All Questions
Tagged with data-visualization descriptive-statistics
68 questions
0
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0
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18
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Error Bars for Incidence of a Rare Medical Complication
I am making a plot of the incidence of a medical complication by the drug dose used. The incidence is very small, and so I am getting huge error bars using standard deviation-based methods, even ...
- 1
2
votes
1
answer
533
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Boxplot or Scatterplot?
I created boxplots for 5 traits to show the spread of true age for each variant of each trait in both samples between 2 observers:
A professor suggested that I should use scatterplot of Price vs Kim ...
- 121
3
votes
1
answer
72
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I have an issue summarising highly skewed data in a table
I have a numerical ordinal dataset (eg. 1-10) that's very highly skewed, with >90% of the values at 10. How can I best summarise this in a table? The median/IQR gives '10 (10, 10)' (which doesn't ...
- 31
1
vote
1
answer
57
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Comparing two series of measurements
I measured execution times in environments A-1/2 and B-1/2 for tasks I and II.
I performed these measurements in two different contexts V1 and V2.
I have created a third table in which I form ...
- 13
0
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1
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61
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What graph is best suited for this data? (and how can I produce it in R)
I have this df object (9x19),
...
0
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0
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49
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Comparing percentages when the group sum is not 100
Wondering if my method here for coding qualitative research data is valid.
My raw data looks like this:
Contains apples
Contains bananas
Contains pears
Cart 1
x
Cart 2
x
Cart 3
x
x
Cart 4
x
x
...
- 101
0
votes
0
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32
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Create a synthetic dataset from the measures of spread
I have certain measures of spread (p50, p66, p75, p80, p90, p95, p98, p99, p99.9, p99.99, p100, Median, Mean, Min, Max)as my attributes. Can I regenerate a data distribution from these?
Use case: I ...
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2
votes
1
answer
2k
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Statistical analysis (comparison) of time course experiments
I have data sets that represent multiple measurements over time. The data sets come from biological experiments in which we measure something in N individual cells, with around 250 measurements over a ...
- 21
4
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2
answers
2k
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How to visualize numerical data with upper and lower bounds?
I have a dataset, containing some trees and the estimated upper and lower bounds of their ages. For example, tree #1 is 10~15 years old, and tree #2 is 13~20 years old, etc. I want to visualize the ...
- 65
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0
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33
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Summarise results of multiple posteriors on simulated data
For a Bayesian model $M(\theta_1, \theta_2)$ I simulated 100 datasets with fixed $\theta_1$ and $\theta_2$ and then ran posterior sampling on each dataset using model $M(\theta_1, \theta_2)$.
Now, my ...
- 1
0
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1
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46
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Question about the interpretation of boxplots in a chart [closed]
Can someone explain what these horizontal lines ( sort of boxplot?) against each condition represent? How is 1 a reference point? Thank you!
- 229
1
vote
1
answer
538
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Counting and percentages in EDA, analysis in binary classification
Let's asume we have a dataframe with 100 clients, 70 males and 30 females, where 10% of them buys the product and 90% doesn't.
Case 1: 7 males and 3 females buys the product = Same distributions
If ...
- 535
0
votes
1
answer
27
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Which is the best comparison method to analyze these data-sets?
I need help on the best approach to perform statistical analysis to find out if there are any discrepancies in these data-sets for my students (for five independent years - with each year representing ...
Emily Nash
3
votes
0
answers
133
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Is there any consensus or literature on the proportion of font parameters within plots?
This is now about how to make a plot, though that is the information that I'm finding when trying to search for an answer to my question. What I'm wondering, is whether there are any thoughts/...
- 936
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1
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372
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Descriptive statistics for 2 variables grouped by gender with spss
I have 3 variables one categorical gender and the others are the IQBefore and IQAfter which ...
- 111
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0
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22
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if a very large amout the rows are missing in any perticular column is it appropriate to drop it?
I am dealing with time series data having a large number of columns, in which some of these columns have 95% of misssing values.
If I drop these columns and continue will that really affect my model'...
