If you like SQLite for data analysis, you might want to check out DuckDB https://github.com/cwida/duckdb which is billed as "SQLite for analytics."
SQLite is a row store, which is best for OLTP (point queries, inserting/updating/deleting one or a few rows at a time), while DuckDB is a column store, which means the data layout has values from the same column stored contiguously, making aggregation queries (GROUP BY) perform much better.