Message-ID: <594ea639.0e56240a.7719d.b58e@mx.google.com>
Date: 2017-06-24T17:49:47Z
From: Christophe Elek
Subject: Fill in empty cell in data.frame from previous value
Hello Total newbie here... I hope I read the guide properly
I have the following data.frame (I read it from a CSV file I cannot change)
names val
1 Mandy 1
2 2
3 John 2
4 2
I want to read the row number 2, but I want the first column to be ?Mandy? and not null
print (frame[2,])
2 Mandy 2
I can manipulate the data.frame once loaded
How can I fill all cell in column ?names? with the previous value ?
Or is there a function that will get me the row and fill the ?names? column ?
NOTA BENE: I do not want the answer, I want to find it myself but I need guidance
If there is a function, tell me the library and I will search
If this is an algorithm, tell me generally how you would do and let me scratch my head first ?
Thanks Chris
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