Displaying 3 results from an estimated 3 matches for "minima_index".
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maxima_index
2017 Aug 26
0
Find maxima of a function
...nsity(values)
>> v_dens_y <- v_dens$y
>>
>> r <- rle(v_dens_y)
>> # These functions ignore the extremes if they are the first or last point
>> maxima_index <- which(rep(x = diff(sign(diff(c(-Inf, r$values, -Inf))))
>> == -2, times = r$lengths))
>> minima_index <- which(rep(x = diff(sign(diff(c(-Inf, r$values, -Inf))))
>> == 2, times = r$lengths))
>>
>> plot(v_dens_y)
>>
>> HTH
>> Ulrik
>>
>>
>> On Sat, 26 Aug 2017 at 11:49 niharika singhal <
>> niharikasinghal1990 at gmail.com> wrote:...
2017 Aug 26
6
Find maxima of a function
I have a Gaussian mixture model with some parameters
mean=(506.8644,672.8448,829.902)
sigma=(61.02859,9.149168,74.84682)
c=(0.1241933, 0.6329082, 0.2428986)
And the plot look something like below.[image: enter image description here]
<https://i.stack.imgur.com/4uUQ9.png>
Also, if I change my parameters to
mean=(2.15,2.0,2.9)
sigma=(0.1,0.1,0.1)
c=(1/3,1/3,1/3)
Then plot would change
2017 Aug 26
1
Fwd: Find maxima of a function
...> >>> r <- rle(v_dens_y)
> >>> # These functions ignore the extremes if they are the first or last
> point
> >>> maxima_index <- which(rep(x = diff(sign(diff(c(-Inf, r$values,
> -Inf))))
> >>> == -2, times = r$lengths))
> >>> minima_index <- which(rep(x = diff(sign(diff(c(-Inf, r$values,
> -Inf))))
> >>> == 2, times = r$lengths))
> >>>
> >>> plot(v_dens_y)
> >>>
> >>> HTH
> >>> Ulrik
> >>>
> >>>
> >>> On Sat, 26 Aug 201...