corrected wrong task numeration

Tutorial_Scripts/RIntro/BIA_T02_RIntro2.Rmd

@@ -53,40 +53,40 @@ summary(Shower_clean) # all rows having NA values in one or many columns are now
 
 
 ```{r Simple Statistics}
-# Task 5
+# Task 7
 mean(Shower$ShowerTime) #mean without parameters does not work because we have some NA values in this vector
 mean(Shower_clean$ShowerTime) #this data frame is cleaned and mean should work
 mean(Shower$ShowerTime, na.rm = T)
 
-# Task 6
+# Task 8
 var(Shower_clean$ShowerTime)  #variance (implements sample variance)
 
-# Task 7
+# Task 9
 median(Shower_clean$ShowerTime)
 
-# Task 8
+# Task 10
 sd(Shower_clean$ShowerTime)       #standard deviation (implements sample formula)
 
-# Task 9
+# Task 11
 #compare variance and square of standard deviation
 (sd(Shower_clean$ShowerTime)^2) == var(Shower_clean$ShowerTime)
 #the comparison of numbers should be made considering a precision:
 all.equal((sd(Shower_clean$ShowerTime)^2), var(Shower_clean$ShowerTime))
 
-# Task 10
+# Task 12
 max(Shower_clean$ShowerTime)
 min(Shower_clean$ShowerTime)
 
-# Task 11
+# Task 13
 quantile(Shower_clean$ShowerTime)
 ```
 
 
 ```{r Write and filter data}
-# Task 12
+# Task 14
 write.csv2(x = Shower[Shower$Hh_ID == 8899,], file="../../output/problematic_shower_data.csv")
 
-# Task 13
+# Task 15
 write.csv2(x = Shower[Shower$Hh_ID != 8899,], file="../../output/cleaned_shower_data.csv")
 ```
 

Tutorial_Scripts/RIntro/BIA_T02_RIntro2_exercise.Rmd

@@ -26,44 +26,45 @@ This file is part of the lecture Business Intelligence & Analytics (EESYS-BIA-M)
 # Task 4
 # the group is not meaningful as numeric! Convert it to a factor
 
+
 # Task 5
 #level names of factors can be changed - mind the order of the elements!
 
+
 # Task 6
 
 ```
 
 
 ```{r Simple Statistics}
-# Task 31
-
-# Task 32
-
-# Task 33
+# Task 7
 
+# Task 8
 
-# Task 34
+# Task 9
 
+# Task 10
 
-# Task 35
+# Task 11
 #compare variance and square of standard deviation
 
 #the comparison of numbers should be made considering a precision:
 
 
-# Task 36
+# Task 12
 
-# Task 37
+# Task 13
 
 ```
 
 
 ```{r Write and filter data}
-# Task 38
+# Task 14
 
 
-# Task 39
+# Task 15
 
 ```
 
+After cleaning data we have stored the data to the folder "output".