The phrase "a lack of appropriate data" is correct and usable in written English.
It can be used when discussing insufficient or inadequate information needed for analysis, decision-making, or research.
Example: "The study was inconclusive due to a lack of appropriate data, making it difficult to draw any firm conclusions."
Alternatives: "insufficient relevant data" or "inadequate data availability".
However, the status and trend of ES in CMF have not been assessed in many developing countries because of a lack of appropriate data, tools, appropriate policy or management framework.
A lack of appropriate data for mixed-layer clays meant that all patterns were tentatively analyzed using saponite and chlorite end-members, with mixed-layer clay abundances determined by summing the two end-member phases.
However, thus far there is a paucity of studies on potential effects of the ongoing internationalization on a firm's recruitment and training behavior, also because of a lack of appropriate data (Eriksson [2010]).
One reason for these observations may be a lack of appropriate data, or the technology to collect appropriate data, combined with the inherent complexity of corporate sustainability as a concept (Searcy and Elkhawas, 2012; Wiedmann and Barrett, 2010).
Understanding heterogeneity of malaria transmission has been difficult due to a lack of appropriate data.
The phylogenetic relationships of many taxa remain poorly known because of a lack of appropriate data and/or analyses.
Due to a lack of appropriate empirical data, this also commonly goes along with the formulation of assumptions ('Assumptions for data modification').
A lack of appropriate technology, data, and limited financial resources are also important contributors to the absence of such assessments.
Our knowledge of galagid evolutionary history has been limited by a lack of appropriate molecular data and a paucity of fossils.
While in most candidate cases found in the literature, lack of appropriate data prevents a detailed application and parameterization of the model for specific biological systems, there is one example where it is presently possible.
Lack of appropriate data has hampered an examination of these relationships.
