# Index In this section we describe GN features: ## [Introduction](introduction.md) ## Topics 1. [Data structures](data-structures.md) 1. [Search](search.md) for genes, QTL, SNPs, etc. 1. Available datasets and annotation 1. Selecting and filtering data 1. Online genome, variant, SNP browsers 1. [Mapping](mapping.md) QTL and GWAS 1. Statistical overviews and heatmaps 2. About mapping and population stratification—Using LMMs 3. Correlations and scatterplots—the first steps toward networks 4. Partial correlations—a simple type of causal modeling 5. Graphs and moving toward acyclic causal models—from Swell Wright to Judea Pearl 6. Phenome-wide association mapping: Getting at pleiotropy 7. Bayesian Network Webserver in GN 8. Collections and sharing 9. Multifamily and multispecies data comparison and integration 10. Connecting other services, such as Webgestalt, GeneWeaver 11. Upload, review and edit data 12. Experimental design and power calculations 13. Community, materials and documentation 14. Free software and deployment ## Discussion 1. [Future work](future-work.md)