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blfsplit - split ERP bin list file bins into multiple single trial bins


blfsplit oldBLF newBLF bin# [bin#...] [-f] [-q]


blfsplit Creates a new Bin List File (BLF) from an existing Bin List File by splitting requested bins into multiple bins, each having only one trial. Only the specified bins are split up, all others are simply copied to newBLF. The typical use would be for Item Analysis, where you average raw events across subjects.

oldBLF is the name of an existing Bin List File. newBLF is the name of the Bin List File to be created. The bin#s can be any bin number from the oldBLF file, or a range of bin numbers (e.g. 10-20). The bin description for those bins that are split up by blfsplit is prepended with a number in parentheses indicating which ordinal event from the original Bin List File is to be placed in that bin. For example, if the oldBLF had a bin with five events, and the bin description "high standards", and blfsplit was used to split that bin up, then the newBLF would have five bins with one event each in place of the original bin, and the new bin descriptions for these five bins would be, "(1) high standards", (2) high standards", "(3) high standards", "(4) high standards", and "(5) high standards".

After creating the newBLF, blfsplit prints a summary of its contents. This summary is divided into one section for each Condition Code, and is intended to be self-explanatory. The summary, by the way, is identical to the output of the blfinfo program.


Force the creation of newBLF even if it already exists. Without the -f blfsplit will prompt the user for overwrite permission if newBLF already exists.
Quiet option. Suppress printing of the normal summary output.

See Also

blfinfo(1) , cdbl(1) , normerp(1) , avg(1)


blfsplit attempts to note any problems with the original oldBLF, and prints the line number followed by a descriptive error message if problems are encountered.


None yet reported.


Ron Ohst

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