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From |
Nick Cox <[email protected]> |

To |
"[email protected]" <[email protected]> |

Subject |
Re: st: graphing median values against time |

Date |
Wed, 9 Apr 2014 16:30:39 +0100 |

set trace on set traced 1 and show us where it fails. (You might need a higher value than 1.) Nick [email protected] On 9 April 2014 15:58, Donald Spady <[email protected]> wrote: > I dont think that is the case. I used a Regex search in two different text editors to look for non-ASCII characters and came up with nothing. Besides, if there was a non-ascii char, would it not show up in the other commands, where I had not added the lcolor(black) bit. I have run it many times without that option and no problems. > > Don > > On Apr 9, 2014, at 8:06 AM, Nick Cox <[email protected]> wrote: > >> I'd check for strange characters. Copy your command line into a string >> variable and look for unusual ASCII characters with -charlist- (SSC) >> or any alternative of your choice. >> Nick >> [email protected] >> >> >> On 9 April 2014 14:25, Donald Spady <[email protected]> wrote: >>> Tim >>> After digesting your and Nick's advice I have used the lgraph command to good effect; however I have one problem. If I write: >>> foreach name in "cumten" "cumswol" { >>> igraph `name' following if visspell !=. & recnum == 1, by(aborig) label(0 3 9 15, lab size(tiny)) stat(mean) title("Mean `name' (Median:nonFN:Navy; FN:Gold)",size(small)) label(#10) also collapse((median) median = `name') addplot(line median following if aborig == 0, lcolor(dknavy) clwidth(thick)|| line median following if aborig == 1) >>> } >>> >>> everything works fine and I get pretty pictures. >>> >>> BUT if I write: >>> foreach name in "cumten" "cumswol" { >>> lgraph `name' following if visspell !=. & recnum == 1, by(aborig) label(0 3 9 15, lab size(tiny)) stat(mean) title("Mean `name' (Median:nonFN:Navy; FN:Gold)",size(small)) label(#10) also collapse((median) median = `name') addplot(line median following if aborig == 0, lcolor(dknavy) clwidth(thick)|| line median following if aborig == 1, lcolor(black)) >>> } >>> The only change is the addition of lcolor(black) at the end of the command. >>> >>> I get the message: >>> invalid 'title' >>> r(198) >>> >>> Why. And how do I fix it. >>> >>> Many thanks. >>> Don >>> >>> On Mar 30, 2014, at 8:43 PM, Timothy Mak <[email protected]> wrote: >>> >>>> <> >>>> Thanks Nick very much for helping to answer my question. >>>> >>>> To plot more than one summary statistics is a bit difficult, and you do have to use the -addplot- and the -alsocollapse- options. If you hadn't specified -by(aborig)-, then Nick's syntax would be almost right, except that you don't need the -if bvisittm1N- in the end, i.e. -addplot(line median bvisittm1N)- would do. However, because you have specified -by(aborig)-, you really need to do: >>>> >>>> addplot(line median bvisittm1N if aborig == 1 || line median bvisittm1N if aborig == 2) >>>> >>>> supposing your variable aborig has 2 levels (1,2). >>>> >>>> To understand the use of the -addplot- and the -alsocollapse- option a bit more, you may want to use the -nopreserve- option. This gives you the dataset that -lgraph- actually uses to plot your graph. Also, have a look at the macros `r(command)' and `r(options)'. This gives you the -twoway- syntax that lgraph uses on the collapsed data. Be sure to use command double quotes though when you display the macros, i.e.: >>>> >>>> di `"`r(command)'"' >>>> di `"`r(options)'"' >>>> >>>> I hope that helps. >>>> >>>> Tim >>>> >>>> >>>> -----Original Message----- >>>> From: [email protected] [mailto:[email protected]] On Behalf Of Nick Cox >>>> Sent: 31 March 2014 08:38 >>>> To: [email protected] >>>> Subject: Re: st: graphing median values against time >>>> >>>> You *must* specify a -twoway- subcommand, not -lgraph-, in the >>>> -addplot()- call. This is documented in the help for -addplot option-. >>>> >>>> I doubt very much that giving the same variable names as in the main >>>> call will do what you want. >>>> >>>> My second guess is that you need something more like >>>> >>>> alsocollapse((median) median=totend28) >>>> addplot(line median bvisittm1N if bvisittm1N) >>>> >>>> Nick >>>> [email protected] >>>> >>>> >>>> On 31 March 2014 01:29, Donald Spady <[email protected]> wrote: >>>>> Nick >>>>> I had tried various combinations of that command and could not get it to work. >>>>> >>>>> here