[Limdep Nlogit List] Read matrix / sample statistics of matrix columns

Steven Yen syen at utk.edu
Fri Nov 5 08:01:14 EST 2010


Dear

Page R12-44 of the Reference Guide suggests a way to read a matrix as 
a data file. I could not read a matrix properly; see error message below.

What I need is to calculate sample means and standard deviations for 
each column of a matrix. Is there a convenient way to do this? Thanks.

----

--> calc   ;nr=5 ;nc=3 $
--> matrix ;list ;myx=rndm(nr,nc) $

Matrix MYX      has  5 rows and  3 columns.
                1             2             3
         +-------------+-------------+-------------+
        1|    -.10830       .97037       .22962
        2|    -.71564       .95221     -1.13377
        3|    -.49604      -.24165      -.27317
        4|     .50904      -.98409     -2.31595
        5|    -.14872     -1.35394      1.01877
         +-------------+-------------+-------------+
--> read   ;rows=10 ;cols=5 ;matrix=myx $
   Error     9: READ - error or end of file occurs while reading data set.
   Error   327: Closing command file to prevent reading data as command



Steven T. Yen
http://web.utk.edu/~syen/
Check out our postdoc opening at:
http://web.utk.edu/~syen/postdoc.html


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