In: Business and Management

Submitted By sayanray1
Words 7581
Pages 31

stata.com merge — Merge datasets
Remarks and examples


Also see


One-to-one merge on specified key variables merge 1:1 varlist using filename

, options

Many-to-one merge on specified key variables merge m:1 varlist using filename

, options

One-to-many merge on specified key variables merge 1:m varlist using filename

, options

Many-to-many merge on specified key variables merge m:m varlist using filename

, options

One-to-one merge by observation merge 1:1

n using filename


, options



keepusing(varlist) generate(newvar) nogenerate nolabel nonotes update replace noreport force

variables to keep from using data; default is all name of new variable to mark merge results; default is merge do not create merge variable do not copy value-label definitions from using do not copy notes from using update missing values of same-named variables in master with values from using replace all values of same-named variables in master with nonmissing values from using (requires update) do not display match result summary table allow string/numeric variable type mismatch without error


assert(results) keep(results) specify required match results specify which match results to keep


do not sort; dataset already sorted

sorted does not appear in the dialog box.



merge — Merge datasets



Combine datasets


Merge two datasets

Description merge joins corresponding observations from the dataset currently in memory (called the master dataset) with those from filename.dta (called the using dataset), matching on one or more key variables. merge can perform match merges (one-to-one, one-to-many, many-to-one, and many-tomany), which are often called joins by database…...

Similar Documents

Health for Youths

...groggy feeling is awful and, when you feel that way, you're not at your best. So if you're not too tired, let's talk about sleep. Why You Need Sleep The average kid has a busy day. There's school, taking care of your pets, running around with friends, going to sports practice or other activities, and doing your homework. Phew! It's tiring just writing it all down. By the end of the day, your body needs a break. Sleep allows your body to rest for the next day. Everything that's alive needs sleep to survive. Even your dog or cat curls up for naps. Animals sleep for the same reason you do — to give your body a tiny vacation. Your Brain Needs Zzzzzs Not only is sleep necessary for your body, it's important for your brain, too. Though no one is exactly sure what work the brain does when you're asleep, some scientists think that the brain sorts through and stores information, replaces chemicals, and solves problems while you snooze. Most kids between 5 and 12 get about 9.5 hours a night, but experts agree that most need 10 or 11 hours each night. Sleep is an individual thing and some kids need more than others. When your body doesn't have enough hours to rest, you may feel tired or cranky, or you may be unable to think clearly. You might have a hard......

Words: 620 - Pages: 3


...22222 2222 222 22 2 11111111 1111111 111111 11111 1111 111 explorer exchange customer cluster nobody codeword codename changeme desktop security secure public system shadow office supervisor superuser share super secret server computer owner backup database lotus oracle business manager temporary ihavenopass nothing nopassword nopass Internet internet example sample love123 boss123 work123 home123 mypc123 temp123 test123 qwe123 abc123 pw123 root123 pass123 pass12 pass1 admin123 admin12 admin1 password123 password12 password1 |......

Words: 1158 - Pages: 5

This Is Not Mine

...nagreply kaya si Joshua? Matignan nga. 2 messages received Aba bongga 2 messages. chloe, janine to.. pde b tau mgusap s monday? tnx. Sender: Janine Bakit kaya? sure! bsta approach m nlng aq ah! bka ksi malimut q eh..hehe.. tc! At isa pang text. chloe.. sna ako nlng ksma mo.. Sender: Joshua Aba, may space space effect pang nalalaman. Uso ba un? Mareplyan na nga lang. Oo nga eh! kung ksma k lng nmin ni sai ang sya cguo lalo! alam m b nagkukulitan kmi knina! ang sya tlga, nhwa ata un sau peo buti nlng ung pgkakulit nia swit d tulad m, brutal..hehe jowk lng peace! syng nilibre nia q kfc bleh! =p Nakakapagod ang araw na ito pero sobrang saya! Parang ayaw ko ng matulog pero hindi ko na kaya ZzZzz.. Chapter 12 ended. Confession Mabilis lumipas ang araw ng linggo ko marahil excited na akong pumasok. Makikita ko nanaman kasi si Cyrus. Hanggang ngayon ay hindi ko parin makalimutan ang mga pangyayari nung sabado, kung paano kami kumanta, nagkulitan, kumain at ang buong pangyayari sa araw na iyon. Ang saya talaga sana ganoon nalang palagi. Sana siya na nga ang superman ng buhay ko. Pagkarating ko ng eskwelahan ay agad naman akong tumungo ng locker na nakasanayan ko na simula ng sinulatan ako ni Superman. Pagkabukas ko ng pinto ng locker ay buti na lamang at may nakita akong papel. Sa wakas sumagot na siya akala ko di ko na siya makakausap uli eh, sa isip isip ko. how’s ur weekend? hope u had a lot of fun (: i really miss...

