Upper Incomplete Gamma Function Calculator
Upper Incomplete Gamma Function Calculator
Hierarchical Regression
A-priori Sample Size Calculator for Hierarchical Multiple Regression
Beta (Type II Error Rate) Calculator for Hierarchical Multiple Regression
Effect Size Calculator for Hierarchical Multiple Regression
F-Value Calculator for Hierarchical Multiple Regression
Post-hoc Statistical Power Calculator for Hierarchical Multiple Regression
Mediation Models
Indirect Effect Calculator for Mediation Models
Indirect Mediation Effect Confidence Interval Calculator
Sobel Test Calculator for the Significance of Mediation
Total Effect Calculator for Mediation Models
Variance Calculator for an Indirect Mediation Effect
Noncentral Probability Distributions
Cumulative Distribution Function (CDF) Calculator for the Noncentral F-Distribution
Cumulative Distribution Function (CDF) Calculator for the Noncentral t-Distribution
Probability Density Function (PDF) Calculator for the Noncentral t-Distribution
Normal Distribution
Confidence Interval Calculator for the Population Mean
Confidence Interval Calculator for the Population Mean (when population std dev is known)
Cumulative Area Under the Standard Normal Curve Calculator
Cumulative Distribution Function (CDF) Calculator for the Normal Distribution
Cumulative Distribution Function (CDF) Calculator for the Standard Normal Distribution
One-Tailed Area Under the Standard Normal Distribution Calculator
Probability Density Function (PDF) Calculator for the Normal Distribution
Probability Density Function (PDF) Calculator for the Standard Normal Distribution
Standard Normal Distribution Z-Score Calculator
Two-Tailed Area Under the Standard Normal Distribution Calculator
Z-score Calculator
Poisson Distribution
Cumulative Distribution Function (CDF) Calculator for the Poisson Distribution
Cumulative Poisson Probability Calculator
Poisson Confidence Interval Calculator
Poisson Probability Calculator
Probability Mass Function (PMF) Calculator for the Poisson Distribution
Probability (p-Values)
Binomial Probability Calculator
Complementary Probability Calculator
Conditional Probability Calculator
Cumulative Area Under the Standard Normal Curve Calculator
Cumulative Binomial Probability Calculator
Cumulative Poisson Probability Calculator
F-Value and p-Value Calculator for Multiple Regression
Fisher's Exact Test Calculator for a 2x2 Contingency Table
Fisher's Exact Test Calculator for a 2x3 Contingency Table
Fisher's Exact Test Calculator for a 3X3 Contingency Table
Interval Probability Calculator for the Uniform Distribution
Joint Probability Calculator
One-Tailed Area Under the Standard Normal Distribution Calculator
p-Value Calculator for a Chi-Square Test
p-Value Calculator for a Student t-Test
p-Value Calculator for an Analysis of Variance (ANOVA) Study
p-Value Calculator for an F-Test
p-Value Calculator for Correlation Coefficients
Poisson Probability Calculator
Significance of the Difference between Two Correlations Calculator
Significance of the Difference between Two Slopes Calculator
Sobel Test Calculator for the Significance of Mediation
Two-Tailed Area Under the Standard Normal Distribution Calculator
Union Probability Calculator
Probability Density Functions (PDF)
Probability Density Function (PDF) Calculator for the Beta Distribution
Probability Density Function (PDF) Calculator for the Chi-Square Distribution
Probability Density Function (PDF) Calculator for the F-Distribution
Probability Density Function (PDF) Calculator for the Noncentral t-Distribution
Probability Density Function (PDF) Calculator for the Normal Distribution
Probability Density Function (PDF) Calculator for the Standard Normal Distribution
Probability Density Function (PDF) Calculator for the t-Distribution
Probability Density Function (PDF) Calculator for the Uniform Distribution
Probability Mass Functions (PMF)
Probability Mass Function (PMF) Calculator for the Binomial Distribution
