The phrase "altered the model" is correct and usable in written English.
You can use it when discussing changes made to a specific model, whether in a scientific, mathematical, or conceptual context.
Example: "The researchers altered the model to better fit the observed data."
Alternatives: "modified the model" or "adjusted the model".
When follicular growth parameters are altered, the model predicts that cows will exhibit either two or three follicular waves per cycle, as seen in practice.
We slightly altered the model from the recent publication, explicitly including the carrying capacity in the resource-limit equation (Equation 1 below).
Using this variable altered the model for the Pilbara, so that rainfall two months before was not predictive of human cases, but rainfall one month before was.
Variables associated with government scheme membership in univariate analysis (p<0.1) were included in the initial multivariate model in addition to important potential confounders such as gender, and retained if their removal markedly altered the model fit.
Mauchley et al examined the clinical utility of routine preoperative computed tomography (CT) scans and their cost-effectiveness in the treatment of patients with colon cancer; CT scans provided information that was used in treatment planning (33% of patients), and sometimes altered the model of treatment (16% of patients).
In the model, the basal inhibitor acts to increase the sensitivity to auxin by reducing the value of T. We have altered the model visualization to show metamers in which the basal inhibitory cue is active and rewritten the text explaining the model.
One advantage of our modelling technique was that we were able to alter the model as required and in ways not possible with a real bat to ask specific 'what if' questions.
The US blog Jezebel criticised the decision of Roitfeld and photographer Steven Klein to alter the model's skin colour, accusing them of cultural insensitivity.
It would be great, says Johnson, if games companies opened up "the underlying architecture of these games and let educators load it with real historical information, or alter the model slightly, so you have different theories of how cities work".
Increasing the number of bootstrap replications did not alter the model significantly.
