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This recreates ewm(adjust=True).std(): pandas ewm var and std, but I have no luck replicating the calculations in ewm(adjust=False).std(). Replicating ewm(False).mean() is easy but how is the bias ...
Luluz's user avatar
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6 votes
1 answer
158 views

Output of pandas rolling std is not consistent when data size changes. I tried to apply rolling std for different slices of the data, while all of them are at the tail of the series. I observed that ...
KamiKimi 3's user avatar
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1 vote
0 answers
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I have found a script for generating a polynomial regression, which I have adapted to my needs and which basically works. However, in order to be able to use the script the way I want to, I need a ...
Mike's user avatar
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2 votes
1 answer
47 views

I'm trying to create a simple volatility indicator in Indie but keep getting an error when trying to import the standard deviation algorithm. I'm getting this error: Error: 3:39 package indie....
turfira's user avatar
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0 votes
0 answers
26 views

If I am interested in understanding the effect of an interaction between treatment and covariates on the variance of my response, as well as how they may affect the mean of my response, can I write a ...
twilightecologist's user avatar
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0 votes
1 answer
194 views

I'm trying to find the standard deviation of average duration in a table for the last 1 day as compared to the last 30 days average duration. let table1 = view() { requests | where TimeGenerated > ...
vpn's user avatar
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0 answers
87 views

I use data with scaled values based on this dataset I made a model such as : data <- data.frame( X1 = c(1.2, 2.3, 3.1, 4.8, 5.5, 4.6), X2 = c(10.4, 9.3, 8.2, 7.1, 6.0, 5.2), X3 = ...
Maxime Buron's user avatar
  • 103
0 votes
2 answers
206 views

I have a large dataset, containing a categorical (Size) and a numeric variable(Fraktion) to group the data. The rest are analytical resultd like numeric values. Every value got sampled 3 times, and I ...
ni80R's user avatar
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0 votes
1 answer
129 views

I have salinity data where for one month, the standard deviation is greater than the mean. The system is an estuary, and there was a lot of freshwater input that month, so the salinity values in the ...
Bailey Lin's user avatar
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1 vote
1 answer
85 views

I've spent 2 weeks writing code from scratch and improving it in various ways until this final problem. My code is intended to calculate the two differences per peak (there are 2 peaks per dataset, ...
PuppyLord's user avatar
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2 votes
1 answer
578 views

I am quite new with r so bear with me please. I am plotting a daily avg temperature across a four month period. I want to be able to visualize the confidence I have across the data. I believe the best ...
Matt Schaaf's user avatar
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2 votes
0 answers
67 views

I have multiple datasets of data, for which a compound sigmoid fitting curve is plotted to each. The derivatives of each fit curve are taken, resulting in 6 different theoretical derivative curves. ...
PuppyLord's user avatar
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1 vote
0 answers
93 views

I have the following script that generate 3 blobs, and plots the radius an standard deviation of all. for the third blob (centered in (20,1)) i get a std that is bigger than the radius (that is ...
arielpriarone's user avatar
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0 answers
31 views

I am running a simulation with parameters based on an existing random-effects meta-analysis. I would like to draw individual patients in the treatment group from a normal distribution with µ=the ...
bumble.bee's user avatar
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0 votes
1 answer
79 views

I have the past 19 days of stock price stored in the pd.dataframe and I am trying to find out the price P that is smaller than (mean - 2.5*standard deviation), where mean and standard deviation are ...
Roy Chang's user avatar
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0 votes
1 answer
111 views

I have very basic knowledge in programming and I have been using some tips I found here, and for that thank you in advance. Moving on to the problem, I am analyzing data from optical sensors that are ...
Francisco Rebelo's user avatar
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1 vote
0 answers
65 views

I have a dataset where every row has a datetime and a value. What I am trying to do with Tableau is to calculate the rolling average and rolling stdev of said value for the past 7 days. I am not able ...
Tan Gee Teng's user avatar
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0 answers
87 views