is my command >>>>> .lgraph tottend28 bvisittm1N if bvisittm1N < 55, by(aborig) xlabel(0(3)54) stat(mean) alsocollapse((median)) addplot(lgraph tottend28 bvisittm1N if bvisittm1N <55, by(aborig)) >>>>> >>>>> It doesn't work. I get the error >>>>> lgraph is not a twoway plot type >>>>> r(198); >>>>> >>>>> Don >>>>> On Mar 30, 2014, at 5:14 PM, Nick Cox <[email protected]> wrote: >>>>> >>>>>> Timothy explains how to do that in the help. >>>>>> >>>>>> addplot(plot) This allows additional twoway plots to be plotted. >>>>>> See addplot_option. Note that >>>>>> because lgraph collapses the data before plotting in twoway, >>>>>> plots given in addplot(plot) >>>>>> should also refer to the collapsed data. Specify in >>>>>> alsocollapse(clist) any additional data >>>>>> that need to be collapsed. >>>>>> >>>>>> So, if you want median as well as mean you must specify >>>>>> >>>>>> alsocollapse(median) addplot(<whatever>) >>>>>> >>>>>> Note that nothing obliges you to use another -line- call. >>>>>> >>>>>> I haven't use -lgraph-, just looked at its help, but Timothy provides >>>>>> lots of functionality. >>>>>> Nick >>>>>> [email protected] >>>>>> >>>>>> >>>>>> On 30 March 2014 23:51, Donald Spady <[email protected]> wrote: >>>>>>> Timothy >>>>>>> I am using your -lgraph- command and wonder if it is possible to have TWO stats created (e.g. mean and median) for the same variable(s) at the same time. I want to plot both mean and median and cannot create an overlay to do so. >>>>>>> >>>>>>> Many thanks >>>>>>> Don >>>>>>> On Mar 28, 2014, at 1:29 AM, Timothy Mak <[email protected]> wrote: >>>>>>> >>>>>>>> The command -lgraph- that I wrote is for exactly this kind of problem if you don't want to create all the variables before plotting a graph. >>>>>>>> You can see it by typing: >>>>>>>> ssc des lgraph >>>>>>>> >>>>>>>> Tim >>>>>>>> >>>>>>>> -----Original Message----- >>>>>>>> From: [email protected] [mailto:[email protected]] On Behalf Of Donald Spady >>>>>>>> Sent: 28 March 2014 08:59 >>>>>>>> To: Statalist Statalist >>>>>>>> Subject: Re: st: graphing median values against time >>>>>>>> >>>>>>>> Nick >>>>>>>> It works. Just as I needed. Many thanks. >>>>>>>> John: That suggestion didn't work the way I wanted it to, but thanks for the idea. >>>>>>>> >>>>>>>> Don >>>>>>>> On Mar 27, 2014, at 5:48 PM, Nick Cox <[email protected]> wrote: >>>>>>>> >>>>>>>>> Sure. If you use -egen-'s -median()- and -mean()- functions to get the >>>>>>>>> variables you want, then it's any graph you want. >>>>>>>>> >>>>>>>>> As the median and mean values are repeated, don't plot them repeatedly. >>>>>>>>> >>>>>>>>> Here are some dopey examples. >>>>>>>>> >>>>>>>>> . webuse grunfeld >>>>>>>>> >>>>>>>>> . egen median = median(invest), by(year) >>>>>>>>> >>>>>>>>> . egen mean = mean(invest), by(year) >>>>>>>>> >>>>>>>>> . egen tag = tag(year) >>>>>>>>> >>>>>>>>> . line mean median year if tag >>>>>>>>> >>>>>>>>> For finer subdivisions, just use more variables as arguments to -by()-. >>>>>>>>> >>>>>>>>> Nick >>>>>>>>> [email protected] >>>>>>>>> >>>>>>>>> >>>>>>>>> On 27 March 2014 22:34, Donald Spady <[email protected]> wrote: >>>>>>>>>> Dear all >>>>>>>>>> I want to graph the median and mean values of a series of variables against a time variable (on the X axis) and with the option of stratifying the variables by another one (such as sex or disease state). I think I can do this by collapsing the data but is it possible to do this while retaining the data set in its 'original' state. I have searched the archives and the reference manuals but have not come up with anything that seems to be what I want. >>>>>>>>>> In many ways what I would like is a box plot with JUST the median (or mean) being plotted: no box, no outliers. Is that possible. >>>>>>>>>> >>>>>>>>>> Thanks >>>>>>>>>> Don >>>>>>>>>> * >>>>>>>>>> * 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/ >>>>>>>> >>>>>>> >>>>>>> >>>>>>> * >>>>>>> * 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/ >>>> >>>> * >>>> * 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/ * * 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/

**References**:**Re: st: graphing median values against time***From:*Donald Spady <[email protected]>

**Re: st: graphing median values against time***From:*Nick Cox <[email protected]>

**Re: st: graphing median values against time***From:*Donald Spady <[email protected]>

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