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From |
Nikolaos Kanellopoulos <nkkanel@yahoo.gr> |

To |
"statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |

Subject |
st: Create new distribution under certain criteria |

Date |
Sun, 24 Jun 2012 20:09:09 +0100 (BST) |

Dear all, This is more of a statistical rather than a Stata specific question. I have two series. One is constantly positive (y) and the other can be negative but with a positive mean (x). I want to create a third series (newx) which will be a transformation of x but it must always be positive and its sum must be the same as this of x. To do this I assume that the distribution of the y and x is the same and thus multiply the sum of x with the shares of y. An example: *------------------------------------------------------ sysuse abdata , clear keep wL1 nL1 drop if missing(wL1, nL1) ren wL1 y ren nL1 x egen t_y=total(y) gen y_share=y/t_y egen t_x=total(x) gen newx = y_share*t_x egen t_newx=total(newx) su t_x t_newx *------------------------------------------------------ In addition, I want to take into account whether x is positive (more important) or negative (less important) and my question is how I can do this. Thank you in advance. Nikos * * 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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