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| ### Plots | |
| x <- seq(0, 4, 0.1) | |
| y <- cos(x) | |
| plot(x, y, col=rainbow(12)) # 2-RED, 3-GREEN, 4-BLUE | |
| a <- c(5, 8, 3); names(a)<- c("England", "France", "Norway"); barplot(a) | |
| abline(h, v, lty=3, col="lightgray") | |
| barplot(sin(seq(0, 4, 0.1))) | |
| qplot(Xvect, Yvects) | |
| qplot(weights, prices, col=factor(types)) | |
| abline(lm(X~Y)) | |
| summary(lm(Y~X)) | |
| ### Matrixes | |
| mx <- matrix(DATA, N, M) | |
| matrix(1, 3, 4) | |
| matrix(1:12, 3, 4) | |
| dim(mx) | |
| mx[RowNum,] / mx[,ColNum] | |
| mx[RowNum, ColNum] <- "VAL" / mx[RowNum:RowNum+N, ColNum] <- "VAL" | |
| ### Matrixes-Vis | |
| persp(px, expand=0.2) | |
| contour(volcano) | |
| image(mx) | |
| ### Statstics | |
| mean, median, sum | |
| deviation <- sd(pounds) | |
| abline(h = meanValue + deviation) | |
| ### Files | |
| list.files() | |
| read.table("FILEPATH.txt", sep="\t", header=TRUE) | |
| read.csv("FILEPATH.csv") | |
| merge(OneList, OtherList) | |
| ### Books | |
| - http://www.cookbook-r.com | |
| - http://www.r-tutor.com | |
| # http://nsaunders.wordpress.com/2010/08/20/a-brief-introduction-to-apply-in-r/ | |
| lapply | |
| sapply | |
| apply | |
| tapply | |
| mapply |
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