Скачать или смотреть How to Display a Fit Equation on a Plot in MATLAB in One Line

Learn how to effectively display curve fit equations on your MATLAB plots without breaking across multiple lines. This guide provides an easy solution for a common plotting issue.
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Displaying a Fit Equation on a Plot in MATLAB in One Line

When creating visualizations in MATLAB, it is often helpful to display the equations of fitted curves directly on the plot. However, you may encounter challenges when you try to display these equations, particularly if they are split across multiple lines due to whitespace or formatting issues.

In this post, we will address a common problem: How to display your curve fitting equation in a single line on a MATLAB plot. We’ll guide you through the solution step-by-step to ensure clear understanding and effective implementation.

The Problem

You may have been using the following code to fit a curve to your data and plot it as follows:

[[See Video to Reveal this Text or Code Snippet]]

The issue lies in the line that creates the txt variable. If you try to display the equation using this method, there’s a high chance that it won’t appear correctly aligned on the plot, as it is likely to be split into multiple lines.

The Solution

To display the equation in one continuous line, we can modify the way we construct the string that contains the equation. Instead of creating a cell array with curly braces and risking line breaks, we’ll use the strcat function, which concatenates strings without unwanted spaces or splits.

Here’s the Corrected Code:

Replace your previous txt declaration with the following line:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code:

strcat Function: This function joins strings together without adding extra spaces that may cause line breaks during display.

String Construction: By enclosing each part of the equation in square brackets and concatenating them, you ensure that your equation stays in one line.

Putting It All Together:

Here is the complete code snippet with the necessary changes:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Now, with the correct use of the strcat function, you can easily display your fitted equation on your MATLAB plot in a single line. This method not only solves the formatting issue but also enhances the visual presentation of your data analysis.

By applying this straightforward fix, you can improve the readability and professionalism of your MATLAB plots. If you have any other questions or need further assistance with MATLAB, feel free to ask!