Formulas > =FORECAST()

How To Use FORECAST() Function in Google Sheets


Calculates the expected y-value for a specified x based on a linear regression of a dataset.

Common questions about the FORECAST Formula:
- What is the syntax for the FORECAST Formula?
- How do I use the FORECAST Formula to predict future values?
- What factors are taken into account when using the FORECAST Formula?

How can the FORECAST formula be used appropriately?
- The FORECAST Formula can be used to make predictions about future values based on a set of data points. The formula takes into account the input range (the x-axis values) and the corresponding known output values, and uses linear regression to generate a forecast for the future.

How can the FORECAST formula be commonly mistyped?
- The most common mistake when typing the FORECAST Formula is missing the comma between the two input values. Another mistake is forgetting to enter the x-axis values as the first parameter, which will cause the formula to result in an error.

What are some common ways the FORECAST formula is used inappropriately?
- An inappropriate use of the FORECAST formula would be to apply it on data that is not based on a regression (linear or otherwise) relationship. In this case, the results of the formula will not be accurate and may even be misleading.

What are some common pitfalls when using the FORECAST Formula?
- A common pitfall when using the FORECAST Formula is forgetting to check that the data points used in the formula are accurately represented. This means that the resulting forecast may not be an accurate representation of the data. Additionally, if the data set does not adhere to a linear regression pattern, then the formula will not be able to generate an accurate forecast.

What are common mistakes when using the FORECAST Formula?
- Common mistakes when using the FORECAST Formula include forgetting to include the correct parameters in the formula, using inaccurate data points, or forgetting to account for the tendency for linear regression models to be sensitive to outliers.

What are common misconceptions people might have with the FORECAST Formula?
- A common misconception with the FORECAST Formula is that it can be used to predict outcomes even when the data set does not include a linear regression pattern. Additionally, some people may mistakenly believe that the formula can be used to predict future values with perfect accuracy, when in reality, the predictive power of the formula is limited to the accuracy of the data points used in the formula.

How To Actually Use FORECAST() in Sheets

FORECAST(x, data_y, data_x)

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