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digraph ICAdiagram {
/* LAYOUT CONTROL */
rankdir=LR
newrank=true
ranksep=0.75
clusterrank=local
/* GLOBAL STYLES */
splines=true
fontsize=20
fontname="Source Code Pro"
node [style="filled"
fontsize=18
fontname="Source Sans Pro"]
edge [arrowsize=1.2
penwidth=2.5
color="gray50"
fontsize=12
fontname="Source Code Pro"]
/* starting nodes */
sensor [label="Sensor data" shape="box" fillcolor="#bbbbbb"]
cov [label="Noise cov" shape="box" fillcolor="#bbbbbb"]
/* ICA.FIT() */
subgraph cluster_0 {
label="ICA.fit()"
color="#009988"
fontcolor="#009988"
penwidth=1.5
/* PRE-WHITENING */
subgraph cluster_1 {
label="Whitening"
style="dashed"
fontname="Source Sans Pro"
color="gray50"
fontcolor="gray50"
/* nodes & edges */
pre [label="Pre-\nwhiten" fontsize=11 shape="circle" fillcolor="#ee7733"]
pre -> pca
pca [label="PCA" shape="circle" fillcolor="#ee7733"]
pcs [label="Principal\ncomponents" shape="box" fillcolor="#33bbee"]
pca -> pcs
}
/* nodes & edges */
ica [label="ICA" shape="circle" fillcolor="#ee7733"]
ics [label="Independent\ncomponents" shape="box" fillcolor="#33bbee"]
ica -> ics [label="n_components\r"]
}
/* ICA.APPLY() */
subgraph cluster_2 {
label="ICA.apply()"
color="#ee3377"
fontcolor="#ee3377"
penwidth=1.5
/* ending node */
recon [label="Reconstructed\nsensor data" shape="box" fillcolor="#bbbbbb"]
}
/* subgraph-crossing edges */
sensor -> pre [label="all sensor channels\r" fontsize=14 fontname="Source Sans Pro"]
cov -> pre [label="covariance or std. dev.\r" fontsize=14 fontname="Source Sans Pro"]
pcs -> ica [label="n_components\l"]
ics -> recon [constraint=false color="#ee3377"
xlabel="Retained ICs:\ln_components -\llen(ICA.exclude)\l"]
pcs -> recon [constraint=false color="#ee3377"
xlabel="PCA residual:\ln_pca_components\l- n_components\l"]
/* position recon box where we want it */
{ rank="same" recon ica }
}
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