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bharathj
India
3 Posts |
 Posted - 08/20/2025 : 06:19:21 AM
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Q. What is the difference between the 2D histogram vs Statistical histogram plot?
Q. If I do the gaussian distribution fit using both the histograms the base line of fit on both sides are not equal while doing this using statistical histogram option
whereas using the non-linear curve fitting in 2D (column histogram graph) the base line for the fit is equal?
kindly anyone give me the solution and answer for above questions and say how the data are plotted while plotting with these two options.
Bharath |
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NadeeshaSupport
USA
7 Posts |
Posted - 08/20/2025 : 10:53:02 AM
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Hi Bharath,
A. The 2D histogram is used to get a visual overview of two variables, using a density plot and accompanying heatmap. The statistical histogram is used for a single variable. I have an example opju that looks at height and weight data.
A. The Gaussian distribution fit based on the histogram depends on the bins and frequency counts. Whereas the Gaussian distribution fit based on the non-linear curve fitting option is using the raw data. The first option, the histogram, is used to get a visual overview of your data while the second option is more accurate and should be used for your analysis.
Thanks,
Nadeesha |
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NadeeshaSupport
USA
7 Posts |
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bharathj
India
3 Posts |
Posted - 08/22/2025 : 02:25:53 AM
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quote:
Originally posted by NadeeshaSupport
Hi Bharath,
A. The 2D histogram is used to get a visual overview of two variables, using a density plot and accompanying heatmap. The statistical histogram is used for a single variable. I have an example opju that looks at height and weight data.
A. The Gaussian distribution fit based on the histogram depends on the bins and frequency counts. Whereas the Gaussian distribution fit based on the non-linear curve fitting option is using the raw data. The first option, the histogram, is used to get a visual overview of your data while the second option is more accurate and should be used for your analysis.
Thanks,
Nadeesha
Thank you so much Nadeesha it was helpful.
can you kindly answer me these questions for the plots that
Q. how these two graphs (plot and plot2 are plotted
Q. what is happening at y axis (frequency of occurence)[plot2 file]? Q. Can u kindly explain by comparing graphs from files plot1 and plot2 that what happens at y axis (frequency of occurence)?https://my.originlab.com/ftp/forum_and_kbase/Images/plots1.ziphttps://my.originlab.com/ftp/forum_and_kbase/Images/plots2.zip
Bharath |
Edited by - bharathj on 08/22/2025 02:33:18 AM |
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NadeeshaSupport
USA
7 Posts |
Posted - 08/22/2025 : 09:48:54 AM
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Hi Bharath,
A. Plot by selecting data column, then click on Plot menu -> Statistical -> Histogram. Double click the bars to open the Plot Details dialog. Click on the tab Data. Under Data Height, select Relative Frequency.
A. Click on the tab Label, Enable, and select Count as the option under Show. Relative frequency plots the proportion of data points in the bin. If you add bar heights across bins, they sum to 1.
Thanks,
Nadeesha |
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Topic |
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statistical Vs 2D histogram how it plots the data