rainfall seasonality index in R
This is probably a more general question of how to code equations in R, but I'll apply the concept to what's been on my to-do list. We are examining the rainfall seasonality of a monthly time series of rainfall, which measures how one month in a given year rainfall differs than if each month received 1/12 of the annual rainfall. The equation can be found here: http://leddris.aegean.gr/ses-parameters/293-rainfall-seasonality.html but re-written here: rainfall seasonality
Where Si is the annual seasonality index, Ri is the total annual precipitation for the particular year under study and Xin is the actual monthly precipitation for month n.
Our data has the below structure and continues monthly through water year 2014
head(monthlyRain)
MonthofYr WaterYear monthlyRain
1 1983 289.2
2 1983 150.8
3 1983 134.3
4 1983 16.1
5 1983 490.3
6 1983 328.9
As mentioned above, this is a more general question about how to solve slightly complex equations in R, using an example I have at hand. Let me know if this cross-posted or if there are other links to solve without being redundant here. Thanks!
r equation
asked Nov 21 at 2:30
Nick Marzolf
62
add a comment |
This is probably a more general question of how to code equations in R, but I'll apply the concept to what's been on my to-do list. We are examining the rainfall seasonality of a monthly time series of rainfall, which measures how one month in a given year rainfall differs than if each month received 1/12 of the annual rainfall. The equation can be found here: http://leddris.aegean.gr/ses-parameters/293-rainfall-seasonality.html but re-written here: rainfall seasonality
Where Si is the annual seasonality index, Ri is the total annual precipitation for the particular year under study and Xin is the actual monthly precipitation for month n.
Our data has the below structure and continues monthly through water year 2014
head(monthlyRain)
MonthofYr WaterYear monthlyRain
1 1983 289.2
2 1983 150.8
3 1983 134.3
4 1983 16.1
5 1983 490.3
6 1983 328.9
As mentioned above, this is a more general question about how to solve slightly complex equations in R, using an example I have at hand. Let me know if this cross-posted or if there are other links to solve without being redundant here. Thanks!
r equation
asked Nov 21 at 2:30
Nick Marzolf
62
add a comment |
This is probably a more general question of how to code equations in R, but I'll apply the concept to what's been on my to-do list. We are examining the rainfall seasonality of a monthly time series of rainfall, which measures how one month in a given year rainfall differs than if each month received 1/12 of the annual rainfall. The equation can be found here: http://leddris.aegean.gr/ses-parameters/293-rainfall-seasonality.html but re-written here: rainfall seasonality
Where Si is the annual seasonality index, Ri is the total annual precipitation for the particular year under study and Xin is the actual monthly precipitation for month n.
Our data has the below structure and continues monthly through water year 2014
head(monthlyRain)
MonthofYr WaterYear monthlyRain
1 1983 289.2
2 1983 150.8
3 1983 134.3
4 1983 16.1
5 1983 490.3
6 1983 328.9
As mentioned above, this is a more general question about how to solve slightly complex equations in R, using an example I have at hand. Let me know if this cross-posted or if there are other links to solve without being redundant here. Thanks!
r equation
asked Nov 21 at 2:30
Nick Marzolf
62
This is probably a more general question of how to code equations in R, but I'll apply the concept to what's been on my to-do list. We are examining the rainfall seasonality of a monthly time series of rainfall, which measures how one month in a given year rainfall differs than if each month received 1/12 of the annual rainfall. The equation can be found here: http://leddris.aegean.gr/ses-parameters/293-rainfall-seasonality.html but re-written here: rainfall seasonality
Where Si is the annual seasonality index, Ri is the total annual precipitation for the particular year under study and Xin is the actual monthly precipitation for month n.
Our data has the below structure and continues monthly through water year 2014
head(monthlyRain)
MonthofYr WaterYear monthlyRain
1 1983 289.2
2 1983 150.8
3 1983 134.3
4 1983 16.1
5 1983 490.3
6 1983 328.9
As mentioned above, this is a more general question about how to solve slightly complex equations in R, using an example I have at hand. Let me know if this cross-posted or if there are other links to solve without being redundant here. Thanks!
r equation
r equation
asked Nov 21 at 2:30
Nick Marzolf
62
asked Nov 21 at 2:30
Nick Marzolf
62
asked Nov 21 at 2:30
Nick Marzolf
62
asked Nov 21 at 2:30
Nick Marzolf
62
asked Nov 21 at 2:30
Nick Marzolf
62
62
add a comment |
add a comment |
1 Answer
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If you are interested in understanding seasonality, monthplot and/or stl functions are good options in R.
https://www.rdocumentation.org/packages/stats/versions/3.5.1/topics/monthplot
https://otexts.org/fpp2/seasonal-subseries-plots.html
answered Nov 21 at 4:47
Prasanna S
706
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
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oldest
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oldest
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If you are interested in understanding seasonality, monthplot and/or stl functions are good options in R.
https://www.rdocumentation.org/packages/stats/versions/3.5.1/topics/monthplot
https://otexts.org/fpp2/seasonal-subseries-plots.html
answered Nov 21 at 4:47
Prasanna S
706
add a comment |
If you are interested in understanding seasonality, monthplot and/or stl functions are good options in R.
https://www.rdocumentation.org/packages/stats/versions/3.5.1/topics/monthplot
https://otexts.org/fpp2/seasonal-subseries-plots.html
answered Nov 21 at 4:47
Prasanna S
706
add a comment |
If you are interested in understanding seasonality, monthplot and/or stl functions are good options in R.
https://www.rdocumentation.org/packages/stats/versions/3.5.1/topics/monthplot
https://otexts.org/fpp2/seasonal-subseries-plots.html
answered Nov 21 at 4:47
Prasanna S
706
If you are interested in understanding seasonality, monthplot and/or stl functions are good options in R.
https://www.rdocumentation.org/packages/stats/versions/3.5.1/topics/monthplot
https://otexts.org/fpp2/seasonal-subseries-plots.html
answered Nov 21 at 4:47
Prasanna S
706
answered Nov 21 at 4:47
Prasanna S
706
answered Nov 21 at 4:47
Prasanna S
706
answered Nov 21 at 4:47
Prasanna S
706
706
add a comment |
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