Purpose:
Create numeric vectors from columns in file or list of vecs.
Description:
The vec tool creates numeric vectors that can be extracted, written to files, or imported into other tools like plotview for plotting.
The vec constructor takes either a file or list argument. For a file argument, columns of numeric data are read from the file. Blank lines or lines that do not start with a numeric character (0123456789.-) are skipped. Each column must have the same number of values. For a list argument, each element of the list is assumed to be a vector of values (i.e. the list is a list of lists), as shown in the example below.
The columns of data may be accessed by number (1-N) or by name ("col1" thru "colN").
The get() and write() methods extract the numeric vectors of data.
Usage:
v = vec("file1") read in numeric vectors from a file
v = vec(array) array = list of numeric vectors
skip blank lines and lines that start with non-numeric characters example array with 2 vecs = [[1,2,3,4,5], [10,20,30,40,50]] assigns names = "col1", "col2", etc
nvec = v.nvec # of vectors
nlen = v.nlen lengths of vectors
names = v.names list of vector names
x,y,... = l.get(1,"col2",...) return one or more vectors of values
l.write("file.txt") write all vectors to a file
l.write("file.txt","col1",7,...) write listed vectors to a file
get and write allow abbreviated (uniquely) vector names or digits (1-Nvec)
Related tools:
Prerequisites: none