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From |
jpitblado@stata.com (Jeff Pitblado, Stata Corp.) |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: |

Date |
Mon, 24 Feb 2003 12:33:43 -0600 |

Daniel Müller <d.mueller@agr.uni-goettingen.de> runs into a problem when trying to generate histograms for several variables: > I am plotting several variables to observe their > distributions. That works > well until graph number 23. Then I get below error message > (I am using Stata8/SE, WinXP). Here's the code: > > -----------start--- > . local vars "yiwrice3 ires32 iwealth3a xhhcred3 loganpk > logarice year2 > xethn3 secon3 logtravayr3 logcd_com logcd_dis avil aayr > herovil xhhric3 > xhh2wrice3 aaricehh3 xhh05ha3 logirri_ha logirriXyear2 > xhhmai3 logximtot32 > xhhsell3 logxhhhepa" > > . tokenize vars > > . foreach var of local vars { > 2. histogram `var', bin(10) frequency normal > name(`var', replace) > 3. } > > (bin=10, start=100, width=65) > <omitted> > (bin=10, start=.42857143, width=.05357143) > too many sersets > too many values > r(1001); > -----------end--- > > If I delete the variable where I get the error, Stata still > only produces 23 > graphs. > There are only 100 obs in the data. r(1001) tells that 'You > have attempted > to create a table that has too many rows or columns.' I > thought the max > number of rows and cols is unlimited in Stata SE. What is > wrong here? Nick Cox <n.j.cox@durham.ac.uk> then writes: > I wouldn't pay too much attention to the precise diagnostic. I guess r(1001) > is overloaded here. The remedy, I think, is to insert -discard- as the last > line of the -foreach- loop, to dump each serset. Daniel has hit an internal limit for graphs: the maximum number of sersets. Each graph contains at least one serset; basically a serset is set of data series that are being plotted. FYI: The -histogram- command with the -normal- option creates 2 serset. If Daniel is going to be managing many graphs (more than 15, say), I would recommend using the saving() option to save the graphs to disk. histogram `var', bin(10) frequency normal sav(`var', replace) ^^^ This way Daniel can look at a particular graph sometime later without having to rerun -histogram-. --Jeff jpitblado@stata.com * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

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