In the
estimation method, first data is acquired, the first data being data related to a state of an apparatus and having a plurality of parameters including a specific parameter (S1). In the
estimation method, second data is generated by changing a value of the specific parameter in the acquired first data (S2). In the
estimation method, first estimation data is output by inputting the acquired first data to an estimation model that has been learned in such a manner that the above data is input and information indicating a change in the state of the apparatus is output (S3). In the estimation method, second estimation data is output by inputting the second data to the estimation model (S4). In the estimation method, an influence of the specific parameter on the state of the apparatus is estimated based on a relationship between the first estimation data and the second estimation data (S5).