Comandi generali:

Comandi generali:

read.table("clipboard", header=TRUE); scan("clipboard"); require() (es. rgl, cluster);

library(”) (es. datasets); for (n in k:h){}

c(a,...,z); 1:n; seq(a,b,h); round(); length(); sort()

matrix(nrow=n,ncol=m); A[,k]; A[k,]; X[n:m] ecc.; A[-k,]; A[,c(i,j)]; as.matrix(); head() colnames(A)=c("a","b"); TAB$col

ts(X, frequency=n, start=c(,), end=c(,)); window(X, start=c(,), end=c(,))

plot(X,Y); plot(X,col="red", type="z"; lwd="r", asp=n); plot(X,predict(Y)); ts.plot();

lines(); par(mfrow=c(n,m)); abline(lm(Y~X),col="red"); abline(h=r); abline(a, b);

abline(coef(W) ,col="red"); curve(, from=, to=, add=TRUE, col=); text(,labels=as.character(row.names()));

plot3d(X,Y,Y,box=FALSE); scatterplot3d; scatterplot3d(X, Y, Z); scatterplot3d(X,

Y, Z, pch=row.names(B), type="h"); axes3d(c(’x’,’y’,’z’),pos=c(0,0,0),labels=FALSE,tick=FALSE,col=) Comandi generici di matematica:

+, -, *, /, %*%

exp(), log(), sqrt(), sin(), cos(), sign(), pi t(); solve(); diag() eigen(); $vectors; $values

Comandi di tipo statistico:

rnorm(); dnorm(); pnorm(); qnorm(); rnorm(n,m,s) ecc.; runif (n, min = a, max = b)); plogis(); quantile(X,p)

hist(); hist(X,n); hist(,freq=FALSE); ecdf (); mean(); sd(); cor(X,Y); cov(); cor();

acf (); acf (X,n); ccf (X,Y); qqnorm(); cumsum();

lm(Y~X1+...); lm(Y~X1+..., data=A); $coe¢ cients[]; $coef; predict(); …tted(); resid- uals(); coef (); summary(); princomp(); loadings(); $loadings; $sdev; predict(); bi- plot(); pam(); glm(,family = binomial,); predict(type="response")

decompose(); type="multiplicative"; stl(X,k); decompose()$seasonal; decompose()$trend;

decompose()$random; stl(X,k)$time.series[,]

; HoltWinters(X, alpha =a, beta =b, gamma

= FALSE); predict(X,n); residuals(); $SSE

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Dall’help di a R:"a multiple time series with columns seasonal, trend and remainder."

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