title: Unknown or uninitialised column: ; object not found
body: <p>This question has been asked before but no answers have worked for me. I'm trying to upload my data frame into R from excel but R keeps leaving two columns out. When I input &quot;variable&quot; I get the error object &quot;variable&quot; not found and when I input &quot;data.frame$variable&quot; I get the warning message unknown or uninitialized column: 'variable'. Does anyone know why R isn't reading my whole data set?</p>