The phrase "allowed for a comparison" is correct and usable in written English.
It can be used when discussing the ability or opportunity to make a comparison between two or more items, situations, or concepts.
Example: "The study's design allowed for a comparison of the effectiveness of both treatments."
Alternatives: "facilitated a comparison" or "enabled a comparison".
The uniform format allowed for a comparison of the parameter sets with each other, which revealed large differences between the cost parameter sets.
The analysis of the force coefficients obtained for the various Reynolds numbers together with a visualization of the three-dimensionalities in the wake of the cylinder allowed for a comparison between the effects of the three spanwise extensions.
The results from two air handling units (AHUs), one Control-AHU and one AER-AHU (with an attached AER device), allowed for a comparison of energy consumption and filter lifespans.
Those models established time points for the transitions between theoretical stages of the nascent films and allowed for a comparison between two major classes of coating types (using the water-borne Rhoplex™ WL-81 and the solvent based Paraloid™ B-44).
This allowed for a comparison of social status rank within social groups among workers with the same job title.
This also allowed for a comparison of strains based on both, bioactivities of fruit body extracts and the physiological properties of cultures in vitro.
This allows for a comparison of the energy, health and lifestyle benefits of each that will inform future building developments.
Figure 2C shows the observed changes in groundwater storage from USGS and GRACE data sources and allows for a comparison with model results.
The combination of multiple data collection strategies in addition to traditional surveys allowing for a comparison of research methods while performing an evaluation of the cookstove intervention.
which allows for a comparison of citation counts across time.
The test set was compiled as described therein to allow for a comparison of results.
