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Questions tagged [significance]

231 questions
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3 answers

Significance level added to matrix correlation heatmap using ggplot2

I wonder how one can add another layer of important and needed complexity to a matrix correlation heatmap like for example the p value after the manner of the significance level stars in addition to the R2 value (-1 to 1)? It was NOT INTENDED in…
doctorate
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How to draw the boxplot with significant level?

Some time ago I asked a question about drawing boxplot Link1. I have got some data with 3 different groups (or labels) Please down load here. I can use the following R codes to get the boxplot library(reshape2) library(ggplot2) morphData <-…
Samo Jerom
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Significance level of ACF and PACF in R

I want to obtain the the limits that determine the significance of autocorrelation coefficients and partial autocorrelation coefficients, but I don't know how to do it. I obtained the Partial autocorrelogram using this function pacf(data). I want…
Erincon
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3 answers

Barplot with significant differences and interactions?

I would like to visualize my data and ANOVA statistics. It is common to do this using a barplot with added lines indicating significant differences and interactions. How do you make plot like this using R? This is what I would like: Significant…
Jonas Lindeløv
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10
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2 answers

How do I add an asterix to a boxplot to represent significance?

I am trying to include an asterix on top or bottom of a box in boxplot graph that represent significance after performing the independent variable t-test evaluation. How can I add this to my graph?
user1250704
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8 answers

C# Finding relevant document snippets for search result display

In developing search for a site I am building, I decided to go the cheap and quick way and use Microsoft Sql Server's Full Text Search engine instead of something more robust like Lucene.Net. One of the features I would like to have, though, is…
CleverPatrick
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Automatically adding letters of significance to a ggplot barplot using output from TukeyHSD

Using this data... hogs.sample<-structure(list(Zone = c("B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "B", "D", "D", "D", "D", "D", "D", "D", "D", "D", "D", "D", "D", "D", "D", "D", "D", "D", "D",…
Johnny5ish
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Significance testing in R, determining if the proportion in one column is significantly different from the other column within the single variable

I'm sure this is an easy command in R, but for some reason, I'm having trouble finding a solution. I'm trying to run a bunch of crosstabs (using the table() command) in R, and each tab has two columns (treatment and no treatment). I would like to…
Captain Murphy
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2 answers

Drawing a contour line around connected cells in a heatmap in R

I have data with two time axes and measurements for each cell. From this I create a heatmap. I also know for each cell whether the measurement is significant. My problem is to draw a contour line around all cells that are significant. If cells form…
Christoph Aurnhammer
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1 answer

Can I extract significane values for Logistic Regression coefficients in pyspark

Is there a way to get the significance level of each coefficient we receive after we fit a logistic regression model on training data? I was trying to find out a way and could not figure out myself. I think I may get the significance level of each…
CARTman
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6
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1 answer

Different colored values by facet in ggplot2 geom_pointrange with significance annotation

I adapted code that I found in this Google group post: "Annotations to display significant differences" which was originally written by "Tom W" This code produces the following point range plot: I would like the values (points + confidence…
esiotrot
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1 answer

Polychoric correlation matrix with significance in R

I have been desperately looking for a way to compute a polychoric correlation matrix, with significance in R. If that is very hard then polychoric correlation between two variables with significance would be sufficient. What I have tried so…
Helgi Guðmundsson
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How to detect if change in time series data is no longer significant?

I have a set of news articles for which there are stats, eg.: number of twitter posts mentioning the article for range of days. Natural behavior of stats values is that the number of new posts grows fast and then decreases as the news ages. I would…
xvga
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Hatch area using pcolormesh in Basemap

I try to hatch only the regions where I have statistically significant results. How can I do this using Basemap and pcolormesh? plt.figure(figsize=(12,12)) lons = iris_cube.coord('longitude').points lats = iris_cube.coord('latitude').points m =…
Zoran
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Add p-values in corrplot matrix

I calculated the Spearman correlation between two matrices and I'm plotting the r values using corrplot. How can I plot only the significant correlations (so only those correlations having p value lower than 0.00 and delete those having higher p…
Francesca de Filippis
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