faqindex.idx

\indexentry{Are there any resources to support the \emph  {Learn R: As a Language} book?}{21}
\indexentry{How to install the \textsf  {R} program in my computer?}{21}
\indexentry{How to install the \textsf  {RStudio} IDE in my computer?}{21}
\indexentry{How to get access to \textsf  {RStudio} as a cloud service?}{21}
\indexentry{How to create an empty vector?}{29}
\indexentry{How to create a vector of zeros?}{30}
\indexentry{How to find the length of a character string?}{42}
\indexentry{How to wrap long character strings?}{42}
\indexentry{How to create a single character string from multiple shorter strings?}{43}
\indexentry{How to trim leading and/or trailing whitespace in character strings?}{44}
\indexentry{How to test if a vector contains no values other than \texttt  {\addfontfeature {Scale = 0.89}{\setlength  {\fboxsep }{0.05pt}\colorbox {codeshadecolor}{NA\vphantom  {tp}}}} (or \texttt  {\addfontfeature {Scale = 0.89}{\setlength  {\fboxsep }{0.05pt}\colorbox {codeshadecolor}{NaN\vphantom  {tp}}}}) values?}{51}
\indexentry{How to test if a vector contains one or more \texttt  {\addfontfeature {Scale = 0.89}{\setlength  {\fboxsep }{0.05pt}\colorbox {codeshadecolor}{NA\vphantom  {tp}}}} (or \texttt  {\addfontfeature {Scale = 0.89}{\setlength  {\fboxsep }{0.05pt}\colorbox {codeshadecolor}{NaN\vphantom  {tp}}}}) values?}{52}
\indexentry{How to access the last value in a vector?}{65}
\indexentry{How to drop unused levels in a factor?}{81}
\indexentry{How to convert a factor into a vector with matching values?}{81}
\indexentry{How to create an empty list?}{87}
\indexentry{How to create an empty data frame?}{96}
\indexentry{How to make a list of data frames?}{96}
\indexentry{How to add a new column to a data frame (to the front and end)?}{97}
\indexentry{How to summarise one variable from a data frame by group?}{106}
\indexentry{How to summarise numeric variables from a data frame by group?}{106}
\indexentry{How to order columns or rows in a data frame?}{108}
\indexentry{How to install or update a package from CRAN?}{180}
\indexentry{How to install or update a package from GitHub?}{181}
\indexentry{How to change the repository used to install packages?}{182}
\indexentry{How to use an installed package?}{182}
\indexentry{How to find the currently installed version of a package?}{182}
\indexentry{How to sample random rows from a data frame?}{194}