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From |
Maria Ana Vitorino <vitorino@wharton.upenn.edu> |

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

Subject |
Re: st: number of dates in x axis |

Date |
Tue, 24 May 2011 14:52:41 -0400 |

This is what I'm getting: . generate date1=date(date,"MY") . format date1 %tm . list date1 date in 1 +------------------+ | date1 date | |------------------| 1. | 3469m3 Aug2009 | +------------------+ What am I doing wrong? Thanks, Ana On May 24, 2011, at 2:18 PM, Nick Cox wrote:

% sacrificial line. Nick n.j.cox@durham.ac.uk -----Original Message----- From: Nick Cox Sent: 24 May 2011 19:16 To: 'statalist@hsphsun2.harvard.edu' Subject: RE: st: number of dates in x axisPlease: I want to see the _exact_ code you typed. No commentary, noparaphrase, no speculation. If you want to debug your code yourself,feel free to do so. If you want me to try to debug your code, I amhappy to try, but that means your code, not your thoughts about whatmight be wrong with your code.Nick n.j.cox@durham.ac.uk -----Original Message-----From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Maria Ana VitorinoSent: 24 May 2011 19:11 To: statalist@hsphsun2.harvard.edu Subject: Re: st: number of dates in x axis I tried your code again (this time by pasting it into the do-file editor instead into the command window) and it worked. But my version is not working (I still get the invalid label specifier message). Could it be because my time variable has gaps? Also, how can one setup the "11" in your for loop without having to make mental calculations regarding the number of months? Thanks for the help! Ana On May 24, 2011, at 1:31 PM, Nick Cox wrote:Yes. Show me the _exact_ code you typed. Nick n.j.cox@durham.ac.uk -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu ] On Behalf Of Maria Ana Vitorino Sent: 24 May 2011 18:29 To: statalist@hsphsun2.harvard.edu Subject: Re: st: number of dates in x axis Thanks Nick. I tried running your example but I got the error message "invalid label specifier, : 15341 15400 15461 ..." Any suggestions? Thanks! Ana On May 24, 2011, at 4:20 AM, Nick Cox wrote:There is relevant material at Stata 7: How can I get "nice" date labels on a graph? http://www.stata.com/support/faqs/graphics/nicedate.html StataCorp have added this annotation: "Note: This FAQ is relevant for users of releases prior to Stata 8. For Stata 8 see update from 12 September 2003." In fact the techniques there do remain useful for some problems. Here's an example with different data. Here I decide that I want labels every 2 months from 1 January 2002 to 1 January 2003. I loop over the dates and put them in a bag, namely a local macro. sysuse xtline1 xtset person day forval i = 1(2)11 { local thisdate = mdy(`i', 1, 2002) local mydates `mydates' `thisdate' } local thisdate = mdy(1,1,2003) local mydates `mydates' `thisdate' xtline calories, overlay xlabel(`mydates', format(%d_m_Y) ang(v)) See alsoSJ-7-4 gr0030 . Stata tip 55: Better axis labeling for timepoints/intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. J. Cox Q4/07 SJ 7(4):590--592 (no commands) tip on labeling graphs for time points and time intervals On Tue, May 24, 2011 at 4:45 AM, Maria Ana Vitorino <vitorino@wharton.upenn.edu> wrote:I have the following data: +------------------------+ | Person Weight Date | |------------------------| 1. | Name1 50 17988 | 2. | Name1 55 18110 | 3. | Name1 50 18141 | 4. | Name1 45 18171 | 5. | ... . . | |------------------------| 6. | Name2 85 18110 | 7. | Name2 88 18171 | 8. | Name3 68 17988 | 9. | ... . . | 10. | .. . . | |------------------------| 11. | NameN . . | +------------------------+ The labels for the date variables are the months' names (plus year) (e.g. "jan2006", "feb2007", etc) If I do something like: xtline Weight , overlay i(Person) t(Date) xlab(, valuelabel) The month names show up on the xaxis BUT only every 6 months or so. How can I control the number of "ticks" (AND month names ) that show up on the x-axis? (suppose I want a tick every 2 months or even every month)* * 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/ * * 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/

**Follow-Ups**:**RE: st: number of dates in x axis***From:*Nick Cox <n.j.cox@durham.ac.uk>

**References**:**st: number of dates in x axis***From:*Maria Ana Vitorino <vitorino@wharton.upenn.edu>

**Re: st: number of dates in x axis***From:*Nick Cox <njcoxstata@gmail.com>

**Re: st: number of dates in x axis***From:*Maria Ana Vitorino <vitorino@wharton.upenn.edu>

**RE: st: number of dates in x axis***From:*Nick Cox <n.j.cox@durham.ac.uk>

**Re: st: number of dates in x axis***From:*Maria Ana Vitorino <vitorino@wharton.upenn.edu>

**RE: st: number of dates in x axis***From:*Nick Cox <n.j.cox@durham.ac.uk>

**RE: st: number of dates in x axis***From:*Nick Cox <n.j.cox@durham.ac.uk>

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