The phrase "a useful complement for" is correct and usable in written English.
It can be used when describing something that enhances or adds value to another item or concept.
Example: "This software serves as a useful complement for our existing tools, improving overall efficiency."
Alternatives: "a valuable addition to" or "a beneficial enhancement for".
From the results it was concluded that such a monitoring system would be a useful complement for tritium analytics devices if well designed in terms of memory effect suppression.
On the contrary, individual savings accounts, say, might be a useful complement for government minimums, while a range of health insurance "products" might well be offered to Medicare participants (who, of course, already contribute to a share of the outlays).
The study of religion is a useful complement for students primarily interested in other fields such sociology, political sciences, public policy, education, history, art history, law, cultural anthropology, or medicine.
This type of analysis continues to be fundamental in constituting a useful complement for the judgments and opinions of experts in each field, assessing the outcomes of the scientific research activities, as well foreseeing how the research activities might progress (López-Muñoz et al. 2013).
Multivariable analysis following exploratory spatial analyses proved to be a useful complement for this study.
Although further assessment of its performance is required, the WSRT procedure appears to be a useful complement for mapping directly age-adjusted state cancer rates by county.
Recent work by Hoogstraten et al. also demonstrated that glycerol is a useful complement to acetate for site-specific labeling of nucleotides for biophysical studies using mutant E. coli strains (Johnson et al. 2006; Johnson and Hoogstraten 2008).
For some families, designed sequences can be a useful complement to experimental ones for homologue searching.
We provide a family of tests for the IID hypothesis based on generalized runs, powerful against unspecified alternatives, providing a useful complement to tests designed for specific alternatives, such as serial correlation, GARCH, or structural breaks.
The serological test based on the detection of circulating antibodies against M. tuberculosis-specific antigens could represent a useful complement to microscopic examination for screening active tuberculosis [ 9].
Microarrays therefore remain a useful complement to investigate situations for which MPSS data do not exist until other high throughput sequencing technologies become available that allow affordable, in depth analysis of EST representation.
