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From |
"Pieter-Jan" <duikerarts@home.nl> |

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

Subject |
st: multiple CI/mean plots in one graphic |

Date |
Thu, 28 Apr 2011 19:33:23 +0200 |

Dear Statalisters, Recently we performed a randomized crossover study in which we monitored the lung function of a group of volunteers during three days. Day 1 was used to determine baseline lung function whereas day 2 and 3 were used to monitor lung function after inhaling either placebo (air) or active gas (oxygen) under hyperbaric condition. During each measurement day lung function was measured 6 times. All variables and observations were put in a dataset which initially had the following format: ID Group Time Variable1 etc 1 0 0 6.19 2 0 0 5.97 Etc ID exist of 13 persons Group: 0 (baseline), 1 (placebo), 2 (active) Time: 0, 2, 4, 8, 12, 22 hours after exposure To give the reader a good overview how f.e. variable 1 changes over time within the 3 groups I want to plot the CI and mean of each group on each time point in one graphic. I tried civplot Civplot variable1, by(time) But that gives me no separate plots of the three groups. I tried to change the dataset by deleting the group variable and changing the Variable1 etc as follows ID Time Variable1_baseline Variable1_placebo Variable1_active etc 1 0 6.19 6.01 6.11 2 0 5.97 6.05 5.91 Civplot variable1_baseline, by(time) This allows me only 1 civplot for each variable but just like the first attempt this gave me only 1 plot per graphic. I tried also twoway Twoway (scatter variable1_baseline time) (fpfit variable1_baseline time) (scatter variable1_placebo time) (fpfit variable1_placebo time) (scatter variable1_active time) (fpfit variable1_active time) And this gives the possibilities of putting multiple plots in one graphic but specially the scatter makes it cluttered. A simple CI/mean would counteract this. Is there a possibility in Stata of putting multiple CI/mean plots into one graphic? Maybe the answer speaks for itself but I am rather new into Stata that's why I asking this question. Many thanks, Pieter-Jan van Ooij * * 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: multiple CI/mean plots in one graphic***From:*Nick Cox <njcoxstata@gmail.com>

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