r - getting error: invalid argument to unary operator -


originally, had code written below except forecasttext <- 0 kept receiving error: object not found. defined forecastext 0.

now i'm gettin error: error in -html_text(forecasthtml) : invalid argument unary operator

any solutions? 

install.packages("rvest") library (rvest)  forecasttext <- 0  weatherlink <- read_html("http://forecast.weather.gov/mapclick.php? lat=36.11479000000003&lon=-115.17280999999997#.wxfqrdpyte4")  forecasthtml <- html_node(weatherlink, "#detailed-forecast div:nth-                           child(1) :nth-child(1)")  forecasttext < - html_text (forecasthtml) 

forecasttext < - html_text (forecasthtml)

should be

forecasttext <- html_text (forecasthtml)

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