where is regressionLayer in 2024a deep learningtoolbox

请问在2024a版本中，深度网络设计器的regressionLayer等以前常用的输出层到哪里去了。如果没有的话，相关功能应该如何实现。

Answer 1

[Abhinav Aravindan]

It is my understanding that you are having difficulty in finding the “regressionLayer” in the Deep Network Designer of MATLAB R2024a which is used to compute the half-mean-squared-error loss. “regressionLayer” is no longer recommended to use in R2024a. The "trainnet" function is recommended to be used instead.

https://www.mathworks.com/help/deeplearning/ref/regressionlayer.html#mw_312041ea-fa24-409f-a535-d31cc491f09f:~:text=Starting%20in%20R2024a%2C%20RegressionOutputLayer%20objects%20are%20not%20recommended%2C%20use%20the%20trainnet%20and%20set%20the%20loss%20function%20to%20%22mse%22%20instead

For implementing “regressionLayer” using the Deep Network Designer, after designing the network in the App, the network can be exported to the workspace and the “trainnet” function with the “lossFcn” parameter set to “mse” can be utilized as follows where "net" is the exported network from Deep Network Designer App.

netTrained = trainnet(features,targets,net,"mse",options); 

Please refer to the documentation for more detail.

https://www.mathworks.com/help/deeplearning/ref/trainnet.html

https://www.mathworks.com/help/deeplearning/gs/get-started-with-deep-network-designer.html