* the following SAS statements will read in a correlation matrix
  and create a special SAS data set. These correlational data are
  the clinical scales of the Minnesota Multiphasic Personality
  Inventory (MMPI) taken from Hathaway and McKinley (1940),
  A multiphasic personality schedule (minnesota): I, Construction
  of the schedule. Journal of Psychology, 10, 249-254. The matrix
  for 225 normal male adults is on MMPIM.DAT and the
  matrix for 315 normal female adults is on MMPIF.DAT;
DATA MMPIF(TYPE=CORR);
* the (TYPE=CORR) option after the SAS data set specifies that this
  is a special SAS data set consisting of a correlation matrix. There
  are other special types of SAS data sets such as TYPE=COV for a
  covariance matrix, TYPE=SSCP for a sum of squares and cross products
  matrix, and TYPE=FACTOR for a series of matrices used in factor
  analysis;;
IF _N_=1 THEN _TYPE_ = 'N     '; ELSE _TYPE_='CORR';
INPUT _NAME_ $8. L F K Hs D Hy Pd Pa Pt Sc Ma SI;
* the variables _TYPE_ and _NAME_ are special SAS variables required
  for a TYPE=CORR data set. Both variables are alphanumeric--i.e.,
  the computer does not look at them as numbers. _TYPE_ indicated the
  type of statistic, in this case a correlation coefficient. _NAME_
  gives the name of the variable;
LABEL L='Lie'
      F='F'
      K='K'
      Hs='Hypochondriasis'
      D='Depression'
      Hy='Hysteria'
      Pd='Psychopathic deviate'
      Pa='Paranoia'
      Pt='Psychasthenia'
      Sc='Schizophrenia'
      Ma='Hypomania'
      SI='Social Introversion';
DATALINES;
     df    315   315   315   315   315   315   315   315   315   315   315   315
      L   1.00  -.24   .40  -.12  -.01   .12  -.17  -.13  -.40  -.37  -.26  -.10
      F   -.24  1.00  -.34   .49   .34   .22   .52   .49   .59   .76   .43   .27
      K    .40  -.34  1.00  -.34  -.08   .29  -.26  -.14  -.66  -.58  -.40  -.43
      Hs  -.12   .49  -.34  1.00   .56   .63   .35   .33   .60   .58   .19   .39
      D   -.01   .34  -.08   .56  1.00   .49   .35   .27   .56   .39  -.13   .60
      Hy   .12   .22   .29   .63   .49  1.00   .23   .28   .17   .15  -.04   .04
      Pd  -.17   .52  -.26   .35   .35   .23  1.00   .45   .53   .62   .47   .22
      Pa  -.13   .49  -.14   .33   .27   .28   .45  1.00   .44   .52   .28   .23
      Pt  -.40   .59  -.66   .60   .56   .17   .53   .44  1.00   .83   .35   .63
      Sc  -.37   .76  -.58   .58   .39   .15   .62   .52   .83  1.00   .56   .46
      Ma  -.26   .43  -.40   .19  -.13  -.04   .47   .28   .35   .56  1.00  -.13
      SI  -.10   .27  -.43   .39   .60   .04   .22   .23   .63   .46  -.13  1.00
;
RUN;
TITLE 'Hathaway and McKinley MMPI Correlation Matrices';
TITLE2 'Females';
PROC PRINT;
PROC FACTOR DATA=MMPIF  ROTATE=PROMAX;
RUN;

* - Now lets do the same for Males;
DATA MMPIM(TYPE=CORR);
IF _N_=1 THEN _TYPE_ = 'N     '; ELSE _TYPE_='CORR';
INPUT _NAME_ $8. L F K Hs D Hy Pd Pa Pt Sc Ma SI;
LABEL L='Lie'
      F='F'
      K='K'
      Hs='Hypochondriasis'
      D='Depression'
      Hy='Hysteria'
      Pd='Psychopathic deviate'
      Pa='Paranoia'
      Pt='Psychasthenia'
      Sc='Schizophrenia'
      Ma='Hypomania'
      SI='Social Introversion';
DATALINES;
     df   225   225   225   225   225   225   225   225   225   225   225   225
      L   1.00  -.02   .45  -.04   .17   .24  -.12  -.01  -.31  -.20  -.10  -.12
      F   -.02  1.00  -.31   .38   .31   .08   .51   .56   .55   .79   .51   .24
      K    .45  -.31  1.00  -.35  -.04   .38  -.22  -.16  -.69  -.60  -.42  -.48
      Hs  -.04   .38  -.35  1.00   .60   .53   .38   .35   .60   .53   .15   .44
      D    .17   .31  -.04   .60  1.00   .45   .34   .35   .48   .37  -.10   .47
      Hy   .24   .08   .38   .53   .45  1.00   .20   .21  -.01  -.01  -.17  -.04
      Pd  -.12   .51  -.22   .38   .34   .20  1.00   .44   .52   .59   .45   .21
      Pa  -.01   .56  -.16   .35   .35   .21   .44  1.00   .52   .61   .33   .19
      Pt  -.31   .55  -.69   .60   .48  -.01   .52   .52  1.00   .84   .38   .63
      Sc  -.20   .79  -.60   .53   .37  -.01   .59   .61   .84  1.00   .59   .46
      Ma  -.10   .51  -.42   .15  -.10  -.17   .45   .33   .38   .59  1.00  -.06
      SI  -.12   .24  -.48   .44   .47  -.04   .21   .19   .63   .46  -.06  1.00
;
RUN;
TITLE 'Hathaway and McKinley MMPI Correlation Matrices';
TITLE2 'Males';
PROC PRINT;
PROC FACTOR DATA=MMPIF  ROTATE=PROMAX;
RUN;