Questions tagged [deviation]
98 questions
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R condtional standard deviations values of Arima object
Is there a similar function to sigma(object = "uGARCHfit") for an Arima object ?
Or another way to get the conditional standard deviation of an Arima object.
Thanks.
user1627466
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Computing deviation from mean for each row
Using the following code, I wrote a function to that gives me the average of the values in each row (1). Now I would like to compute the deviation of each value (i,j) in row i from the mean calculated in row i (using a function). I wrote a function…
Titi90
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How the length of averaged normal can be seen as a function of deviation of the angle?
Recently I read NVidia's Mipmapping_Normal_Maps
which says we can used the un-renormalized averaged normal to compute the standard deviation of the angle between averaged normal and sample normals.
By the first step, it assumes a Gaussian…
sHeldON
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I'm trying to solve a very simple heat conduction differential equation with NDSolve in Mathematica, but the solution I get is quite strange…
This is a very simple one-dimensional solid-phase heat conduction differential equation, here is my code:
a = NDSolve[{D[721.7013888888889` 0.009129691127380562` tes[t, x],
t] == 2.04988920646734`*^-6 D[tes[t, x], x, x],
tes[t, 0] == 298…
xzczd
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what is the R code to calculated a mean and standard deviation of multiple mean and standard deviations?
what is the R code to calculated a mean and standard deviation of multiple mean and standard deviations? each has its own number of items...
I tried to search online and in this forum but there was no straight answer...thank you!
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1 answer
Finding the average and standard deviation of a data set
I have a laser that is sent through a signal splitter. 90% of the light goes into a diffuser and that is detected by a Photomultiplier tube (PMT). The other 10% of the signal goes to a separate silicon photodiode that is used to monitor the power of…
Rachel Fister
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Remove rows on quartile deviation low or high
Wrote a code
df=data.copy()
for column in data.columns:
Q1= np.quantile(data[column],0.25)
Q3= np.quantile(data[column],0.75)
IQR = Q3-Q1
Low = Q1 - 3*(IQR)
High = Q3 + 3*(IQR)
df = df[(df[column] > Low ) | (df[column] <…
Suraj Goswami
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1 answer
Need to display a positive and a negative message in a column when a number deviates from the average
Basically, I need to create a table that will show the avg users per day of the week and if there is a 20% positive or negative deviation in the numbers from the average I need it to say 'Positive outlier' or 'negative outlier'. I have currently…
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Absolute Deviation Formula in R
I have a little problem i wanna make this formula to my code in R studio for iris (data-mean of colum)/absolute deviation. and this is my code
y=iris[,1:4]
for(i in 1:4){y[, i] = (iris[,i] - mean(iris[,i]))/sd(iris[,i])}
y
but this code is for…
stuckcom
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3 answers
Deviation of a list from a reference value
I've got a reference value:
ref = 0.5
And a list:
my_list = [0.4, 0.5, 0.6, 0.5]
I'm trying to calculate how much, on average, the elements of my list differ from my reference value. Basically, it would be the same as a standard deviation, but…
Notna
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Computing variance, standard deviation in python
How to calculate data distribution (variance and standard deviation) on Python 3, if the data has > given with atribute Jumlah_individu?
this is my code to calculate mean (I have get it) but for varience and standard deviation i cann't
dodo
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mean and standard deviation
Im trying to make a mean and standard deviation calculator on visual studio using windows form. It's for a class and I have to use windows form and you have to be able to input data manually or select .txt file wiht the data in it.
Its hard to…
bsweeney930
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2 answers
MySQL: How to count the number of deviations?
I've got a table with two columns: timestamp and integer value (let's name these date and value). The second value gets swings between 0 and ~290 and then goes back to 0, so on the chart it looks like a waves (details are viewed on screenshot).
How…
Corewood
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How to find two elements that have smallest difference in an array?
How do I find two elements in an array that have the smallest difference?
In other words, how to find two elements that have a the smallest standard deviation.
For instance, if I have an array like:
arr = [158,2,15,38,17,91]
the result would be 15…
masfmqowkf
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1 answer
Order dataframe according to specific deviation percentage (edited)
Lets say I have the following dataframe:
a <- c(0.9,0.8,0.7)
b <- c(1000,200,20)
c <- c(10,20,10)
myframe <- data.frame(a,b,c)
1 0.9 1000 10
2 0.8 200 20
3 0.7 20 10
I know want to find the "best" combination subject to the following rules:…
user3347232
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