I have a dataset of investments with the following columns Investment Investment Rating Commitment Region Portfolio Helper A 10 100 Asia P1 1000 B 9 250 Africa P2 2250 C 8 300 S. America P1 2400 D 11 ...
Chris Dartsmith's user avatar
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0 votes
0 answers
18 views

I have the variable proportion of vegetation height for each transect in a field study, which is categorized into vegetation below 5cm, between 5 and 15cm, and over 15cm. Since each measure is a ...
weed_atman's user avatar
  • 1
1 vote
1 answer
89 views

I am getting sleep times and converting them to minutes to then calculate the standard deviation between bedtimes on different days. The issue is that some days the bedtime is after midnight. I got it ...
user23492854's user avatar
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1 vote
0 answers
209 views

I'm new to R and I'm trying to understand how to do the mean +- 2 times standard deviation. I've tried calculating the mean and the standard deviation singularly and then do the aritmetic calculation ...
Federica Gilardini's user avatar
  • 11
0 votes
1 answer
97 views

I use python stumpy to extract subsequences from a timeseries. For a pattern Q and a timeseries T, I use the function stumpy.match https://stumpy.readthedocs.io/en/latest/api.html#stumpy.match Now ...
doog_math's user avatar
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0 votes
2 answers
2k views

I have the following problem. The data-set was collected in a within-subject design with repeated measures. My data-set contains 4 variables. The participant ID, the participant's sex, condition and ...
John's user avatar
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0 votes
1 answer
91 views

First, I am new to R programming, so much of my problem may be a misunderstanding of the basics. I am working on research in college football and am trying to automate the calculation of the standard ...
clb3f's user avatar
  • 1
0 votes
1 answer
214 views

I would like to create an N by 1 array of doubles where N is any integer value. Each value in the array should deviate from a nominal value n using a standard deviation of n/10 and mean of 0. n can be ...
Jonathan Frutschy's user avatar
  • 191
0 votes
2 answers
964 views

Say I have a pd.DataFrame and want to calculate the rolling Standard deviation. In pandas I can use rolling(window=x).std(), but it gives me the SD by column. I however want the standard deviation ...
W. Walter's user avatar
  • 349
0 votes
1 answer
235 views

When looking at the picture Difference_EMA_SMA_Standard_Deviation we observe that sometimes exponentially weighted moving standard deviation (EMA_SD) is significantly different from standard moving ...
Humba Bumba's user avatar
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0 votes
1 answer
99 views

In SAS, Proc Standard allow users to standardise data into a certain mean and standard deviation by a certain group. Here, I want to standarize age to a of mean = 0 and deviation =5 for each surname. ...
stranger12309's user avatar
  • 45
2 votes
2 answers
3k views

I am trying to create a plot that should also show the standard deviation. Here is my data y20_6 = np.array([18351.6,17976.6,16101.6]) y20_12 = np.array([15664.1,16984.4,18304.7]) y20_18 = np.array([...
Dany's user avatar
  • 63
1 vote
0 answers
99 views

I have conducted a mixed-design ANOVA with a between-subjects factor (Group: Control Group [0] vs. Intervention Group [1]) and a within-subjects factor (Time: Baseline [0], Follow-up 1 [1], and Follow-...
Manuel Leitner's user avatar
  • 11
0 votes
1 answer
23 views

I have a large dataset with four variables, like this: Public_Issue Voter_Partisanship Population value 2 non-partisan Politicians 40 2 moderately-partisan Voters 42 2 moderately-partisan Politicians ...
lwe's user avatar
  • 401
0 votes
0 answers
40 views

I am writing a simple script that takes multiple inputs as a set of data. The output should be rounded to one more decimal place than the largest one inputted. For example, if my input data is [3, 6.2,...
JoRayMe's user avatar
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0 votes
2 answers
314 views

I have an array: import numpy as np # Create an array of values values = np.array([41,17,44,36,14,29,33,38,49,39,22,15,46]) # Calculate the mean mean = np.mean(values) # Calculate the standard ...
Jose Luis Landivar S's user avatar
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0 votes
0 answers
22 views

