Questions tagged [p-value]
In statistical significance testing the p-value is the probability of obtaining a test statistic at least as extreme as the one that was actually observed.
p-value
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Significance of the coefficients of a multinomial mixed regression built with npmlt function
I fitted (using npmlt function) a mixte multinomial regression model which ran without errors.
I expected that the outputs of the model include p-values that I didn't find.
My need now is that someone ...
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Fitting distribution to data : test results doesn’t match graphs
I want to test the fit of the data before moving on to modeling
I know very well that the data are gamma distributed and even graphics (QQ plot nd cdfit) confirm the preknown distribution but the ...
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Determining the p-value of a test statistic, which is not distributed according to a commonly known distribution under the null hypothesis [migrated]
Currently I am working in R on a project that aims to identify Dragon King events (massive outliers) in large datasets. These outliers appear for example in the city sizes in England, where London is ...
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Grouped barplots with error bars and pvalue pairwise comparisons
Am new to stackoverflow and would love some help.
I have a dataset as below. I would like to create a barplot showing pairwise comparisons between treatment groups as shown but with significance stars ...
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Replicating P-value of `NeweyWest` function in `sandwich` package
I would like to replicate the p-value of NeweyWest function in the sandwich package. Could you let me know if there is any documentation for the explanation?
Sample dataset
# Question: R: Replicating ...
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How to add pvalues for multiple comparisons between more than two groups for categorical variables in gt-summary
I want to compare baseline characteristics between more than two studygroups and I prefer to use gt-summary to make the table.How can I add pvalues, corrected for multiple testing, to the table for ...
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Compare all possible combinations of a multiple linear regression model in R based on p-values
I want to find the best combination of explanatory variables for a linear multiple regression model. I dont want a comparison based on Rsquared or other "overall" metrics. But I want to find ...
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Methods to test independence in a non parametric setting
I am using random forest as my regression model and have the following data where X is a high dimensional data set in a simplex form.
I have tried using permutation and the following code:
import ...
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cor.test and stat_cor giving different correlation p-values in R
I am trying to calculate Pearson correlation between two variables using cor.test in R and also represent the data using ggplot2. While plotting the data I am using stat_cor to add the correlation ...
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Why doesn't my p value give the same in gtsummary()?
I have this df
df
# A tibble: 248 × 2
asignado mxsitam
<chr> <chr>
1 Control No
2 Control No
3 Intervencion No
4 Intervencion Si
5 ...
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What is by default significance level of Modified Mann Kendal test in R?
I am using Modified Mann Kendal test in R.
I want to know its by default value for significance level. Can we set the significance level manually? For example: 5%, 10% etc. if possible, then how can ...
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p-value using pool.scalar in R
How can I compute the p-value of the model coefficients of a multiple imputation model using the pool.scalar function? When using the pool function I can just do summary(pool(imputed_model)) and get ...
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How to fetch p-value from ADF test (ur.df)?
i have the following r code:
for (p in 1:5) {
# Perform ADF test
R.urdf_IND <- ur.df(L.ts$m_IND, type = "trend", lags = p)
# Extract test statistic
test_statistic <- R.urdf_IND@...
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R function to obtain Kendall's tau p-value with covariates? [closed]
I have two variables and a third covariate adjustor. How can I get an adjusted Kendall tau estimate plus one p-value?
a <- c(1.07, 1.9, -0.603, -0.391, -0.416, -0.376, -0.367, -0.296, 1.44, -0.698) ...
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Add p-value breaks to a gene oncology dot plot [closed]
I am so close to finishing up a gene oncology-gene ratio figure for a lab assignment, but I am struggling with adjusting my p-value breaks. I'd like to have control to having p-value range from 0.001 ...
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