The CORREL function in Excel is a statistical function that returns the correlation coefficient between two sets of data points. A correlation coefficient is a number between -1 and 1 that measures the strength of the linear relationship between two variables.
- Coefficient of -1 indicates a perfect negative linear relationship between two variables.
- A correlation coefficient of 0 indicates no linear relationship between two variables.
- Correlation coefficient of 1 indicates a perfect positive linear relationship.
The CORREL function can be used to measure the strength of the relationship between two sets of data points. This can be useful for predicting the behavior of one variable based on the value of another variable. For example, a correlation coefficient of 0.7 between temperature and air pressure might indicate that the air pressure also rises when the temperature rises.
To use the function, user must specify two sets of data points as arguments. The function will then return the correlation coefficient between the two sets of data points. The data points can be entered as numbers, a range of cells, or an array. The CORREL function is not case-sensitive and ignores the text and logical values.