I'm creating a violin plot and am wanting to add a stat_summary argument to show the mean and standard deviation/errorbars for each group. However, when I do this, the y-axis is reorientated so that ...
Charlotte's user avatar
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0 votes
1 answer
102 views

I interpolated a dataset as follow: y = [-2.35771490e-04, -2.04672372e-04, 5.40550849e-06, -3.26933980e-04, -4.31306957e-04, -4.06928662e-04, -7.50889655e-04, -1.03669983e-03, -5....
Krystal's user avatar
  • 43
0 votes
1 answer
125 views

calculate_stats <- function(x) { non_missing_values <- na.omit(x) if (length(non_missing_values) >= 1) { sd_val <- sd(non_missing_values, na.rm = TRUE) se_val <- sd_val / sqrt(length(...
Idea's user avatar
  • 1
0 votes
2 answers
69 views

I am able to Standardizing each observation for the variable "len" using the mean and standard deviation calculated from only prior observations. However, I am uable to attach it as a column ...
Es003's user avatar
  • 21
1 vote
1 answer
69 views

I am currently working on a code that involves representing the mean standard deviation of the total weight of species collected over forest stands containin shelterbelts (Yes, No) further I want the ...
Madelein Victor's user avatar
  • 23
0 votes
1 answer
4k views

I have a dataframe that has a datetime Purchase Date column, a float64 Price column, and an object Location column. I have over 1000 locations, and almost all locations do not have daily data. I need ...
novicePythonLearner's user avatar
  • 1
2 votes
1 answer
93 views

I am using the below code to calculate standard deviation azimuthally for 2D array converted from images. However, the code takes couple minutes to run. Can anyone suggest how this can be made faster? ...
Bahauddin Omar's user avatar
  • 194
0 votes
1 answer
855 views

I have a dataset that includes the following columns Unique ID, Activity, Activity Duration I was able to create a matrix that looks like this (I am not including the activity types for anonymity but ...
Victor G's user avatar
  • 47
0 votes
1 answer
118 views

I am trying to calculate the standard deviation for a subgroup of data within my data set. For every year, the standard deviation shall be calculated for those values, that are above the mean value ...
Li4991's user avatar
  • 81
0 votes
0 answers
93 views

This is the exercise: For both of these exercise, you get two lists of values that you want to compare. You will have to calculate the variance and the means, then compare them according to the t-test....
nala's user avatar
  • 1
1 vote
1 answer
52 views

I managed to plot the means as a line, however, I do not know how to plot their respective standard deviation as geom_smooth. When I just use the geom_smooth function, it does not seem to plot the ...
rubst4r's user avatar
  • 11
-1 votes
2 answers
543 views

I have a dataset of 10 participants. These participants conducted different walking tests and physiological responses (i.e., heart rate, breathing frequency) were collected. I want to detect outliers ...
Sophie's user avatar
  • 1
3 votes
2 answers
196 views

I have a MongoDB collection like this: [ { "_id": 1, "price": 1 }, { "_id": 2, "price": 2 }, { "_id": 3, "price&...
AnujGeek's user avatar
  • 140
0 votes
0 answers
28 views

I have 3 columns. The first column is the participant number. The other two are reaction time (RT) data with NAs in them. I want to get the standard deviation across the two columns to end up with one ...
Diane Abdallah's user avatar
  • 1
0 votes
1 answer
45 views

I am trying to calculate the standard deviation applied to all rows of my column called Months between with a format like this [5, 1, 3, 1, 2, 2, 1, 3, 3, 1] I have tried simply with this: merged_df[&...
Mile's user avatar
  • 11
0 votes
0 answers
640 views

I'm working on answering the following question Create a structure representing a student object with the following members regno. courseid unitsRegistered: This should be an array of the course units ...
Peaches Njenga's user avatar
  • 1
1 vote
1 answer
106 views

I am trying to group the following data so that I can use summarySE from the Rmisc package to later plot errorbars for this data. I have tried grouping in various ways but neither of my tries does ...
Nervous Optic Head's user avatar
  • 41

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