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

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

Subject |
st: AW: Problematic twoway lineplot with -by- |

Date |
Thu, 13 Aug 2009 15:09:19 +0200 |

<> ************* // Create dataset clear* set obs 40 gen id = int((_n-1)/10)+1 gen group = (id>=3) + 1 bysort id: gen time = _n replace time = time -.5 if id == 4 gen value = uniform() bysort id (time): replace value = /* */ value[_n-1] + uniform() if _n > 1 separate value if group==1, by(id) tw (line value1 time if group==1, sort) /* */ (line value time if group==2, sort), /* */ legend(off) nodraw graph rename graph1 tw (line value2 time if group==1, sort) /* */ (line value time if group==2, sort), /* */ legend(off) nodraw graph rename graph2 gr combine graph1 graph2, rows(1) ************* HTH Martin -----Ursprüngliche Nachricht----- Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Steinar Fossedal Gesendet: Donnerstag, 13. August 2009 14:56 An: statalist@hsphsun2.harvard.edu Betreff: st: Problematic twoway lineplot with -by- Hi, listers I'm trying to create a twoway graph using two line graphs, and have it split into groups using -by- _on_only_one_of_the_graphs_. I'm finding this a bit tricky to pull off, and I've cooked up an example below which illustrates the problem. My goal is to have graph 2 included on each of the plots in graph 1, resulting in a graph with two plots having two lines each. Instead, I get a graph with four plots in it, and only a single line per plot. Is there any way to produce the graph that I want without rearranging my data? Hope you can help, -Steinar Example : // Create dataset clear set obs 40 gen id = int((_n-1)/10)+1 gen group = (id>=3) + 1 bysort id: gen time = _n replace time = time -.5 if id == 4 gen value = uniform() bysort id (time): replace value = value[_n-1] + uniform() if _n > 1 // Create plots // Graph 1 (using by) twoway (line value time if group==1, sort by(id)) graph rename graph1 // Graph 2 (not using by) twoway (line value time if group==2, sort) graph rename graph2 // Graph 3 (Attempt to merge the two graphs together, getting graph 2 on each of the plots in graph 1) twoway (line value time if group==1, sort by(id)) (line value time if group==2, sort) graph rename graph3 * * 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**:**st: AW: AW: Problematic twoway lineplot with -by-***From:*"Martin Weiss" <martin.weiss1@gmx.de>

**References**:**st: Problematic twoway lineplot with -by-***From:*Steinar Fossedal <steinar.fossedal@gmail.com>

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