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help for _mrsvmat
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Post-mrtab utility


        _mrsvmat [ , stat(statname) rtotal ctotal nopercent nolabel clear ]

    where statname is { freq | column | row | cell | rcolumn | rcell }


Description

    _mrsvmat can be used after mrtab to create a data matrix from the results
    left behind (note that the data in memory will be lost). Do not use
    _mrsvmat unless you are confident that mrgraph does not meet your needs.

    Each row of the data created by _mrsvmat will represent one response
    category. The variables are:

        R           Values/names of the response categories.

        L           Labels of the response categories (if available).

        C1, C2, ... Frequencies. Each variable represents one column of the
                    two-way frequency table. In the case of one-way tables,
                    just one variable, C1, will be created.

        T           Row totals (optionally).


Options

    clear allows _mrsvmat to clear the data in memory without asking for
        confirmation.

    ctotal specifies that column totals be saved.

    nolabel specifies that labels be ignored.

    nopercent specifies that relative frequencies be formatted as proportions
        (.271) rather than percentages (27.1).

    rtotal specifies that row totals be saved.

    stat(statname) determines the statistic to be saved. statname is either
        freq for raw frequencies or column (base: column total of
        observations), row (base: row total), cell (base: grand total of
        valid observations), rcolumn (base: column total of responses), or
        rcell (base: grand total of responses) for relative frequencies.
        stat(freq) is the default.


Example

        . use http://fmwww.bc.edu/RePEc/bocode/d/drugs.dta
        (1997 Survey Data on Swiss Drug Addicts)

        . mrtab crime1-crime5, include response(2 3) by(sex) nofreq
        
        . preserve
        
        . _mrsvmat, stat(column) ctotal rtotal clear
        
        . list, clean string(20)
        
                    R   L                              C1         C2          T
>  
          1.   crime1   hit someone              14.46281   14.15663   14.23841
>  
          2.   crime2   use a weapon against..   1.652893   3.313253   2.869757
>  
          3.   crime3   sexual harassment, r..   12.80992          0   3.421633
>  
          4.   crime4   robbery (including d..   13.22314   9.939759   10.81678
>  
          5.   crime5   blackmail                5.785124   2.108434   3.090508
>  
          6.        T   Total                    47.93388   29.51807   34.43708
>  

        . generate x=_n
        
        . scatter C1 C2 x in 1/5, xtitle(Type of crime) ytitle(Percent)
           title(Criminal experiences (as a victim))
        

Author

    Ben Jann, ETH Zurich, jann@soz.gess.ethz.ch


Also see

    Manual:  [P] matrix mkmat