0
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0
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26
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How to best display the distribution of a large dataset with many outliers? [duplicate]
I have a very large data set (~300'000 data points) and a subset of it (6000 data points), which shows the difference of travel time [in seconds] of agents before and after a road closure. I want to ...
- 113
6
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1
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181
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Viral topics. How to describe and characterize bumps in time series of tag-activity on Meta Stack Exchange
Background
There is much dissatisfaction on StackExchange. This can now be covered in over 250 questions on meta (see 1 and 2). In response to that I made a recent meta-post and supported it with the ...
- 86.6k
2
votes
1
answer
67
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Data Visualization: Summary Statistics
I have 10,463 observations of crop yield data, however, they are subdivided into 6 crops (~2000 obs each). I am wondering if it is best to report a summary statistics table by crop (maybe 3 crops per ...
- 468
0
votes
1
answer
105
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What type of graphic will be suitable for 3 continuous vs 1 categorical variable [closed]
I want to create a graphic to explore relationship between 3 continuous and 1 categorical variable.
I have 2 different examples I want to investigate.
1-
the numeric variables are
num of bedrooms ...
2
votes
1
answer
45
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Descriptive text from non-standard quantile plot [closed]
I don't think this type of plot has a name, but as the legend shows, the shades of gray represents the quantile distribution of repeated temperature measurements, taken on the same calendar day over ...
- 21
2
votes
1
answer
38
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What interesting data manipulations can be done over 70x5 data points in a school context?
TL;DR: I am looking for ideas for a school assignment in basic statistics.
Context: My son (14 years old, French class 3ème, equivalent to 9th grade) got a group assignment in Mathematics.
They ...
- 281
3
votes
3
answers
912
views
Understanding the shape of the distribution of a random variable
What plots can I draw to understand the shape of the distribution of a random variable?
I do know that histograms can be plotted to do the above. But can a box plot and a violin plot be plotted as ...
- 51
1
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0
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58
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Looking for visualizations in probability and statistics
Are there any online resources or books where probability and statistics concepts are explained in schematic pictures and plots? What I am looking for is: let's say while explaining marginal, a 2d ...
-1
votes
1
answer
987
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Visualize multiple times series in R
I'm writing a seminar paper about the topic of forecasting NO2 (h=2) data. My dataset includes 130 timeseries (balanced panel) from 2010 to 2012. At the moment I'm struggling to find a suitable way to ...
1
vote
1
answer
77
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Box plot when given intervals and not discrete data?
I am investigating the income of a region and am given intervals of income,
e.g. 0 to 99,000 kr (first over interval) 100,000 to 199,000 (second interval) etc, and the last interval is ''over 600,000 ...
- 11
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0
answers
33
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Appropriate averaging for program runtimes on different samples
I'm trying to figure out which "average" and "deviation" statistics are most appropriate for a software benchmark I'm creating.
For background: I am benchmarking programs whose task is to read in a ...
- 111
1
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0
answers
59
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How can I visualize/analyze data that has percentages and numbers across multiple time periods?
I have a large dataset like this:
...
3
votes
1
answer
596
views
Normal Probability Plot: oscillation around straight line: polynomial relationship?
This is the Normal Probability Plot I've obtained for some data:
As you can see the points seem to osciallate, as in a period, around the line of slope 1 and passing through the origin. I've obtained ...
- 2,286
2
votes
1
answer
2k
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Partial residual plot with interactions?
The NIST website's description of the partial residual plot says that it plots
$$
\text{Res}+\hat\beta_iX_i\text{ versus } X_i
$$
where
$\text{Res}$ = residuals from the full model
$\hat\beta_i$ = ...
- 161
1
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0
answers
66
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Visualize KPI in percentage based on small numbers
I'm creating a report with a KPI that I here illustrate as the share of students passing courses. This KPI has a goal of 90 %.
Given this data
...
- 11
2
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0
answers
1k
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How to perform data quality check on large number of features using Spark?
I am used to work with manageable number of features. I usually print some descriptive statistics and visualise the histograms of each feature using Python and Pandas or R. I check for outliers and if ...
