Here's a nice graphic visualizing the breakdown of today's GDP figure by components (personal consumption, fixed investment, inventories, exports, imports, & government expenditure). What we can see is that growth in non-government areas (consumption, investments, trade, and inventories) added about the same amount to GDP as the previous 3rd quarter, but it was a huge slump in government spending that made the overall reading for the quarter much weaker (3.2% vs 4.1%). So, we can see pretty clearly the result of the government shutdown on the economy.