Displaying 3 results from an estimated 3 matches for "stepmod".
2005 Jan 14
1
Colors and legend on a scatterplot?
...rcome the 2 problems
1.Defining my own color scale for a value on a scatterplot
2.Adding legend showing values for colours
I have a set of points in area of my research with coordinates X and Y and
a value which I would like to show with colors.
#values for points are residuals from regression
stepmod = step(wmodzad, direction="both")
#I am adding residuals to original data to get coordinates for residuals
expzad = cbind(zadrz, residuals(stepmod))
#I want to have colors for classes defined as standard deviation from mean
std = sd(residuals(stepmod))
mn = mean(residuals(stepmod))
s...
2007 Dec 19
0
leaps
...ot;,1:nfr,"]",collapse="+")
xnam2 <- NULL
xnam2 <- paste(sep="","sinmat[,",1:nfr,"]",collapse="+")
fmla <- as.formula(paste("yy ~ ", paste(xnam1,"+",xnam2,sep="")))
FTmod <- lm(fmla)
stepmod <- step(FTmod, direction="both")
summary(stepmod)
*Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 0.237808 0.008728 27.248 < 2e-16 ***
cosmat[, 1] -1.011932 0.012390 -81.675 < 2e-16 ***
cosmat[, 2] -0.417265 0.012329 -33.844 <...
2007 Dec 18
0
R command "leap"
...I came up
with the following showing there still are some non significant
coefficients.
I'd like to try the command "leap". However, I don't quite understand how it
returns the spared predicting variables.
Can please, someone help ?
Tank you in advance.
Mara EM
> summary(stepmod)
Call:
lm(formula = yy ~ cosmat[, 1] + cosmat[, 2] + cosmat[, 3] + cosmat[,
4] + cosmat[, 5] + cosmat[, 6] + cosmat[, 7] + cosmat[, 8] +
cosmat[, 9] + cosmat[, 11] + cosmat[, 12] + cosmat[, 15] +
cosmat[, 16] + cosmat[, 17] + cosmat[, 22] + cosmat[, 25] +
cosmat[, 29] + cosmat[, 30...