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Trading On The Edge - CD-ROM Toolkit (Wayzata Technology)(2031)(1994).bin
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SPLICE.DOC
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1992-05-04
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The Bank Update Programs
There are two bank update programs: CSPLICE and HSPLICE. CSPLICE is the
original SPLICE program, while HSPLICE updates hashed G banks. Hashed banks
are now the standard data banks that I.E.R.F. creates and maintains. The
compression routines for hashed and compressed banks are essentially the same,
however, with the hashed banks we have added a far superior method of indexing
the data series.
Since the compression of both types of banks is so similar, the syntax
and usage for both bank update programs are essentially the same as well.
Therefore, what follows assumes one is using HSPLICE. If you wish to use
the original bank update program, simply substitute CSPLICE where HSPLICE
appears and read 'compressed,' where 'hashed' appears below.
Suppose you have just received new data for a bank you already have. How
can you correct or extend the bank without completely remaking it? If the
new data has come to you as a hashed bank -- as data from the University
of Maryland EconData service does -- then, at the DOS prompt, type
hsplice <old_hashbank> <new_hashed> <updated>
where old_hashbank, new_hashbank, and updated are the names of the old
hashed bank, the new hashed bank, and the updated hashed bank. The updated
bank will contain all data in either the old or the new bank, but the data in
"new" will replace that in "old" wherever both banks have a data point.