Naming your columns / rows

Let's look at cash again:

cash

  comp cash yr
1    A 1000  1
2    A 4000  3
3    A  550  4
4    B 1500  1
5    B 1100  2
6    B  750  4
7    B 6000  5

Wait, that's not right! It looks like someone has changed your column names! Don't worry, you can change them back using colnames() just like you did with names() back with vectors.

Similarly, you can change the row names using rownames(), but this is less common.

Diese Übung ist Teil des Kurses

Introduction to R for Finance

Kurs anzeigen

Anleitung zur Übung

The altered data frame cash is in your workspace.
Fix your column names by using colnames() and assigning a character vector of "company", "cash_flow", and "year" in that order.
Print out the fixed colnames() of cash.

Interaktive Übung

Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.

# Fix your column names


# Print out the column names of cash

Code bearbeiten und ausführen