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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

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

Subject |
st: RE: re: combined Correlationmatrix Pearson and Spearman + LaTeX output |

Date |
Wed, 10 Dec 2008 13:55:28 -0000 |

-corrci- returns a matrix of Pearson correlations. Rank-transform everything beforehand, and you could use it to get a matrix of Spearman correlations. . search corrci SJ-8-3 pr0041 . Speaking Stata: Corr. with confidence, Fisher's z revisited (help corrci, corrcii if installed) . . . . . . . . . . . . N. J. Cox Q3/08 SJ 8(3):413--439 reviews Fisher's z transformation and its inverse, the hyperbolic tangent, and reviews their use in inference with correlations Nick n.j.cox@durham.ac.uk Kit Baum René said Is there a way to do pairwise Pearson AND Spearman Correlations in a single matrix, such as Pearson in the lower left and Spearman in the upper right traingle of the matrix? Provided, that is even possible. Is there a nice way to ouput such a correlation matrix to LaTeX? The following requires -outtable- from SSC (ssc install outtable) ------------------- capt prog drop corrmat *! corrmat CFB 2008dec09 prog corrmat version 10.1 syntax varlist(numeric) using/ qui spearman `varlist', pw tempname c mat `c' = r(Rho) local k: word count `varlist' forv i = 2/`k' { local f: word `i' of `varlist' forv j = 1/`=`i'-1' { local s: word `j' of `varlist' qui corr `f' `s' mat `c'[`i', `j'] = r(rho) } } outtable using `using', mat(`c') replace format(%9.4f) di _n "Spearman/Pearson correlations written to `using'.tex" _n end -------------------- Stupidly, -pwcorr- returns nothing useful in its return list---merely the correlation of the last variable with itself, which is predictably unity. Thus regular -corr- is used here, invoked pairwise to avoid listwise deletion due to missing values. To test, sysuse auto corrmat price mpg rep78 using testcorrmat type testcorrmat.tex * * 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/

**References**:**st: re: combined Correlationmatrix Pearson and Spearman + LaTeX output***From:*Kit Baum <baum@bc.edu>

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