Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
the model classes were
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "the model classes were" is correct and usable in written English.
You can use it when discussing or describing specific model classes in a programming, statistical, or theoretical context. Example: "In our analysis, the model classes were defined based on the parameters we selected for the study."
✓ Grammatically correct
Science
News & Media
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
The model class is implemented in a visualization tool that allows variation of the model parameters and visualization of the resulting model for the given set of parameters.
A potentially limiting underlying assumption of this model class is that the explanatory variables have a proportional effect on the hazard function.
Once exploration of the data has revealed patterns to be captured by the model, candidate model classes are assessed for their suitability of capturing these features of the data.
The most probable model class is selected as the one that maximizes Pr (M i | D ) over i.
The prior probability of each model class is set to 1 / μ.
As most existing ANN design techniques require the ANN model class to be known before the training process, a technique that can automatically select an "optimal" ANN model class is essential.
Science
Some of the girls from your Business Models class were hanging out at the park and took the baby along so you could rest.
News & Media
He also was a four‐time winner here, was pinned second in the model class and was out of the ribbons once.
News & Media
It's Saturday afternoon, and modelling class is in session.
News & Media
In survival prediction model, the two classes were high-risk group and low-risk group.
Science
In subtype classification model, the two classes were activated B-cell-like subtype and germinal center B-cell-like subtype.
Science
Expert writing Tips
Best practice
When using "the model classes were", ensure the context clearly defines what constitutes a 'class' in your specific modeling scenario. Be explicit about the criteria used for classification.
Common error
Avoid defining model classes that are not mutually exclusive. Ensure each model fits distinctly into only one class to maintain clarity and avoid ambiguity in your analysis.
Source & Trust
72%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "the model classes were" functions as a statement of fact, introducing or referring to previously defined categories of models. Given that Ludwig's AI indicates the phrase as usable, its presence often signals an enumeration or discussion of specific model groupings.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, "the model classes were" is a grammatically sound phrase used to introduce or refer to classifications of models. According to Ludwig, the phrase is usable in written English, particularly in technical and academic settings. The phrase’s purpose is to provide structure and clarity in discussions involving multiple model types, ensuring that the audience understands the specific groupings being analyzed. While its frequency is currently categorized as 'Missing' due to the limited number of exact matches in the provided data, alternative phrases such as "the model categories were" or "the model types were" can offer similar meaning with slight variations. Remember to clearly define each model class to avoid ambiguity and ensure mutual exclusivity in your classifications.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
The model categories were
Replaces "classes" with "categories", offering a slightly broader classification term.
The model types were
Substitutes "classes" with "types", indicating a distinction based on different kinds of models.
The different model classes
Adds the adjective "different" to emphasize variety among classes.
The model groups were
Uses "groups" instead of "classes", suggesting a collection of models sharing common characteristics.
Various model classes
Using "various" instead of "the" provides a sense of generality.
The model families were
Employs "families" to convey a hierarchical relationship among the models.
The model sets were
Replaces "classes" with "sets", indicating a collection of distinct models.
The models' classifications were
Restructures the phrase to emphasize the act of classifying the models.
Models were categorized as
Changes the phrase to a more active voice, focusing on the categorization process.
Models were grouped into
Similar to the previous one, emphasizes the action of grouping.
FAQs
How can I use "the model classes were" in a sentence?
You can use "the model classes were" to describe groupings of models based on shared characteristics. For example: "In this study, the model classes were based on different parameter settings".
What are some alternatives to "the model classes were"?
Alternatives include "the model categories were", "the model types were", or "the models' classifications were". Each offers a slightly different nuance in meaning.
How do I choose the right term: model classes, model categories, or model types?
Choose based on the precision needed. "Classes" implies a structured hierarchy, "categories" is more general, and "types" suggests distinct kinds. Consider what "the model categories were" if you wish to be more general.
Is "the model classes were" formal enough for academic writing?
Yes, "the model classes were" is suitable for academic and technical writing. Ensure that your definitions of each class are clear and well-supported by evidence.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
72%
Authority and reliability
4.1/5
Expert rating
Real-world application tested