- 21
1
vote
3
answers
970
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Alternative to boxplots that illustrate MEAN
What is a good alternative to boxplots that reflects the MEAN and STANDARD ERROR , not the median and its quartiles ?
A package in R that does that would help a lot.
- 2,214
3
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2
answers
1k
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What is the physical significance of cumulative correlation coefficient?
Say, I have 2 parameters, and based on my dataset, I have iteratively calculated the correlation coefficients between them by taking the correlation of the first i terms, where i ranges from 1 to the ...
- 261
5
votes
1
answer
5k
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How to estimate the standard deviation of residuals on a residual plot?
So I understand that on the normal histogram and scatter plot, we estimate the standard deviation by looking at the portion which contains $\frac23$ of the data.
In terms of a residual plot from a ...
- 213
1
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0
answers
26
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What kind of chart to use for showing big stock transactions?
I have a requirement to write a program to show a list of stock buyers with their transaction data across time. That is,
...
- 111
1
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1
answer
9k
views
Is this a skewed distirbution or bimodal?
It appears that this distribution may be right skewed and bimodal. Or is it just right skewed only?
user46925
0
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2
answers
5k
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Interpret box plot when no mean is shown
I am trying to understand what is shown in the following boxplot given the information from the Wikipedia article on the box plot.
The problem is that we see no mean, and only whiskers in one ...
- 161
3
votes
1
answer
1k
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How to properly display changes in percentages over time?
Our company is developing self-learning software that extracts data from documents and enters it automatically into text-fields in some other software, on behalf of the user. These suggestions aren't ...
2
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2
answers
124
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How do I interpret & present Meta Analysis Report to Non-Statisticians?
I have a Meta analysis report & I have to present the findings of the report to non-statisticians. There are 2 treatment groups & 5 endpoints.
How do I explain pooled odds ratio, forest plot,...
- 21
0
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2
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4k
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How to profile, visualise and understand large number of groups/classes/clusters in data [duplicate]
I am working on clustering a medium-sized, high-dimensional data set (200k rows; 120 columns).
Once I have attempted (multiple) cluster solutions, I would like to profile my clusters and understand ...
- 277
13
votes
4
answers
4k
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Graphing small samples
I have a small data set of 14 separate times to complete a task. However I am having difficulty finding an appropriate graph to use to graph the data. If the sample was larger I would use a box plot ...
- 135
2
votes
1
answer
3k
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Correlation analysis among large number of variables
How can I check correlation among large number of variables? I can check the scatter plot between every pair of variables and pearson coefficient r if the number is ...
- 163
1
vote
1
answer
675
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How to plot three ordinal measures on a single graph?
What is the best graph? A scatter plot with a color by can be misleading. For example, let us say that we measure products such as cars on value, driving experience, and service. Since each measure is ...
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14
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3
answers
62k
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Plotting results having only mean and standard deviation
I am trying to visualize an appropriate plot for the observations in this table of means and standard deviations of recall scores:
\begin{array} {c|c c|c c|}
& \text{Control} & & \text{...
- 297
1
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0
answers
98
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How to detect different social groups in a small questionnaire dataset?
I work with a very small questionnaire dataset, in which perception of 10 respondents to the size of, say, an unseen population is quantified: The population is divided into eight sub-populations, and ...
- 11
3
votes
1
answer
153
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How to show that outliers come disproportionately often from a particular group? (context: bibliometrics)
I got the following quandary and wondering if you have any thoughts on how to show/test it.
I work with peer review data and notice that many of the most highly cited articles in my data were "first ...
- 141
2
votes
0
answers
145
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Is there any use of having dual error bars in bar charts to show both descriptive and inferential statistics?
I would like to display information both about the distribution of the population and the certainty in the measurements in the same plot. Would there be any use of having dual error bars in a barchart ...
- 151
0
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1
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3k
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8
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2
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23k
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What are some good examples of exploratory data analysis today?
Are there some papers published which illustrate EDA used to tackle substantial data problems? I am particularly looking for actual (current) data examples, where plots have been made and statistics ...