如何用统一替换所有非NAN值?

我有一个3500 * 7500矩阵，其中有NAN和其他值.我想基本上将所有非NAN值都转换为1.

I have a 3500*7500 matrix where I have NAN and other values. I want to basically convert all non-NAN values with 1.

我可以使用〜isnan(mat)将NAN转换为0，将非NAN转换为1.

I can use ~isnan(mat) to convert NAN to 0 and non-NAN to 1.

是否存在类似的功能，可以将非NAN值转换为1，并保持NAN不变.

Is there a similar function to convert non-NAN values with 1 and leaving NANs as they are.