Exact(1)
Sparse files are supported.
Similar(59)
The data file is implemented very simply using the sparse file feature of Linux and most other UNIX-like operating systems.
Group-wide information on A. mormo hosts, however, is relatively sparse (Additional file 1: Table S1), so we are reluctant to draw broad conclusions about the variability of host plants as criteria for "ecological exchangeability" [ 6] or general ecological distinctiveness.
On the other hand, there was a clear lack of effect, or decline, in activities of monocultures of all the other strains as well as of any combinations that did not contain strain A. Positive Dmax values indicating overyielding and thus complementarity effects were generally sparse (Additional file 3).
To compare the relative size of storing sample by observation contingency tables in sparse BIOM-formatted files versus tab-separated files, we extracted 60 QIIME OTU tables from the QIIME database.
Although the court's reasons were sparse, the petition, filed by Prop 8 supporters, argues that "the record is already replete with evidence showing that any publicizing of support for Prop 8 has inevitably led to harassment, economic reprisal, threats, and even physical violence".
Because zero-values are not included in the sparse BIOM-formatted file, representing the same information in this format requires 14 times less space than with a tab-separated text file (Supplementary File 1).
We attribute the 30%% speedup over ADAM (1 min and 52 sec) to VARIANTSPARK converting the VCF files to sparse vectors, whereas ADAM creates dense vectors, which are less memory efficient.
This algorithm is particularly fast and the elastic net penalty is most appropriate to handle large and sparse problems (compare Additional file 5 Figure S1) of correlated inputs.
Substituting equation (18) for g2= T2 α in equation (15) gives: 19 20 where,,, J2=− 1,, The matrix of imputed marker covariates can be obtained efficiently, using partitioned inverse results, by solving the easily formed very sparse system [see Additional file 1]: 21 where A i j are partitions of A−1 that correspond to partitioning g into g1 and g2.
The primary objectives of the BIOM file format are presented in Additional file 2. In addition to consolidating data and metadata in a single, standard file format, the BIOM file format supports sparse and dense matrix representations to efficiently store these data on disk.
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