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# Source: http://stackoverflow.com/q/7549694/857416 | |
lm_eqn = function(m) { | |
# Displays regression line equation and R^2 value on plot | |
# Usage: | |
# p + annotate("text", x=25, y=300, label=lm_eqn(lm(y ~ x, df)), parse=TRUE) | |
l <- list(a = format(coef(m)[1], digits = 2), | |
b = format(abs(coef(m)[2]), digits = 2), | |
r2 = format(summary(m)$r.squared, digits = 3)); |
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# ===== # | |
library(kohonen) | |
# Load data, available at https://gist.github.com/ottadini/6068259 | |
somdata <- read.csv("somdata.csv") | |
# Create SCALED test and training sets from data: | |
inTrain <- sample(nrow(somdata), nrow(somdata)*(2/3)) | |
training <- scale(somdata[inTrain, ]) |
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MEAS_TC | SP | LN | SN | GR | NEUT | |
---|---|---|---|---|---|---|
2.78 | 59.1810903609045 | 33.7436448559876 | 19.7536103778765 | 66.5766474766635 | 257.0368012729 | |
1.49 | 49.0477497329406 | 184.145977437229 | 139.079797489143 | 54.7505195826885 | 326.800134003894 | |
1.49 | 49.1289016073479 | 183.588534123696 | 138.027677512105 | 55.5411398043229 | 327.473945839365 | |
2.201275709 | 18.2403310337942 | 19.2038626516248 | 10.7474792741976 | 62.0449186292617 | 494.416136250187 | |
2.201275709 | 18.2155224379773 | 19.1800937852543 | 10.7244616233215 | 61.8744774871462 | 494.740941830979 | |
1.276476312 | 9.33776939549743 | 14.1606094244497 | 19.0690215694105 | 14.9961159237259 | 363.002021309839 | |
1.276476312 | 9.30627807118255 | 14.1655436529726 | 19.0953021764089 | 15.0205158738082 | 363.592835920731 | |
2.4162441005 | 65.9385510407827 | 11.5964588279339 | 13.1929031148605 | 43.785062332152 | 142.583172944641 | |
2.4162441005 | 66.2962310687366 | 11.5462659711476 | 13.1725547197125 | 43.607290645435 | 142.672765831378 |
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