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From |
"Martin Weiss" <martin.weiss1@gmx.de> |

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

Subject |
AW: st: Simple questions regarding time series data |

Date |
Fri, 17 Jul 2009 09:21:05 +0200 |

<> Re the first question: You can at least get your hands on several pieces of information regarding the time-series setup of your data by simply repeating -tsset- w/o arguments. ************* webuse sunspot, clear tsset time, yearly quietly tsset return list ************* HTH Martin -----Ursprüngliche Nachricht----- Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Ulrich Kohler Gesendet: Freitag, 17. Juli 2009 09:10 An: statalist@hsphsun2.harvard.edu Betreff: Re: st: Simple questions regarding time series data <> Others might be better prepared for answering your question 1. Meanwhile I have answers to the others: Am Freitag, den 17.07.2009, 10:17 +0800 schrieb Shruthi JAYARAM: > I have a few very simple questions regarding time series data manipulation > - I'm relatively new to STATA (was using R before) and couldn't locate the > answers in the help manual. ... > 2. Is it possible to concatenate strings and numbers into a larger string? > For example, I have a variable y and I want to get the output "The > forecasted GDP for 2009 is y". Can I write a command that intuitively > carries out this: gen outputstring = paste("The forecast GDP for 2009 is", > y) . gen outputstring = "The forcast GDP for 2009 is " + string(y) see -help operators- and -help string functions-. > 3. If I have a time variable x that runs from 1990m1 to 1990m12, how do I > extract the first observation? In R, variables are arrays or matrices, > allowing you to specify the particular observation you would need, such as > x[1] for the first observation of x. What is the equivalent in STATA? It is just the same: . display x[1] displays the frist value in variable x. You can also put expressions inside the brackets: . display x[int(_N/2)+1)] See -help exp- for what Stata (not: STATA) means by "expression". > 4. Finally, is it possible to invoke the system command line from within > STATA to run an outside program during the STATA proceses? See . help shell Hope this helps Uli -- kohler@wzb.eu 030 25491-361 * * 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/ * * 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/

**References**:**st: Simple questions regarding time series data***From:*Shruthi JAYARAM <Shruthi_JAYARAM@mti.gov.sg>

**Re: st: Simple questions regarding time series data***From:*Ulrich Kohler <kohler@wzb.eu>

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