The phrase "a number of quantitative" is correct and usable in written English.
It can be used when referring to multiple quantitative measures or data points in a specific context, such as research or analysis.
Example: "In the study, a number of quantitative variables were analyzed to determine the overall impact of the intervention."
Alternatives: "several quantitative" or "multiple quantitative".
A number of quantitative methods for comparing DEM and experimental data were developed.
A number of quantitative empirical investigations have been conducted about this practice.
A number of quantitative and qualitative comparisons of heavy jet mass and the related thrust distribution are made.
The differences in the flexibility of the network components were analyzed using a number of quantitative measures.
Fisher's geometrical model amounts to a description of mutation and selection for individuals characterised by a number of quantitative traits.
I have used this sample, which is the most complete of its kind, as a basis for a number of quantitative and qualitative investigations into global strategy, competitive interaction, and R&D management.
To meet the need to compare the abundance of proteins in different samples, a number of quantitative approaches have been developed.
One of the major objectives of these designs is to study the functional relationship between one or more responses and a number of quantitative input factors.
A computer program designed to provide a number of quantitative analysis tools for high-resolution imaging and electron diffraction data is described.
To explore the amount and impact of retailers' order inflation when they compete for scarce supply, I used a number of quantitative research methods such as empirical, experimental and modeling approaches.
Image decomposition techniques were used to represent the predicted and measured displacement fields in order to allow a number of quantitative measures to be employed to assess the fidelity of the model.