Probability Mass Function (PMF) Calculator for the Poisson Distribution
Regression
A-priori Sample Size Calculator for Multiple Regression
Adjusted R-square Calculator (Population R-square)
Beta (Type II Error Rate) Calculator for Multiple Regression
Confidence Interval Calculator for a Predicted Value of a Regression Equation
Critical F-value Calculator
Effect Size Calculator for Multiple Regression
f-square Effect Size Confidence Interval Calculator
F-Value and p-Value Calculator for Multiple Regression
Post-hoc Statistical Power Calculator for Multiple Regression
R-square Calculator (from an f-square Effect Size)
R-square Confidence Interval Calculator
Regression Coefficient Confidence Interval Calculator
Regression Intercept Confidence Interval Calculator
Significance of the Difference between Two Slopes Calculator
Sample Size
A-priori Sample Size Calculator for Hierarchical Multiple Regression
A-priori Sample Size Calculator for Multiple Regression
A-priori Sample Size Calculator for Structural Equation Models
A-priori Sample Size Calculator for Student t-Tests
Statistical Power
Post-hoc Statistical Power Calculator for a Student t-Test
Post-hoc Statistical Power Calculator for Hierarchical Multiple Regression
Post-hoc Statistical Power Calculator for Multiple Regression
t-Distribution
A-priori Sample Size Calculator for Student t-Tests
Beta (Type II Error Rate) Calculator for a Student t-Test
Confidence Interval Calculator for the Population Mean
Cumulative Distribution Function (CDF) Calculator for the Noncentral t-Distribution
Cumulative Distribution Function (CDF) Calculator for the t-Distribution
Effect Size (Cohen's d) Calculator for a Student t-Test
One-Sample t-Test Calculator
p-Value Calculator for a Student t-Test
Post-hoc Statistical Power Calculator for a Student t-Test
Probability Density Function (PDF) Calculator for the Noncentral t-Distribution
Probability Density Function (PDF) Calculator for the t-Distribution
Student t-Value Calculator
t-Statistic and Degrees of Freedom Calculator
t-Value Calculator for Correlation Coefficients
Uniform Distribution
Cumulative Distribution Function (CDF) Calculator for the Uniform Distribution
Interval Probability Calculator for the Uniform Distribution
Probability Density Function (PDF) Calculator for the Uniform Distribution
Miscellaneous
Adjusted R-square Calculator (Population R-square)
Coefficient of Variation Calculator
Factorial Calculator
Z-score Calculator
2. 金融计算器
欢迎使用免费金融计算器3.0版！这些计算器可以计算与财务，会计，投资和业务相关的许多价值，并且完全免费供所有人使用。向你提供这些服务，希望它们能以某种较小的方式为业务发展和高质量的财务决策做出贡献。希望你觉得它们有用！
能够执行如下金融计算：债券价值、债券收益率等等。
Accounts Payable and Accounts Receivable
Accounts Payable to Average Daily Purchases Calculator
Accounts Receivable by Sales Calculator
Accounts Receivable by Total Assets Calculator
Accounts Receivable Turnover Calculator
Average Accounts Receivable Calculator
Average Collection Period Calculator
Bad Debt to Accounts Receivable Calculator
Cost of a Discount Calculator
Investment in Accounts Receivable Calculator
Return on Freed Cash Calculator
Sales to Accounts Payable Ratio Calculator
Asset Utilization (Turnover)
Fixed Asset Turnover Calculator
Sales to Accounts Receivable Calculator
Sales to Cash Calculator
Sales to Inventory Calculator
Sales to Working Capital Calculator
Total Asset Turnover Calculator
Bonds
Bond Valuation Calculator
Bond Yield to Maturity (YTM) Calculator
Current Yield of a Bond (Simple Yield) Calculator
Yield on a Perpetual Bond Calculator
Cash Flows and Cash Ratios
Cash and Cash Equivalents to Working Capital Calculator
Cash and Marketable Securities to Total Current Assets Calculator
Cash and Marketable Securities to Total Current Liabilities Calculator
Cash Flow from Operations (CFO) Per Share Calculator
Cash Flow from Operations (CFO) to Maturing Debt Ratio Calculator
Cash Flow from Operations (CFO) to Net Income Ratio Calculator
Cash Flow from Operations (CFO) to Sales Ratio Calculator
