Vielen Dank für die Rückmeldung :)
Leider komme ich auch damit nicht weiter...
Wenn ich meine Daten mittels str () prüfe werden nur diese Werte angezeigt.
> str(rdata_tutorial160242_2019.05.07_20.45)
'data.frame':    94 obs. of  53 variables:
 $ V1 : Factor w/ 94 levels "100","101","102",..: 94 39 40 41 42 43 44 45 46 47 ...
 $ V2 : Factor w/ 2 levels "","SERIAL": 2 1 1 1 1 1 1 1 1 1 ...
 $ V3 : Factor w/ 2 levels "","REF": 2 1 1 1 1 1 1 1 1 1 ...
 $ V4 : Factor w/ 2 levels "Bachelorarbeit",..: 2 1 1 1 1 1 1 1 1 1 ...
 $ V5 : Factor w/ 2 levels "interview","MODE": 2 1 1 1 1 1 1 1 1 1 ...
 $ V6 : Factor w/ 94 levels "2019-04-06 20:02:49",..: 94 1 2 3 4 5 6 7 8 9 ...
 $ V7 : Factor w/ 3 levels "-1","-2","AP01": 3 1 2 2 2 2 1 2 2 2 ...
 $ V8 : Factor w/ 6 levels "1","2","3","4",..: 6 4 4 2 2 4 5 2 2 4 ...
 $ V9 : Factor w/ 8 levels "1","2","3","4",..: 8 4 4 1 1 7 5 1 1 2 ...
 $ V10: Factor w/ 3 levels "1","2","AP04": 3 1 2 2 1 2 1 2 2 1 ...
 $ V11: Factor w/ 6 levels "1","2","3","4",..: 6 4 4 4 5 4 3 4 5 4 ...
 $ V12: Factor w/ 5 levels "2","3","4","5",..: 5 4 2 3 2 4 4 3 3 1 ...
 $ V13: Factor w/ 5 levels "2","3","4","5",..: 5 4 3 3 3 4 3 3 4 3 ...
 $ V14: Factor w/ 5 levels "2","3","4","5",..: 5 4 3 2 3 3 4 2 4 3 ...
 $ V15: Factor w/ 6 levels "1","2","3","4",..: 6 5 4 4 5 4 3 4 3 4 ...
 $ V16: Factor w/ 5 levels "2","3","4","5",..: 5 2 2 4 3 3 3 4 3 2 ...
 $ V17: Factor w/ 6 levels "1","2","3","4",..: 6 3 2 3 2 4 3 3 2 2 ...
 $ V18: Factor w/ 6 levels "1","2","3","4",..: 6 3 3 4 2 4 4 4 2 2 ...
 $ V19: Factor w/ 6 levels "1","2","3","4",..: 6 2 3 4 4 2 4 4 4 1 ...
 $ V20: Factor w/ 6 levels "1","2","3","4",..: 6 2 2 2 4 2 3 2 3 1 ...
 $ V21: Factor w/ 6 levels "1","2","3","4",..: 6 4 4 4 2 2 4 4 2 2 ...
 $ V22: Factor w/ 6 levels "1","2","3","4",..: 6 2 4 4 4 2 4 4 3 4 ...
 $ V23: Factor w/ 5 levels "2","3","4","5",..: 5 4 3 4 4 4 3 4 4 2 ...
 $ V24: Factor w/ 5 levels "2","3","4","5",..: 5 2 2 4 4 2 3 4 4 2 ...
 $ V25: Factor w/ 5 levels "2","3","4","5",..: 5 2 2 3 3 2 3 3 3 1 ...
 $ V26: Factor w/ 6 levels "1","2","3","4",..: 6 2 3 4 2 1 3 4 4 2 ...
 $ V27: Factor w/ 4 levels "3","4","5","OW03_01": 4 3 3 3 3 3 3 3 3 3 ...
 $ V28: Factor w/ 6 levels "1","2","3","4",..: 6 3 4 3 3 3 4 3 3 4 ...
 $ V29: Factor w/ 6 levels "1","2","3","4",..: 6 3 3 1 2 1 2 1 2 2 ...
 $ V30: Factor w/ 6 levels "1","2","3","4",..: 6 2 3 1 3 1 2 1 2 2 ...
 $ V31: Factor w/ 6 levels "1","2","3","4",..: 6 3 2 4 2 5 4 4 3 2 ...
 $ V32: Factor w/ 6 levels "1","2","3","4",..: 6 2 2 2 2 1 3 2 4 2 ...
 $ V33: Factor w/ 6 levels "1","2","3","4",..: 6 4 1 4 2 3 2 4 4 2 ...
 $ V34: Factor w/ 6 levels "1","2","3","4",..: 6 2 2 3 4 2 2 3 4 2 ...
 $ V35: Factor w/ 6 levels "1","2","3","4",..: 6 3 2 2 4 3 3 2 5 2 ...
 $ V36: Factor w/ 19 levels "1","10","11",..: 19 18 11 14 8 1 15 1 1 8 ...
 $ V37: Factor w/ 19 levels "10","11","12",..: 19 6 3 3 18 1 17 2 15 18 ...
 $ V38: Factor w/ 20 levels "10","11","12",..: 20 6 2 19 11 7 13 19 5 4 ...
 $ V39: Factor w/ 17 levels "10","11","12",..: 17 6 2 6 7 2 13 3 6 1 ...
 $ V40: Factor w/ 22 levels "10","11","12",..: 22 4 2 3 12 2 6 2 2 8 ...
 $ V41: Factor w/ 19 levels "10","11","12",..: 19 4 1 6 9 5 15 3 7 5 ...
 $ V42: Factor w/ 22 levels "10","11","12",..: 22 8 21 2 1 2 4 5 2 1 ...
 $ V43: Factor w/ 37 levels "102","107","54",..: 37 36 9 20 31 15 33 12 15 16 ...
 $ V44: Factor w/ 2 levels "","MAILSENT": 2 1 1 1 1 1 1 1 1 1 ...
 $ V45: Factor w/ 94 levels "2019-04-06 20:04:26",..: 94 1 2 3 4 5 6 7 8 9 ...
 $ V46: Factor w/ 2 levels "FINISHED","T": 1 2 2 2 2 2 2 2 2 2 ...
 $ V47: Factor w/ 2 levels "F","Q_VIEWER": 2 1 1 1 1 1 1 1 1 1 ...
 $ V48: Factor w/ 2 levels "7","LASTPAGE": 2 1 1 1 1 1 1 1 1 1 ...
 $ V49: Factor w/ 2 levels "7","MAXPAGE": 2 1 1 1 1 1 1 1 1 1 ...
 $ V50: Factor w/ 2 levels "0","MISSING": 2 1 1 1 1 1 1 1 1 1 ...
 $ V51: Factor w/ 2 levels "0","MISSREL": 2 1 1 1 1 1 1 1 1 1 ...
 $ V52: Factor w/ 51 levels "0.57","0.64",..: 51 6 25 19 13 37 3 41 41 29 ...
 $ V53: Factor w/ 20 levels "0","1","10","11",..: 20 1 18 14 11 3 11 5 6 14 ...
Ich habe das Gefühl, dass Rstudio mit diesen Werten nicht arbeiten kann. :(