Re: [R] Selecting columns of a table (not consecutive) >I have a table with 10 columns and many rows. >I want to select the 3rd,4th and 10th column. >problem.
There are three Military Departments within the Department of Defense: the Department of the Army, which the United States Army is organized within. the Department of the Navy, which the United States Navy and the United States Marine Corps are organized within.
The Army, Navy, and Marine Corps were established in 1775, in concurrence with the American Revolution. The War Department was established in 1789, and was the precursor to what is now the Department of Defense. One year later, in 1790, the Coast Guard (part of Homeland Security in peace time) was established. This was followed by the founding of the Department of the Navy in 1798.... Read more.