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
for either variation
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "for either variation" is correct and usable in written English.
It can be used when discussing options or alternatives in a context where two variations are being considered. Example: "The results were consistent for either variation of the experiment, indicating reliability in the findings."
✓ Grammatically correct
Science
News & Media
Wiki
Alternative expressions(3)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
4 human-written examples
In comparisons of IOP using repeated-measures ANOVA, no significant differences were identified between Groups A and B for either variation between subgroups (p = 0.80) or variation within subgroups (p = 0.72), while a significant difference was noted between Groups A and C for variation between subgroups (p < 0.05), but not for variation within subgroups (p = 0.24).
Science
Since the SEC's website provides us with positive hits for either variation of Baumann's name, it's unfortunate that the Department of Justice hasn't figured out that the "No D" and "D" are the same individual.
News & Media
No significant influence of country on age-related changes was observed for either variation or discordance (Table S2).
Science
For either variation of this method, the dependency between Y i and the clustering index can be tested with a chi-square test (with degrees of freedom = K - 1).
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
See (table) for variations between practitioners.
Science
It is firmly established that smoking cigarettes is associated with MS susceptibility but evidence suggests that this environmental factor alone is unlikely to account for either the global variation in prevalence.
Science
For a given unknown mismatch site existing in multiple tissues, a PSS was given to test its probability for either a genome variation (PSS = −1, with mismatch ratio ≥ 95% or between 40% ~ 60%) or an editing (PSS = 1, with mismatches ratios between 5% ~ 40% or between 60% ~ 95%) in each sample.
Science
Finally, the Ngram Viewer now makes it much easier to look for variations in capitalization styles.
News & Media
As it makes more sense in coding sequences to assume a specific pattern of among-site rate variation for either the first and second codon positions grouped together ("+Γ112" in Figure 2) or for each codon position separately ("+Γ123" in Figure 3), the corresponding models clearly outperform a model which imposes 1 general pattern of among-site rate variation for all sites.
Science
Repeats is needed for projects where either a time variation is being studied, or the total exposure time needed is longer than 2-3 hours.
Academia
Keep up either variation of this method for several weeks.
Wiki
Expert writing Tips
Best practice
Use "for either variation" when you need to clearly state that a condition or result applies to two distinct versions or forms of something.
Common error
Avoid using "for either variation" when there are more than two variations being considered. Instead, use phrases like "for any variation" or "for all variations" to accurately reflect the scope.
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "for either variation" functions as a prepositional phrase. It modifies a clause by specifying the scope of applicability to one of two possible variations. As Ludwig AI confirms, it is usable in written English, and the examples illustrate its role in scientific and general contexts.
Frequent in
Science
60%
News & Media
20%
Wiki
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "for either variation" is a prepositional phrase used to specify that a condition applies to two distinct versions or forms, as confirmed by Ludwig AI. It's most commonly found in scientific and news contexts. While grammatically correct, it is best used when discussing precisely two options, avoiding ambiguity when more variations exist. Alternatives like "for both variations" or "for any variation" may be more appropriate in other situations.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
for both variations
Specifies that the condition or result applies to both variations, rather than either one individually.
for any variation
Expands the scope to include all possible variations, not just the two specifically considered.
in either variant
Replaces "variation" with "variant", a synonym, maintaining the same meaning.
irrespective of the variation
Highlights that the outcome remains the same regardless of which variation is chosen.
regardless of the variation
Emphasizes that the outcome isn't affected by which specific variation is present.
in either form
Substitutes "variation" with "form", a synonym, preserving the original meaning but altering the wording.
under either version
Replaces "variation" with "version", suggesting different releases or adaptations.
across both variations
Focuses on encompassing both variations, rather than specifying either.
for each variant
Suggests the applicability extends separately to each variant.
in either modification
Replaces 'variation' with 'modification' to highlight changes.
FAQs
How can I use "for either variation" in a sentence?
Use "for either variation" to indicate that a statement applies to two specific versions or forms. For example, "The method is effective "for either variation" of the experiment."
What does "for either variation" mean?
It means that a particular condition, result, or characteristic is true or applicable in both of two specified versions or forms.
Is there a difference between "for either variation" and "for both variations"?
"For either variation" emphasizes that the statement applies individually to each of the two options, while "for both variations" focuses on encompassing both options together.
When is it appropriate to use "for any variation" instead of "for either variation"?
Use "for any variation" when you want to indicate that a statement applies to all possible versions or forms, not just two specific ones. "For either variation" is more restrictive.
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
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested