You have a model that predictsa result. You also have data that shows an actual result chosse a symbol for the actual data (eg circles) and plot it. Choose a different symbol (eg squares) for the predicted data and plot it on the same plot. Observe errors and consider whether the predictive model needs improvement or not based on the fit.
Sonalika Sonal, If you want me to know you answered, just use the "mention" option. Also, what is a "non-linear kinetic model: function/equation or differential equation? Or do you mean fitting the model to the data? One can guess for a long time.
Mirosław Grzesik Sir I have to fit my data set for non-linear kinetic equations (especially for column study i.e. Thomas Model, Bohart-Adams model etc).