Creating notation for a sequence of gradually ordered sequences?











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I'm creating a statistical model where I have nine ordered variables (which I'm representing here with integers 1 to 9). I want to create notation for each variable gradually accumulating with the previous variables, in an accumulative sequence up until all nine variables are represented.



So the very basic model would first have:



1



then



1 + 2



up until..



1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9



In addition, how can I represent dependency with notation? So variable 2 is dependent on 1 being included in the model, variable 3 is dependent on 1 and 2 and so on..



This question is probably very banal so apologies, my math isn't great..






sequences-and-series notation







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    I'm creating a statistical model where I have nine ordered variables (which I'm representing here with integers 1 to 9). I want to create notation for each variable gradually accumulating with the previous variables, in an accumulative sequence up until all nine variables are represented.



    So the very basic model would first have:



    1



    then



    1 + 2



    up until..



    1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9



    In addition, how can I represent dependency with notation? So variable 2 is dependent on 1 being included in the model, variable 3 is dependent on 1 and 2 and so on..



    This question is probably very banal so apologies, my math isn't great..






    sequences-and-series notation







    share|cite|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I'm creating a statistical model where I have nine ordered variables (which I'm representing here with integers 1 to 9). I want to create notation for each variable gradually accumulating with the previous variables, in an accumulative sequence up until all nine variables are represented.



      So the very basic model would first have:



      1



      then



      1 + 2



      up until..



      1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9



      In addition, how can I represent dependency with notation? So variable 2 is dependent on 1 being included in the model, variable 3 is dependent on 1 and 2 and so on..



      This question is probably very banal so apologies, my math isn't great..






      sequences-and-series notation







      share|cite|improve this question













      I'm creating a statistical model where I have nine ordered variables (which I'm representing here with integers 1 to 9). I want to create notation for each variable gradually accumulating with the previous variables, in an accumulative sequence up until all nine variables are represented.



      So the very basic model would first have:



      1



      then



      1 + 2



      up until..



      1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9



      In addition, how can I represent dependency with notation? So variable 2 is dependent on 1 being included in the model, variable 3 is dependent on 1 and 2 and so on..



      This question is probably very banal so apologies, my math isn't great..






      sequences-and-series notation




      sequences-and-series notation






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      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










      asked Nov 21 at 16:24









      user126082

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