How can i use regression for this script?

https://www.mathworks.com/help/nnet/ug/construct-deep-network-using-autoencoders.html?s_tid=srchtitle

I used this example for classification and worked perfectly.How can i use this script for regression purpose.I know i need to replace softmax funtion with regression layer.But nothing is working for me.

https://kr.mathworks.com/help/nnet/ref/regressionoutputlayer-class.html