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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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by ratio

Grammar usage guide and real-world examples

USAGE SUMMARY

"by ratio" is a correct and usable phrase in written English.
You can use it when referring to an equation or proportion between two or more variables. For example, "The ratio of blue to red flowers was 2:1, meaning there were twice as many blue flowers as red ones."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

So, by ratio test ∑ p n is convergent.

Determination of depth of maximum by ratio of amplitude at different distances from the shower axis.

The multi-objective optimization by ratio analysis (MOORA) technique was introduced by Brauers and Zavadskas (2006).

Stable isotope dilution is a robust technique of measurement by ratio [39].

Glass fibers were added by ratio 0.7% to improve concrete ductility.

The best quantity of lime and RHA in this study, is obtained by ratio 1 1 of lime and RHA.

By ratio method and the shortest road distance, accessibility in health-care facility can be quantified and mapped.

Effective Rv was calculated by ratio of pulmonary artery pressure (PPA) by pulmonary artery flow (V′PA).

The humification degree and characteristics of SOM could be evaluated by ratio of alkyl-C/O-alkyl-C and aromaticity.

The rate of infiltration then counted by ratio of water level decrease and time elapsed to infiltrate the total water (NRSHC 2002).

After measuring the area where bones were formed by randomly designating 4 locations from one specimen, an average was calculated and shown by ratio.

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Expert writing Tips

Best practice

When using "by ratio", ensure the quantities being compared are clearly defined to avoid ambiguity. For example, specify "by the ratio of A to B".

Common error

Avoid using "by ratio" without explicitly stating what is being compared. Instead of saying "increased by ratio", specify "increased by a ratio of 2:1 relative to the previous value".

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "by ratio" primarily functions as a prepositional phrase, often used adverbially to specify how a quantity is determined or compared. As Ludwig AI confirms, it is grammatically sound. Examples show its use in describing calculations and assessments.

Expression frequency: Very common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Encyclopedias

0%

Ludwig's WRAP-UP

In summary, "by ratio" is a grammatically correct and frequently used prepositional phrase, particularly in scientific and academic writing. As Ludwig AI validates, it serves to specify how a comparison or assessment is made between two quantities. The primary context of usage is within the science domain, with various authoritative sources employing this phrase. When using "by ratio", ensure clarity by explicitly defining the elements being compared. While alternatives like "in proportion" or "relative to" exist, the specific context should guide the choice for optimal precision.

FAQs

How can I use "by ratio" in a sentence?

You can use "by ratio" to indicate a comparison between two quantities, such as "The drug's effectiveness was determined "by ratio" of successful outcomes to total participants".

What are some alternatives to using "by ratio"?

Alternatives include phrases like "in proportion", "relative to", or "compared with", depending on the specific context and nuance you want to convey.

Is it better to say "the increase by ratio" or "the increase in ratio"?

It is generally clearer and more grammatically sound to say "the increase in ratio". "By ratio" is typically used to describe how something is determined or calculated, not to describe the increase itself.

How does "by ratio" differ from "as a percentage of"?

"By ratio" expresses a direct proportional relationship, while "as a percentage of" expresses a part of a whole in terms of 100. Use ""by ratio"" when showing the direct scale difference between quantities, and "as a percentage of" when highlighting the part-to-whole relationship.

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Most frequent sentences: