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From |
Nick Cox <[email protected]> |

To |
[email protected] |

Subject |
Re: st: ranking variables on the basis of total values of observations |

Date |
Wed, 28 Mar 2012 20:37:35 +0100 |

On Wed, Mar 28, 2012 at 8:34 PM, Nick Cox <[email protected]> wrote: > As far as I can see this could mean several things. I am not clear > that when you say "rank" you don't mean "order" instead. > > I don't think you want -rowranks- (SSC). > > Why not just give us a toy dataset, with say 5 observations and 5 > variables, and what you want to change it to? Then it should be easier > to see what you want. > > By the way, adding lots of blank lines just makes your posts more > difficult to read. I've edited what came in. > > Nick > > On Wed, Mar 28, 2012 at 8:22 PM, tashi lama <[email protected]> wrote: >> >> I have a list of variables and I would like to rank the variables or any given variable for that matter on the basis of total values of their observations. I thought of approaching this problem in the following way. >> >> 1. find the running sum of all the variables using generate or the total using egen although I think I would prefer generate. >> >> say there are var1 var2 var3 >> >> gen tvar1=sum(var1) >> gen tvar2=sum(var2) >> gen tvar3=sum(var3) >> >> 2. then compare tvar1, tvar2 and tvar3 using if conditions. >> >> Once this is done, I would like to expand such that I can rank those variables but for given period of time. And this is essentially why I think generate sum is better for this problem because it is a running sum. > >> say date var1 var2 var3 >> >> I would like to be able to rank variables say for 01jan2011 to 01feb2011 and so on. >> >> Has anyone worked in this kind of problem before or does anyone have any idea or thought regarding this problem? Any help or lead would be highly appreciated? I saw that there is a stata module rowranks to calculate ranks in a row but i don't know how can it be useful to me. Most probably not.... * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

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