CODEWITHSUNDEEP
rstatistics
Justin Carrey
Justin Carrey

Reputation: 3851

Plot points for every 15 minutes

I have a text file having the numbers(of float type) which represents time in seconds. I wish to represent the number of occurances every 15 minutes. The sample of my file is: 

0.128766
2.888977
25.087900
102.787657
400.654768
879.090874
903.786754
1367.098789
1456.678567
1786.564569
1909.567567

for first 900 seconds(15 minutes), there are 6 occurances. I want to plot that point on y axis first. Then from 900-1800(next 15 minutes), there are 4 occurances. So, i want to plot 4 on my y-axis next. This should go on...

I know the basic plot() function, but i don't know how to plot every 15 minutes. If there is a link present, please guide me to that link.

Upvotes: 1

Views: 189

Answers (2)

sinclairjesse
sinclairjesse

Reputation: 1595

To build on Andrie's answer. You can add plot(counts, type = 'p') to plot points or plot(counts, type = 'l') to plot a connected line. If you want to plot a curve for the counts you would need to model it using ?lm or ?nls.

Upvotes: 0

Andrie
Andrie

Reputation: 179428

Use findInterval():

counts <- table(findInterval(x, seq(0, max(x), 900)))
counts

1 2 3 
6 4 1

It's easy to plot:

plot(counts)

enter image description here

Upvotes: 1

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