hview - quick preview of html output in the rstudio viewer pane

Sometimes, you want to quickly check what the html output of xtable or similar function will look like in your markdown code, but you don't want to open up a new markdown document. Right from the console, you can create a temp html file, put the output in and view it in the viewer pane. This way you can quickly look at model output in that pane, as opposed to on the console.

require(xtable)

## Loading required package: xtable

hview = function(htmllines) {
    htmlFile <- tempfile(fileext = ".html")
    writeLines(htmllines, htmlFile)
    rstudio::viewer(htmlFile)
}

data(tli)
fm2 <- lm(tlimth ~ sex * ethnicty, data = tli)
fm2.table <- xtable(fm2)

print(fm2.table, type = "html")

	Estimate	Std. Error	t value	Pr(&gt |t|)
(Intercept)	73.6364	4.2502	17.33	0.0000
sexM	-1.6364	5.8842	-0.28	0.7816
ethnictyHISPANIC	-9.7614	6.5501	-1.49	0.1395
ethnictyOTHER	15.8636	10.8360	1.46	0.1466
ethnictyWHITE	4.7970	4.9687	0.97	0.3368
sexM:ethnictyHISPANIC	10.6780	8.7190	1.22	0.2238
sexM:ethnictyWHITE	5.1230	7.0140	0.73	0.4670

hview(print(fm2.table, type = "html"))```