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Registerand now that we are at it [Bioanalytics]
How would you calculate s:n for y3 in a series like this:
As usual, I am not so much asking you how you think others would do it in other contexts. I am asking you how you would do it. Let us for simplicity assume there is a peak around 5 units here and that we know nuffin about anything except y3 and t.
You are of course also welcome to eyeball it and tell me the level of s:n. Make all the assumptions you wish. Change data as you please.
Note: true chromatographic raw data are much uglier than this. Whatever you see when visualizing peaks with or without smoothing, bunching and gamma modality or whatever the heck it is called involves a lot of signal conditioning in all major packages.
n=1500
t=c(1:n)/100
y1=rep(0,n)
for (i in 1:314) y1[400+i]=13*sin(i/100)
y2=3*runif(n)*log(t+10)
y3=y1+y2
plot(t ,y3, pch=20, cex=0.1)
lines(t, y3)
As usual, I am not so much asking you how you think others would do it in other contexts. I am asking you how you would do it. Let us for simplicity assume there is a peak around 5 units here and that we know nuffin about anything except y3 and t.
You are of course also welcome to eyeball it and tell me the level of s:n. Make all the assumptions you wish. Change data as you please.
Note: true chromatographic raw data are much uglier than this. Whatever you see when visualizing peaks with or without smoothing, bunching and gamma modality or whatever the heck it is called involves a lot of signal conditioning in all major packages.
—
Pass or fail!
ElMaestro
Pass or fail!
ElMaestro
Complete thread:
- Isn't it time for an open source chromatographic format ElMaestro 2018-11-04 21:54 [Bioanalytics]
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- Isn't it time for an open source chromatographic format nobody 2018-11-05 09:00
- and now that we are at itElMaestro 2018-11-05 13:53
- and now that we are at it nobody 2018-11-05 16:33
- and now that we are at it ElMaestro 2018-11-05 18:19
- Transparent ruler – like in the good ol’ days Helmut 2018-11-05 20:39
- Transparent ruler – like in the good ol’ days Ohlbe 2018-11-05 22:14
- Transparent ruler – like in the good ol’ days ElMaestro 2018-11-05 22:43
- Slow down, you move too fast […] Feelin’ Groovy Helmut 2018-11-06 02:05
- Slow down, you move too fast […] Feelin’ Groovy nobody 2018-11-06 09:29
- Yes it went a little fast ElMaestro 2018-11-06 11:09
- Yes it went a little fast nobody 2018-11-06 12:05
- Yes it went a little fast ElMaestro 2018-11-06 12:10
- Yes it went a little fast Helmut 2018-11-07 16:09
- Yes it went a little fast ElMaestro 2018-11-07 16:22
- Yes it went a little fast nobody 2018-11-07 18:30
- Purpose of S:N? Helmut 2018-11-08 09:46
- Purpose of S:N? ElMaestro 2018-11-08 22:27
- Purpose of S:N? nobody 2018-11-09 10:06
- Purpose of S:N? Helmut 2018-11-09 11:34
- Purpose of S:N? nobody 2018-11-09 12:08
- Purpose of S:N? Helmut 2018-11-09 12:34
- Purpose of S:N? nobody 2018-11-09 12:08
- Purpose of S:N? Helmut 2018-11-09 11:34
- Purpose of S:N? Helmut 2018-11-09 11:26
- Purpose of S:N? ElMaestro 2018-11-09 13:16
- Purpose of S:N? nobody 2018-11-09 10:06
- Purpose of S:N? ElMaestro 2018-11-08 22:27
- Yes it went a little fast ElMaestro 2018-11-07 16:22
- Yes it went a little fast Helmut 2018-11-07 16:09
- Yes it went a little fast ElMaestro 2018-11-06 12:10
- Yes it went a little fast nobody 2018-11-06 12:05
- Yes it went a little fast ElMaestro 2018-11-06 11:09
- Slow down, you move too fast […] Feelin’ Groovy nobody 2018-11-06 09:29
- Slow down, you move too fast […] Feelin’ Groovy Helmut 2018-11-06 02:05
- Transparent ruler – like in the good ol’ days ElMaestro 2018-11-05 22:43
- Transparent ruler – like in the good ol’ days Ohlbe 2018-11-05 22:14
- and now that we are at it nobody 2018-11-05 16:33
- and now that we are at itElMaestro 2018-11-05 13:53
- Isn't it time for an open source chromatographic format paulhurleyuk 2018-11-05 16:27
- Isn't it time for an open source chromatographic format nobody 2018-11-05 09:00
Ing. Helmut Schütz