saving . . . saved Installation of MASS Package has been deleted. Installation of MASS Package has been hidden .
Installation of MASS Package
Title
Question
message appear like

<pre class="GNKRCKGCGSB" id="rstudio_console_output" style="font-family: 'Lucida Console'; font-size: 10pt !important; outline: none; border: none; word-break: break-all; margin: 0px; -webkit-user-select: text; white-space: pre-wrap !important; line-height: 15px; color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: -webkit-left; text-indent: 0px; text-transform: none; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" tabindex="0"><span><span class="GNKRCKGCMRB ace_keyword" style="color: blue;">installed.packages("MASS") </span><span class="GNKRCKGCGSB" style="outline: none; border: none; word-break: break-all; margin: 0px; -webkit-user-select: text; white-space: pre-wrap !important;"> Package LibPath Version Priority Depends Imports LinkingTo Suggests Enhances License License_is_FOSS License_restricts_use OS_type Archs MD5sum NeedsCompilation Built</span></span></pre>

R Installing-R-and-RStudio-on-Windows 10-11 min 10-20 sec 02-04-20, 11:33 p.m. nnlokhande@gmail.com

Answers:

Please make sure you have a working Internet connection. You can also check whether MASS package is already installed by running the command installed.packages() or you can try loading MASS by library(MASS). 
02-04-20, 11:43 p.m. sudhakarst


Log-in to answer to this question.