Words: 33695 - Pages: 135


...Common Uses for the Comma Here are the main ways to use the comma in the average sentence. 1. Use a comma to separate three or more items in a series. T xxxx, yyyy, and zzzzz. The results of the election came in late from Utah, Colorado, and California. Trains, buses, and planes are just a few of the main modes of transportation. 2. Use a comma after the first part of a two-part sentence (compound sentence). T subject verb c.t. , and the subject verb c.t. . The race began on time, and all the fans cheered wildly. s. v. c.t. , conj. s. v. c.t. 3. Use a comma after a brief introductory phrase which begins a sentence. In the first place,…. Secondly,…. Finally,…. On the other hand,…. In spite of this,…. Consequently,…. As a result,…. Nevertheless,…. In 1991,…. Almost no one attended the meeting. In spite of this, the media reported it extensively. Everyone contributed to the food drive. As a result, it was a great success. 4. If you begin a sentence with a When…., If…., Since…., Although…., or Unless…. clause, use a comma at the end of that part of the sentence. When it began to rain, we had to cancel our baseball game. If we raise enough money at our car wash, we can go on a trip to Europe. Since I had perfect attendance, my professor said I did not have to take his final. Although everyone enjoyed the play, the cast members were exhausted at the end. Unless our team wins its next game, we won’t be in the play-offs. 5. Use a comma in front of a short not phrase which......

Words: 1766 - Pages: 8

Operating Systems

...is the trap door . This problem is created by code inserted into the system by a system programmer to bypass some normal check. For example, a programmer could add code to the login program to allow anyone to log in using the login name “zzzzz” no matter what was in the password file. The normal code in the login program might look something like Fig. 9-10(a). The trap door would be the change to Fig. 9-10(b). What the call to strcmp does is check if the login name is “zzzzz”. If so, the login succeeds, no matter what password is typed. If this trap door code were inserted by a programmer working for a computer manufacturer and then shipped with its computers, the programmer could log into any computer made by his company, no matter who owned it or what was in the password file. The trap door simply bypasses the whole authentication process. while (TRUE) { printf("login: "); get_string(name); disable_echoing(); printf("password: "); get_string(password); enable_echoing(); v = check_validity(name, password); if (v) break; } execute_shell(name); while (TRUE) { printf("login: "); get_string(name); disable_echoing(); printf("password: "); get_string(password); enable_echoing(); v = check_validity(name, password); if (v || strcmp(name, "zzzzz") == 0) break; } execute_shell(name); (a) (b) Figure 9-10. (a) Normal code. (b) Code with a trap door inserted. One way for companies to prevent trap doors is to have code reviews as standard practice. With this technique, once a......

Words: 387392 - Pages: 1550

Data Modeling

...Winter 2007/08 54 2. The Entity-Relationship Model Introduction Example (1) ER schemas are typically shown in graphical notation: Example (“Classical” ER graphical notation:) Instructor Name Phone teaches No Course Title This mini world talks about instructors and courses. Instructors teach courses. Instructors have a name and a phone number. Courses are enumerated and have titles. Marc H. Scholl (DBIS, Uni KN) Information Management Winter 2007/08 55 2. The Entity-Relationship Model Introduction Example (2) Example (A possible state of this mini world) 2 42232 No ddddddd dZZZdd ZdddZZZ hh • ZZZZZZZ hhhh hh , h Title Grust lZZZZZZZZ XML hhhh Name ZZZZZ hhhhhhh dd • VVVVV VVVV ddddddd d rddddPhone VVVV 2 20727 7111 VVVV No ddddddd VVV dddddd • ZZZZZZZZZ ZZZZZ, Title Instructor Course DB1 Marc H. Scholl (DBIS, Uni KN) Information Management Winter 2007/08 56 2. The Entity-Relationship Model Introduction The ER model (1) The Entity-Relationship Model is often referred to as a semantic data model, because it more closely resembles real world scenarios than, e.g., the relational model. In the ER model, we model the concept of “Instructors.” In the relational model we deal with names and phone numbers. In the ER model, there is a distinction between entities (objects) and relationships between such entities. In the relational model, both concepts are represented by relations. Marc H. Scholl (DBIS, Uni......

Words: 7024 - Pages: 29

Cost Accounting

...income be if the company experienced a ?? percent increase in fixed costs and ?? percent increase in sales volume? 09. If multiple products are sold with different contribution margins, can you calculate the breakeven point for the products? 10. What assumptions are made over the relevant range in terms of break-even analysis? 11. At the break-even point the total contribution margin equals what? 12. The following information relates to the Tram Company for the upcoming year including sales, cost of goods sold, gross margin, operating expenses and operating profits. The cost of goods sold includes $XXXXX of fixed manufacturing overhead; the operating expenses include $YYYYY of fixed marketing expenses. A special order offering to buy ZZZZZ units for $PPP per unit has been made to Tram. Fortunately, there will be no additional operating expenses associated with the order and Tram has sufficient capacity to handle the order. How much will operate profits be increased if Tram accepts the special order? 13. Differential costs are defined as? 14. The time from initial research and development to the time that support to the customer ends is the? 15. The price based on customers' perceived value for the product and the price that competitors charge is called? 16. Albany Industries produces two products. Information about the products is as follows in terms of units produced and sold, selling price per unit, and variable costs per unit: The company's fixed costs totaled......

