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This is an R HTML vignette. The file extension is *.Rhtml
, and
it has to include a special comment to tell R that this file needs to be
compiled by knitr:
<!-- %\VignetteEngine{knitr::knitr} %\VignetteIndexEntry{The Title of Your Vignette} -->
Now you can write R code chunks:
summary(cars)
## speed dist ## Min. : 4.0 Min. : 2 ## 1st Qu.:12.0 1st Qu.: 26 ## Median :15.0 Median : 36 ## Mean :15.4 Mean : 43 ## 3rd Qu.:19.0 3rd Qu.: 56 ## Max. :25.0 Max. :120
fit=lm(dist~speed, data=cars) summary(fit)
## ## Call: ## lm(formula = dist ~ speed, data = cars) ## ## Residuals: ## Min 1Q Median 3Q Max ## -29.07 -9.53 -2.27 9.21 43.20 ## ## Coefficients: ## Estimate Std. Error t value Pr(>|t|) ## (Intercept) -17.579 6.758 -2.60 0.012 * ## speed 3.932 0.416 9.46 1.5e-12 *** ## --- ## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 ## ## Residual standard error: 15.4 on 48 degrees of freedom ## Multiple R-squared: 0.651, Adjusted R-squared: 0.644 ## F-statistic: 89.6 on 1 and 48 DF, p-value: 1.49e-12
You can also embed plots, for example:
par(mar=c(4,4,.1,.1)) plot(cars, pch=19)
For package vignettes, you need to encode images in base64 strings using the
knitr::image_uri()
function so that the image files are no longer
needed after the vignette is compiled. For example, you can add this chunk in
the beginning of a vignette:
library(knitr) # to base64 encode images opts_knit$set(upload.fun = image_uri)
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.