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From |
Friedrich Huebler <fhuebler@gmail.com> |

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

Subject |
Re: st: Some basic help on programming |

Date |
Mon, 16 Apr 2012 07:36:42 -0400 |

Prakash, Please show your code. How many levels do you have? Friedrich On 2012-04-16, at 2:02, Prakash Singh <prakashbhu@gmail.com> wrote: > Friedrich > > I could make necessary changes in the programme for most of the part > and in fact I could run it successfully but later on I thought why we > can't merge level`l'data the way item`i' data is merged and that's how > I starting falling apart. > > I am sorry for my slow learning but this is my first time with any > programming effort, I could tell you only after reaching dead end of > the efforts I am knocking. > > Thanks > Prakash > > On Mon, Apr 16, 2012 at 4:25 AM, Friedrich Huebler <fhuebler@gmail.com> wrote: >> Prakash, >> >> You should have enough information to find the solution yourself. >> Previously, you worked with two files, level3_list.dta and >> level4_list.dta. The numbers 3 and 4 occur at the beginning and end of >> the code I provided. Now assume you add level5_list.dta. I indicate >> below where you have to change the code. >> >> local levels "3 4" <-- Change this command by adding the number 5 >> [leave remaining commands unchanged] >> drop _merge <-- Add this because you merge more than two sets of >> data. See -help merge- for more information. >> merge common_id using "level4data.dta" <-- Repeat the last command >> from the original code but change 4 to 5. >> >> Repeat the above if you want to add levels 6, 7 and so on. >> >> Friedrich >> >> On Sat, Apr 14, 2012 at 1:44 PM, Prakash Singh <prakashbhu@gmail.com> wrote: >>> Dear Friedrich, >>> >>> Though, I am reading materials to learn programming but I am finding >>> it little tricky thus forced to ask probably this stupid query. >>> I was wondering what should be the command for creating local in case >>> I want to let stata read more than two levels of data in the >>> programme code you provided me the last mail. the codes I have pasted >>> below for ease. >>> >>> local levels "3 4" >>> foreach l of local levels { >>> use "level`l'_list.dta", clear >>> local vars "item_code asicc_code unit_quantity quantity value" >>> levelsof item_code, local(items) >>> foreach i of local items { >>> preserve >>> keep if item_code==`i' >>> foreach var of varlist `vars' { >>> ren `var' `var'_`i' >>> } >>> sort common_id >>> save "item`i'.dta", replace >>> restore >>> } >>> contract common_id >>> drop _freq >>> foreach i of local items { >>> merge common_id using "item`i'.dta" >>> drop _merge >>> sort common_id >>> } >>> save "level`l'data.dta" >>> } >>> use "level3data.dta" >>> merge common_id using "level4data.dta" >>> >>> Thanks >>> Prakash * * 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/

**Follow-Ups**:**Re: st: Some basic help on programming***From:*Prakash Singh <prakashbhu@gmail.com>

**References**:**st: Some basic help on programming***From:*Prakash Singh <prakashbhu@gmail.com>

**Re: st: Some basic help on programming***From:*Maarten Buis <maartenlbuis@gmail.com>

**Re: st: Some basic help on programming***From:*Prakash Singh <prakashbhu@gmail.com>

**Re: st: Some basic help on programming***From:*Maarten Buis <maartenlbuis@gmail.com>

**Re: st: Some basic help on programming***From:*Prakash Singh <prakashbhu@gmail.com>

**Re: st: Some basic help on programming***From:*Friedrich Huebler <fhuebler@gmail.com>

**Re: st: Some basic help on programming***From:*Prakash Singh <prakashbhu@gmail.com>

**Re: st: Some basic help on programming***From:*Friedrich Huebler <fhuebler@gmail.com>

**Re: st: Some basic help on programming***From:*Prakash Singh <prakashbhu@gmail.com>

**Re: st: Some basic help on programming***From:*Friedrich Huebler <fhuebler@gmail.com>

**Re: st: Some basic help on programming***From:*Prakash Singh <prakashbhu@gmail.com>

**Re: st: Some basic help on programming***From:*Friedrich Huebler <fhuebler@gmail.com>

**Re: st: Some basic help on programming***From:*Prakash Singh <prakashbhu@gmail.com>

**Re: st: Some basic help on programming***From:*Friedrich Huebler <fhuebler@gmail.com>

**Re: st: Some basic help on programming***From:*Friedrich Huebler <fhuebler@gmail.com>

**Re: st: Some basic help on programming***From:*Prakash Singh <prakashbhu@gmail.com>

**Re: st: Some basic help on programming***From:*Friedrich Huebler <fhuebler@gmail.com>

**Re: st: Some basic help on programming***From:*Prakash Singh <prakashbhu@gmail.com>

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