Stacking of vectors to form a column vector
I am sure you can use c() because columns may be vectors even though vectors are not columns, but you really need to follow the posting guide and provide a reproducible example for us to show you how. You might find [1] helpful, in particular as it describes the use of the dput function to give us a few rows of your data. [1] http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnewmil at dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity.
On April 29, 2015 7:48:24 PM PDT, Olufemi Bolarinwa <dafemlions at yahoo.co.uk> wrote:
Thank you Jeff for your response. My y1, y2, y3 are actually 3 columns in the data so I cannot use the c() function to concatenate them. I am confusing the "columns" with vectors. I actually meant columns. Any help will be much appreciated Olufemi? On Wednesday, 29 April 2015, 22:31, Jeff Newmiller <jdnewmil at dcn.davis.CA.us> wrote: Vectors are not "columns" or "rows". Use the c() function to concatenate vectors. --------------------------------------------------------------------------- Jeff Newmiller? ? ? ? ? ? ? ? ? ? ? ? The? ? .....? ? ? .....? Go Live... DCN:<jdnewmil at dcn.davis.ca.us>? ? ? ? Basics: ##.#.? ? ? ##.#.? Live Go... ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Live:? OO#.. Dead: OO#..? Playing Research Engineer (Solar/Batteries? ? ? ? ? ? O.O#.? ? ? #.O#.? with /Software/Embedded Controllers)? ? ? ? ? ? ? .OO#.? ? ? .OO#.? rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. On April 29, 2015 6:56:46 PM PDT, Olufemi Bolarinwa <dafemlions at yahoo.co.uk> wrote:
Hello,I am estimating a system of nonlinear equation where I need to stack my vector of y. I have data of about 6000units. I tried using
the
rbind but instead of having a vector of 1 by 18000, it is giving me a
3
by 6000 so that my matrix multiplication is non-conformable. The stack command requires an identifier but in this case, I do not have a
unique
identifier. I would like to stack the the first 6000 units of y1 on the 2nd 6000 units of y2 and 6000 units of y3. Any help will be greatly appreciated. ThanksOlufemi ? ??? [[alternative HTML version deleted]]
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