PLOT_SELECT(1)

NAME
plot_select - Plot program for results of a LNKnet feature search.

SYNOPSIS
Plots error rate vs feature added for nearest neighbor classifiers chosen by the feature search program feat_sel.

plot_select [ -pathexp directory ] [ -fparam file ]
[ -fplot file ] [ -title string ] [ -autoscale ]
[ -xmin x ] [ -xmax x ] [ -xstep x ] [ -ymin x ]
[ -ymax x ] [ -ystep x ] [ -mac ] [ -fmaclines file ]

EXAMPLE
This experiment does a backwards feature search for the data base gnoise_var and then plots the results.

feat_sel -pathexp ./ -fparam gnoise_var.back.N.param \
-pathdata $LNKHOME/data/class -finput gnoise_var.train \
-fdescribe gnoise_var.defaults -npatterns 200 -search_type 1

plot_select -pathexp ./ -fparam gnoise_var.back.N.param \
-fplot gnoise_var.select.plot -autoscale

OPTIONS

--  Prints a list of all flags and arguments.

-pathexp directory
    Directory where fparam and fplot are stored.

-fparam file
    Parameter file being plotted. Generated by feature search program feat_sel.

-fplot file
    File for storing plot.

-autoscale
    If this flag is set, the values in the parameter file fparam will be used to set the scales for the X and Y axes.

-xmin x
    If autoscale is not set, the lower limit of the features axis for the plot.

-xmax x
    If autoscale is not set, the upper limit of the features axis for the plot.

-xstep x
    If autoscale is not set, the space between tic marks on the features axis for the plot.

-ymin x
    If autoscale is not set, the lower limit of the error rate axis for the plot.

-ymax x
    If autoscale is not set, the upper limit of the error rate axis for the plot.

-ystep x
    If autoscale is not set, the space between tic marks on the error rate axis for the plot.

-title string
    Title for plot.

-mac
    If this flag is set, the points in the plot will be written to the file -fmaclines.

-fmaclines
    file This is an ASCII file containing the data used to create the feature search plot. Each line contains the feature number followed by the corresponding nearest neighbor error rate. This file can be used to generate plots on a MacIntosh or other PC using a spread-sheet graphing program such as Excel or DeltaGraph.

SEE ALSO
feat_sel(1), bintree_feat_sel(1), cknn_feat_sel(1), gauss_feat_sel(1), gmix_feat_sel(1), knn_feat_sel(1), irbf_feat_sel(1), mlp_feat_sel(1), rbf_feat_sel(1), nc_class_feat_sel(1), hyper_feat_sel(1), lvq_feat_sel(1)

HISTORY
First written 5 July 1993 by Linda Kukolich
Modified 22 June 1994, took out line_type

BUGS
Send bug reports to Linda Kukolich (kukolich@sst.ll.mit.edu)