Regression Analysis

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Regression Analysis

Produces the regression analysis of a data set

Choose Data - Statistics - Regression

Note.png For more information on regression analysis, refer to the corresponding Wikipedia article.

Veri

Girdi Aralığı: Analiz edilecek veri aralığının kaynağı.

Sonuç: Sonucun gösterileceği aralığın sol üst hücresinin kaynağı.

Grupla

Girdi verisinin sütunlarsatırlar mı içerdiğini seçin.

Output Regression Type

Set the regression type. Three types are available:

  • Linear Regression: find a straight line in the form of y = a.x + b, where a is the slope and b is the intercept that best fits the data.
  • Logarithmic regression: find a logarithmic curve in the form of y = a.ln(x) + b, where a is the slope, b is the intercept and ln(x) is the natural logarithm of x, that best fits the data.
  • Power regression: Find a power curve in the form of y = a.x^b, where a is the coefficient, b is the power that best fits the data.

Örnek

The following table has samples of a physical phenomenon taken in 1 second interval.

A B
1 Time Measurement
2 1 2.7
3 2 4.0
4 3 4.4
5 4 7.1
6 5 4.9
7 6 3.6
8 7 4.0
9 8 0.6
10 9 1.0
11 10 4.3

The results of the three types of regression analysis of the measurements in the table above are shown below.

Regression
Regression Model Doğrusal Logarithmic Kuvvet
R^2 0.1243901235 0.036283506 0.0884254697
Standart Hata 1.8692568609 1.9610483597 0.7746321053
Kapsam -0.2193939394 -0.4894112008 4.812672931
Intercept 4.8666666667 4.3992268695 -0.3103085297
1 4.6472727273 4.3992268695 4.812672931
2 4.4278787879 4.0599928755 3.8812728356
3 4.2084848485 3.8615537101 3.4224061924
4 3.9890909091 3.7207588815 3.1301272785
5 3.7696969697 3.6115499281 2.9207204651
6 3.5503030303 3.5223197161 2.7600654308
7 3.3309090909 3.4468766468 2.6311476385
8 3.1115151515 3.3815248876 2.5243514679
9 2.8921212121 3.3238805506 2.4337544465
10 2.6727272727 3.2723159341 2.3554713075

Related Topics

Sampling, Descriptive Statistics, Analysis of Variance (ANOVA), Correlation, Covariance, Exponential Smoothing, Moving Average, t-test, F-test, Z-test, Chi-square test.