Dear all;
I am using the ANN to predict the concentration of DO in
a lake system but I do not know why all the predicted values are
similar? Here are my codes:
library(neuralnet)
library(nnet)
## fit a simple model
fit? <- neuralnet(DO ~ Day,data = ss1)
## create new data into the future
futuredata <- expand.grid(Day = 589:1000)
## do predictions
predictions <- compute(fit, futuredata)
Here is my data: ss1:
station Day DO
kanal 1 8.3
kanal 8 8.6
kanal 14 8.4
kanal 17 7.9
kanal 28 7.1
kanal 35 6.7
kanal 47 6.5902
kanal 54 6.8475
kanal 63 6.5487
kanal 70 6.2416
...... .... .....
...... .... .....
...... .... .....
...... .... .....
kanal 475 6.8
kanal 496 7.63
kanal 510 7.39
kanal 536 7.72
kanal 567 8.53
kanal 588 9.14
Many thanks.
Regards.