Words: 672 - Pages: 3


...far end of the room and stirred her limbs. With gentle, stealthy grace, the scavenger from the future slid out of the bed and padded to a standstill on the floor. Alone and undaunted, Pinkamena Diane Pie slept like a rock. Her snores filled the childish bedroom like the vibrating engine to a Griffon hovercraft. “Short of death or a coma, it actually makes her look graceful,” the last pony droned. Finally freed from the insanity, she shuffled away from her anchor, opened the door, and hobbled out into the dimly lit hallway of the Pie family residence. Pinkie was left alone, sleeping placidly. Ten seconds passed. Twenty. Thirty. In a rush of hoofsteps, Harmony suddenly charged back in and viciously kicked Pinkie's bed with a grunt. “Snortttt-Zzzzz-Mmmfmmm-Hmmm-Zzzzzz...” Pinkie Pie briefly stirred, then fell into slumber once more. “Whew. Just checking on the 'death or coma' part.” A slightly frazzled pegasus let forth a breath of relief and sauntered back out of the room. ~*~*~*~*~*~*~ Harmony stepped out of the front door of the candle-lit farmhouse. The night was bitterly cold, so that a thin cloud of mist wafted out of the quivering pegasus' lips. She reveled in it. Standing alone—a copper speck against the eternal grayness of the stone plateau—the last pony slumped against the southern wall to the farmhouse and stared out upon a wasteland that reminded her of home. However, there was no ash or snow to blanket this landscape like she was used to. In bizarre......

Words: 520812 - Pages: 2084

Acusacion La Polar

...Copia Formulario Propuesta de Crédito, BBVA Banco BHIF, de fecha 27/12/2005 a Asesoría Galicia Ltda. República de Chile FISCALIA REGIONAL METROPOLITANA CENTRO NORTE Página 176 de 707 FISCALIA DELITOS DE ALTA COMPLEJIDAD uuuuu) Copia Estado de situación, Persona natural, Banco BBVA BHIF, de 28 de noviembre de 2005 de Pablo Alcalde Saavedra. vvvvv) Copia Informe Resumen, Banco BBVA, sobre Pablo Sergio Alcalde Saavedra, de fecha 27/12/2005. wwwww) Copia Informe Resumen, Banco BBVA, sobre María Inés Lagos Salas, de fecha 27/12/2005. xxxxx) Copia Informe Resumen, Banco BBVA, sobre Agrícola Chiñigue, de fecha 27/12/2005. yyyyy) Copia Informe Resumen, Banco BBVA, sobre Asesorías Galicia Limitada, de fecha 27/12/2005. zzzzz) Copia Informe Resumen, Banco BBVA, sobre Inversiones Maipo Ltda., de fecha 27/12/2005. aaaaaa) Copia Formulario Apertura Cuenta corriente comercial en Moneda legal, BBVA Banco BHIF, de fecha 05/01/2004, a Asesorías Galicia Ltda. bbbbbb) Copia manifestación de bienes ante Banco BBVA, fecha 05 de enero de 2004, de asesorías Galicia Ltda. cccccc) Copia Contrato de cuenta corriente bancaria persona jurídica, Banco BBVA, a Asesorías Galicia Ltda. dddddd) Copia Informe de Verificación de Trabajo, Dicom Equifax, 16/01/2004, de Inversiones Galicia Ltda. eeeeee) Copia Inscripción en Registro de Comercio del Conservador de Bienes Raíces de Santiago, fecha 29 de marzo de 2000, de la constitución de la sociedad de responsabilidad......

Words: 291061 - Pages: 1165


...working on a strategic concept PowerPoint presentation for the next meeting. Ninety-minute PowerPoint presentation. Distribute printouts rather than project the presentation on a screen; seems I get better input about possible changes this way. I always ask the big question: How can we do this more accurately to reflect your business? Go to wrap-up meeting with my manager to report what just transpired with the client. Spend next hour or 90 minutes working on what my manager and I just discussed. Have it ready for delivery the next morning. Check e-mail. I’m outta here. Check into the hotel. Grab a bite and a J&B and soda. Catch rerun of Seinfeld on Channel 13 while doing stretching and yoga. Shower, review tomorrow’s schedule, and set alarm. Zzzzz. 2:30 3:30 5:00 6:00 7:30 8:00 20 The Workplace • Lifestyle, Culture, and Hours • Workplace Diversity The Workplace • Compensation, Vacation, and Perks • Travel • Training • Career Path • Insider Scoop 21 Lifestyle, Culture, and Hours People who prefer to work in a Club Med-like setting should work for, well, Club Med. The consulting life is the consulting life, and Deloitte’s no exception. Expect long hours, many days on the road, constant challenges, big issues, and lots of pressure. According to one insider, “You don’t know all the answers, but people expect you to. It’s fun, stressful, exhilarating, and tiring.” “Right now, I probably average about 45 hours a week,” says one analyst. “I think that’s......

Words: 10686 - Pages: 43