NiMARE includes a wide range of tools with a correspondingly large number of possible outputs. Here we outline the rules we apply to NiMARE outputs.
NiMARE-generated files, especially ones made by meta-analyses, follow a naming convention somewhat based on BIDS.
Here is the basic naming convention for statistical maps:
[value]_desc-[description]_level-[cluster|voxel]_corr-[FWE|FDR]_method-[method].nii.gz
First, the value represents type of data in the map (e.g., z-statistic, t-statistic). Some of the values found in NiMARE include:
- z: Z-statistic
- t: T-statistic
- p: p-value
- logp: Negative base-ten logarithm of p-value
- chi2: Chi-squared value
- prob: Probability value
- of: Test value of MKDA and KDA methods
- ale: Test value of ALE and SCALE methods
Next, a series of key/value pairs describe the methods applied to generate the map.
- desc: Description of the data type. Only used when multiple maps with the same data type are produced by the same method.
- level: Level of multiple comparisons correction. Either cluster or voxel.
- corr: Type of multiple comparisons correction. Either FWE (familywise error rate) or FDR (false discovery rate).
- method: Name of the method used for multiple comparisons correction (e.g., "montecarlo" for a Monte Carlo procedure).