Cash Flow to Long-Term Debt Calculator
Cash Flow to Total Debt Calculator
Optimal Cash Level Calculator (Baumol's Model)
Optimal Cash Level Calculator (Miller-Orr Model)
Corporate Credit
Accounts Payable to Average Daily Purchases Calculator
Acid-Test (Quick) Ratio Calculator
Bad Debt to Accounts Receivable Calculator
Bad Debt to Sales Calculator
Cash and Marketable Securities to Total Current Liabilities Calculator
Cash Flow from Operations (CFO) to Maturing Debt Ratio Calculator
Cash Flow from Operations (CFO) to Sales Ratio Calculator
Cash Flow to Total Debt Calculator
Cost of a Discount Calculator
Investment in Accounts Receivable Calculator
Return on Freed Cash Calculator
Depreciation
Actual Cash Value Calculator
Straight-Line Depreciation Calculator
Units-of-Production (UOP) Depreciation Calculator
Insurance
Actual Cash Value Calculator
Insurance Reimbursement Calculator
Life Insurance Adequacy Calculator
Inventory and Supply Chain Management
Economic Order Quantity (EOQ) Calculator
Inventory Reorder Point Calculator
Sales to Accounts Payable Ratio Calculator
Sales to Inventory Calculator
Investing and Trading
Absolute Breadth Index (ABI) Calculator
Alpha Value Calculator
Arbitrage Profit Calculator for Currency Exchanges
Arbitrage Profit Calculator for Stocks or Commodities
Beta Value Calculator
Black-Scholes Calculator for the Price of a Put Option
Black-Scholes Calculator for the Value of a Call Option
Bond Valuation Calculator
Bond Yield to Maturity (YTM) Calculator
Book Value Per Share Calculator for Common Stock
Book Value Per Share Calculator for Preferred Stock
Capitalization Rate Calculator
Current Yield of a Bond (Simple Yield) Calculator
Expected Stock Performance Calculator
Gross Income Multiplier (GIM) Calculator
Present Value Interest Factor (PVIF) Calculator
Present Value Interest Factor of an Annuity (PVIFA) Calculator
Stock Risk Premium Calculator
Yield on a Perpetual Bond Calculator
Liquidity
Accounts Receivable by Sales Calculator
Accounts Receivable by Total Assets Calculator
Accounts Receivable Turnover Calculator
Acid-Test (Quick) Ratio Calculator
Average Collection Period Calculator
Cash and Cash Equivalents to Working Capital Calculator
Sales to Cash Calculator
Sales to Working Capital Calculator
Loans
Annual Percentage Rate (APR) Calculator for a Single-Payment Loan
Annual Percentage Rate (APR) Calculator for an Installment Loan
Loan Amortization Schedule Calculator
Loan Payment Calculator
Total Cost of a Loan Calculator
Total Loan Interest Calculator
Options
Black-Scholes Calculator for the Price of a Put Option
Black-Scholes Calculator for the Value of a Call Option
Value of a Call Option at Maturity Calculator
Value of a Put Option at Maturity Calculator
Overhead
Applied (Predetermined) Overhead Rate Calculator
Factory Overhead to Sales Calculator
Profitability
Break-Even Point Calculator
Cash Break-Even Point Calculator
Margin of Safety Calculator
Real Estate
Capitalization Rate Calculator
Gross Income Multiplier (GIM) Calculator
Net Income Multiplier (NIM) Calculator
Stocks
Absolute Breadth Index (ABI) Calculator
Alpha Value Calculator
Arbitrage Profit Calculator for Stocks or Commodities
Beta Value Calculator
Book Value Per Share Calculator for Common Stock
Book Value Per Share Calculator for Preferred Stock
Cash Flow from Operations (CFO) Per Share Calculator
Expected Stock Performance Calculator
Stock Risk Premium Calculator
3. 词云分析机
这个免费的工具将允许你为几乎所有文本创建一个豪华的词云。词云（或标签云）是一种高度复杂但易于理解的方法，用于汇总和可视化大量文本的内容。词云描述了出现在文本主体中的最常见术语，每个词的相对频率由其在云中的大小指示。
要创建云，只需在下面的框中键入或粘贴一些文本，然后单击“绘制云！”。按钮。你还可以通过在“词云选项”窗格中选择不同的选项来自定义云的外观。
4. 情感分析机
这个免费工具可让你对几乎所有用英语写的文本进行情感分析。系统计算情感分数，该分数反映你输入文本的总体情感，语调或情感感觉。情绪分数介于-100到+100之间，其中-100表示非常消极或认真的语气，而+100表示非常积极或热情的语气。
要执行情感分析，只需在下面的框中键入或粘贴一些文本，然后单击“分析文本！”。
5. 进入链接
下面这些短链接文章属于合集，可以收藏起来阅读，不然以后都找不到了。
2.5年，计量经济圈近1000篇不重类计量文章，
可直接在公众号菜单栏搜索任何计量相关问题,
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