Correlation
Calculates the correlation of two sets of numeric data.
To access this command...
Choose Data - Statistics - Correlation
The correlation coefficient (a value between -1 and +1) means how strongly two variables are related to each other. You can use the CORREL function or the Data Statistics to find the correlation coefficient between two variables.
A correlation coefficient of +1 indicates a perfect positive correlation.
A correlation coefficient of -1 indicates a perfect negative correlation
For more information on statistical correlation, refer to the corresponding Wikipedia article.
Data
Input Range: The reference of the range of the data to analyse.
Results to: The reference of the top left cell of the range where the results will be displayed.
Grouped By
Select whether the input data has columns or rows layout.
Example
The following data will be used as example
| | A | B | C | | | ---- | ----- | ------- | ------- | | 1 | Maths | Physics | Biology | | 2 | 47 | 67 | 33 | | 3 | 36 | 68 | 42 | | 4 | 40 | 65 | 44 | | 5 | 39 | 64 | 60 | | 6 | | 38 | 43 | | 7 | 47 | 84 | 62 | | 8 | 29 | 80 | 51 | | 9 | 27 | 49 | 40 | | 10 | 57 | 49 | 12 | | 11 | 56 | 33 | 60 | | 12 | 57 | | | | 13 | 26 | | |
The following table displays the results of the correlation of the sample data above.
| Correlations | Column 1 | Column 2 | Column 3 |
|---|---|---|---|
| Column 1 | 1 | ||
| Column 2 | -0.4029254917 | 1 | |
| Column 3 | -0.2107642836 | 0.2309714048 | 1 |