Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

From |
Sadia Khalid <[email protected]> |

To |
[email protected] |

Subject |
Re: st: Re: Fill Missing values at the End |

Date |
Wed, 8 Jan 2014 21:40:17 +0500 |

the code is working. but the thing is that not getting required results what i have year name y 1990 Aqueela 50.1 1991 Aqueela 39.9 1992 Aqueela 93.4 1993 Aqueela 53.4 1994 Aqueela 5.9 1995 Aqueela 41.6 1996 Aqueela 1997 Aqueela 1998 Aqueela 1999 Aqueela 2000 Aqueela 1990 Abida 57.0 1991 Abida 44.3 1992 Abida 41.3 1993 Abida 92.3 1994 Abida 42.2 1995 Abida 56.0 1996 Abida 1997 Abida 1998 Abida 1999 Abida 2000 Abida 1990 Zubaida 68.5 1991 Zubaida 51.0 1992 Zubaida 41.7 1993 Zubaida 91.5 1994 Zubaida 40.7 1995 Zubaida 1996 Zubaida 1997 Zubaida 1998 Zubaida 1999 Zubaida 2000 Zubaida and what i want year name y 1990 Aqueela 50.1 1991 Aqueela 39.9 1992 Aqueela 93.4 1993 Aqueela 53.4 1994 Aqueela 5.9 1995 Aqueela 41.6 1996 Aqueela 96.6 1997 Aqueela 113.0 1998 Aqueela 132.0 1999 Aqueela 154.4 2000 Aqueela 180.4 1990 Abida 57.0 1991 Abida 44.3 1992 Abida 41.3 1993 Abida 92.3 1994 Abida 42.2 1995 Abida 82.7 1996 Abida 96.6 1997 Abida 113.0 1998 Abida 132.0 1999 Abida 154.4 2000 Abida 180.4 1990 Zubaida 68.5 1991 Zubaida 51.0 1992 Zubaida 41.7 1993 Zubaida 91.5 1994 Zubaida 40.7 1995 Zubaida 1996 Zubaida 1997 Zubaida 1998 Zubaida 1999 Zubaida 2000 Zubaida Regards Sadia Khalid On 8 January 2014 21:16, Nick Cox <[email protected]> wrote: > Sorry if I seem hard on you, but > > 1. If you are unclear the first time, almost the same question is > unlikely to be any clearer. > > 2. "not getting the required results" is completely opaque as an error report. > > > > Nick > [email protected] > > > On 8 January 2014 16:10, Sadia Khalid <[email protected]> wrote: >> Thanks >> >> Nick Cox. >> I have posted the almost same thing becuase of the fear that i have >> not explained the question welll in the first posts. sorrry for this. >> i have applied the code but not getting the required results. >> Regards >> Sadia Khaild >> >> On 8 January 2014 20:37, Nick Cox <[email protected]> wrote: >>> This appears to be the third posting of this question. (In fact, as I >>> wrote this, yet another posting appeared.) >>> >>> Please see the Statalist FAQ at >>> >>> http://www.stata.com/support/faqs/resources/statalist-faq/#noanswer >>> >>> to see that is one more than allowed. >>> >>> You also sent me personal mail. >>> >>> Again, not to do that is explained in the FAQ >>> >>> http://www.stata.com/support/faqs/resources/statalist-faq/#private >>> >>> Repeating a question (or minor variants of it) again and again is >>> _not_ likely to get more attention for your question than you would >>> otherwise get. In fact, it draws attention to yourself as someone who >>> (apparently) didn't read the FAQ carefully and/or doesn't respect the >>> list. No one is obliged to answer anything on Statalist. If you want a >>> tame consultant, hire one and pay accordingly. >>> >>> In this case David Ashcraft posted a suggestion >>> >>> http://www.stata.com/statalist/archive/2014-01/msg00206.html >>> >>> to which you replied >>> >>> http://www.stata.com/statalist/archive/2014-01/msg00207.html >>> >>> I don't understand the reply, but I don't think it explained why >>> David's suggestion didn't work. >>> >>> In any case, your recipe is to use the last known value and the value >>> 4 years before that and extrapolate forward, or to use the first known >>> value and the value 4 years after that and extrapolate backward. You >>> don't need new code to do that. It is an application of -ipolate-. >>> >>> 1. Clone your variable. >>> >>> 2. Replace the 4th, 3rd, 2nd last known values with missing. >>> >>> 3. Replace the 2nd, 3rd, 4th known values with missing. >>> >>> 4. Use -ipolate-. >>> >>> gen y2 = y >>> gen ismissing = missing(y) >>> bysort ismissing name (year) : replace y2 = . if inlist(_n, 2, 3, 4, >>> _N-3, _N-2, _N-1) >>> drop ismissing >>> bysort name (year): ipolate y2 year, gen(y3) epolate >>> >>> You want to use >>> >>> gen y_new = cond(missing(y), y3, y) >>> >>> I addressed the restriction only to apply when there are 5 or fewer >>> values missing in an earlier reply, so I won't repeat that here. >>> >>> http://www.stata.com/statalist/archive/2014-01/msg00187.html >>> >>> Nick >>> [email protected] >>> >>> >>> On 8 January 2014 15:05, Sadia Khalid <[email protected]> wrote: >>> >>>> I have working on Panel data. For some of the individuals end values >>>> are missing. I have to fill these values by first calculating the >>>> growth of the known five values. >>>> >>>> Like for the individual Aqueela values for the year 1996 – 2000 are >>>> missing. I will first calculate the growth rate of values from >>>> 1991-1995. the formula for calculating the growth rate is >>>> =((41.6/39.9)^(1/(5-1))-1). The growth rate is 1.05%. >>>> now the value in 1996 = value in 1995*(1+growth rate). >>>> >>>> And value in 1997= value in 1996 * (1+growth rate). >>>> >>>> And so on. >>>> >>>> For the second individual starting values are missing from 1996-2000 >>>> First I will have to find the r=growth rate of values from 1991-1995. >>>> Than the value in 1996 =value in 1995*(1+ growth rate) and >>>> value in 1997 =value in 1996/(1+ growth rate) and so on. >>>> >>>> >>>> for the last indiviual values are missing from 1995-2000 >>>> if for any indiviual more than 5 values are missing do not fill that. >>>> any code for this >>>> >>>> what i have >>>> >>>> what i have >>>> year name y >>>> 1990 Aqueela 50.1 >>>> 1991 Aqueela 39.9 >>>> 1992 Aqueela 93.4 >>>> 1993 Aqueela 53.4 >>>> 1994 Aqueela 5.9 >>>> 1995 Aqueela 41.6 >>>> 1996 Aqueela >>>> 1997 Aqueela >>>> 1998 Aqueela >>>> 1999 Aqueela >>>> 2000 Aqueela >>>> 1990 Abida 57.0 >>>> 1991 Abida 44.3 >>>> 1992 Abida 41.3 >>>> 1993 Abida 92.3 >>>> 1994 Abida 42.2 >>>> 1995 Abida 56.0 >>>> 1996 Abida >>>> 1997 Abida >>>> 1998 Abida >>>> 1999 Abida >>>> 2000 Abida >>>> 1990 Zubaida 68.5 >>>> 1991 Zubaida 51.0 >>>> 1992 Zubaida 41.7 >>>> 1993 Zubaida 91.5 >>>> 1994 Zubaida 40.7 >>>> 1995 Zubaida >>>> 1996 Zubaida >>>> 1997 Zubaida >>>> 1998 Zubaida >>>> 1999 Zubaida >>>> 2000 Zubaida >>>> >>>> and what i want >>>> >>>> year name y >>>> 1990 Aqueela 50.1 >>>> 1991 Aqueela 39.9 >>>> 1992 Aqueela 93.4 >>>> 1993 Aqueela 53.4 >>>> 1994 Aqueela 5.9 >>>> 1995 Aqueela 41.6 >>>> 1996 Aqueela 96.6 >>>> 1997 Aqueela 113.0 >>>> 1998 Aqueela 132.0 >>>> 1999 Aqueela 154.4 >>>> 2000 Aqueela 180.4 >>>> 1990 Abida 57.0 >>>> 1991 Abida 44.3 >>>> 1992 Abida 41.3 >>>> 1993 Abida 92.3 >>>> 1994 Abida 42.2 >>>> 1995 Abida 82.7 >>>> 1996 Abida 96.6 >>>> 1997 Abida 113.0 >>>> 1998 Abida 132.0 >>>> 1999 Abida 154.4 >>>> 2000 Abida 180.4 >>>> 1990 Zubaida 68.5 >>>> 1991 Zubaida 51.0 >>>> 1992 Zubaida 41.7 >>>> 1993 Zubaida 91.5 >>>> 1994 Zubaida 40.7 >>>> 1995 Zubaida >>>> 1996 Zubaida >>>> 1997 Zubaida >>>> 1998 Zubaida >>>> 1999 Zubaida >>>> 2000 Zubaida >>>> >>> >>> * >>> * For searches and help try: >>> * http://www.stata.com/help.cgi?search >>> * http://www.stata.com/support/faqs/resources/statalist-faq/ >>> * http://www.ats.ucla.edu/stat/stata/ >> >> * >> * For searches and help try: >> * http://www.stata.com/help.cgi?search >> * http://www.stata.com/support/faqs/resources/statalist-faq/ >> * http://www.ats.ucla.edu/stat/stata/ > > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/faqs/resources/statalist-faq/ > * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: Re: Fill Missing values at the End***From:*Nick Cox <[email protected]>

**References**:**st: Re: Fill Missing values at the End***From:*Nick Cox <[email protected]>

**Re: st: Re: Fill Missing values at the End***From:*Sadia Khalid <[email protected]>

**Re: st: Re: Fill Missing values at the End***From:*Nick Cox <[email protected]>

- Prev by Date:
**RE: st: Regression by industry and year excluding firm i** - Next by Date:
**Re: pairing unpaired data [was: Re: st: any idea?]** - Previous by thread:
**Re: st: Re: Fill Missing values at the End** - Next by thread:
**Re: st: Re: Fill Missing values at the End** - Index(es):