Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [scatterplot]

Pairs of (x,y) values plotted as points in Cartesian coordinates. Widely used as an exploratory and diagnostic tool.

A summary of bivariate data where pairs of observations are plotted on an x-y plane (i.e. in Cartesian coordinates), this is a very widely used tool, particularly in data visualization, exploratory data analysis and diagnostics.

300 questions
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Interpreting 3D scatter plot

I'm reading a book on data-analysis and in my book I have the following picture of 3-dimensional data and its scatter plot: Could anyone help me understand how is the scatter plot interpreted? It confuses me at the moment...in other words: "How to…
jjepsuomi
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Ways to show how well or badly predicted data reflect observed data

I have observed rainfall data and would like to know how well they represent the predicted data. My first idea was to show the data on a scatter plot. Plotting x =observed vs y = predicted I set the axis to equal length as well as that the plots are…
Mr.Man
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1 answer

Fit circle of fixed diameter over most dense area of scatterplot

I am looking for a function that would help make a circle (of fixed diameter) over the most data points (highest density) on a two-dimensional scatter plot. I was hoping someone would at least point me in the direction I should be looking. I'm…
Ranfan
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Interpreting Non-Linear Relationship from Scatter Plot

The scatter plot that I have seems very likely to have a non-linear relationship. I would like to know what is the best way to explain the relationship between both variables in the scatter plot below without performing any kind of transformation on…
dee cue
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1 answer

How do I know what side is skewed?

If I look at a quantile plot comparing normal distribution and other data, and some of the points lie below or above the line, how do I know what that represents? What I am asking is - how do I know if the data set has a left or right skew?
Luc
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Interpreting scatterplots

I am working with an agricultural data with the aim to establishing bean-lines that are resistant to bruchid infestation. I want to find the relationship between some variables (mostly number of holes in a seed against the number of insects that…
lightbringer24
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Any transformation or technique to better represent data clumped in the bottom left corner of scatter plot?

I have a scatter plot where the data are distributed very unevenly. If you can imagine the ares of the scatter plot divided into 4 quadrants, about half of the data (i.e., half of the data points) like in the bottom-left or southwest quadrant. Apart…
user2621147
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Matrix Scatterplot with too many points

I am having some troubles with my scatterplot matrix. I've already looked at the other similar questions but it seems that I still don't understand how to deal with the situation when you have too many points in your scatterplot matrix. Here is my…
Nina Genné
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Interpretation of a scatter plot: an unclear correlation

Cross-reference overlapping question: "Correct or incorrect interpretation of scatter plots: a comparison among the Pearson, Spearman and Kendall correlations" I have this scatter plot matrix among 3 variables/quantities: In books/guides about…
paul
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Data Visualization - how to display error of a color scale?

I've been turning this around in my head and I think the answer is to ultimately tabulate the data, but it's an interesting question so I'll still post it. I have three sets of data of equal length. Two of these sets, call them X and Y, are plotted…
Ben S.
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2 answers

How to present several ANCOVA findings

I have six scatterplots (such as the one below) that show an insignificant interaction of the factor (X2) (e.g. gender, age, education etc.) with the predictor (X1) on Y. (X1 is significant.) The simplest interpretation is that as X1 increases, Y…
Adhesh Josh
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Scatterplot R2 linear result

If I have an R2 linear result of .004 showing up on my scatterplot, what does it mean? I am having a difficult time interpreting my scatterplot.
user162996
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What does this scatterplot mean? Uniform distributions?

I am very new to statistics and prob theory: I am looking at a scatter plot of two random variables, both uniformly distributed on $(0,1)$. The plot is approximatively a straight line, and the book says this is an indicator of independence. Why? I…
Polak
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