Flood Frequency Distribution (FFD 2.1)

Flood Frequency Distribution (FFD) is free software to analyze flood and estimate Quantile for Different return Periods - Matlab

Flood Frequency Distribution (FFD) is free software to analyze flood and estimate Quantile for Different return Periods
1- In FFD 2.0, we have introduced ten (10) Probability Distributions:
Normal Distribution, Log Normal Distribution (2p), Gumbel Distribution
Racine-Normal Distribution, (GEV) Distribution, Gamma Distribution (2p), Log Pearson 3 Distribution, Goodrich Distribution, LogNormal (3P) and Weibull Distribution (2p)
2-In FFD 2.1, Estimation of parameters method of some of distributions can be with:
a- Method of Moment or b- L-Moment
3-The results of quantiles are estimated with lower and upper bounds 95% (Except Goodrich distribution).
4-Quantile-Quantile plot (QQ-plot) is displayed with Correlation coefficient R.
5-Displays Root mean squared Error (RMSE) between quantile and observed data.
6-Return periods are: 2, 5 10, 20, 50 100, 500, 1000 and 10000 years
7-Diplays the calculated quantiles and lower-upper Bounds in excel File.