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3 Data Analysis
DataAnalysis
Contents
1
Curve Fitting  Fitting Control
2
Curve Fitting  Fitting Results
3
Linear and Polynomial Fitting
4
Nonlinear Curve Fitting
5
Batch Processing
6
General
7
Mathematics
8
Peak Analysis
9
Signal Processing
10
Statistics
Curve Fitting  Fitting Control
FAQ222 What is the difference between global fit and independent fit?
FAQ223 How do I set the same bounds to parameters when fitting multiple datasets?
FAQ224 How to use the parameter values from the last fit as the new starting values
FAQ225 How do I fit all curves in my layer or graph?
FAQ226 How do I fit a part of the data plot in my graph?
FAQ228 How do I force my fit curve to go through a point?
FAQ630 How to open FDF files in Windows Explorer?
FAQ642 Which kind of weight can be used in fitting?
FAQ654 How to fit multiple datasets?
FAQ655 What kind of Fit Parameters (Error analysis) can be obtained in linear fit?
FAQ1012 Why Does "Fit until converged" Generate Different Results Than Multiples of "1 Iteration" When Peak Fitting?
FAQ1085 Why does my fit fail with no iterations and a message saying "reason unknown"?
Curve Fitting  Fitting Results
FAQ231 How do I know if my fit result is good?
FAQ232 How to identify the outliers in linear fit?
FAQ233 How to find a slope on the loglog plot?
FAQ234 How do I compare datasets or fitting models?
FAQ236 How to use the parameter values in the Script After Fitting
FAQ238 Why am I not getting a good fit?
FAQ239 What does the NLFit error code mean and what can I do?
FAQ240 Why is my fitting function not compiling?
FAQ241 Why does my fit curve appear jagged and not smooth?
FAQ242 Why is my Reduced ChiSqr value very different from 1?
FAQ243 Why my fit did not converge when I have exponential functions?
FAQ244 Why can I not reproduce the fit curve using reported parameters?
FAQ245 Why are fitted parameters different when fitting data are transformed?
FAQ631 How to report FWHM for each peak in a single dataset Gaussian fit?
FAQ635 How to display the fitting equation in the legend?
FAQ647 How to identify fitting results in report table by Dataset Identilier?
FAQ691 How to Find X/Y from Fitted Curves in Find X/Y table?
FAQ709 How do I refer to fitting parameters in the Set Column Values dialog?
FAQ770 How to customize the Report Table attached on the source graph for Linear and Nonlinear fitting?
FAQ774 Can I add fitting equation with parameter values to the graph in nonlinear curve fitting?
FAQ782 Why parameter's standard error remains unchanged when error bar is scaled?
FAQ937 What's the difference between SE and SD of fitted parameters in curve fitting?
FAQ965 How to turn off the fitting report table on graph?
FAQ1082 What's the difference between SE and SEM?
Linear and Polynomial Fitting
FAQ247 Why is RSquare greatly different when intercept is fixed in linear fit?
FAQ248 How do I interpret polynomial fitting results?
FAQ643 What is the Apparent Fit?
FAQ645 What kind of Fit Statistics can be obtained in linear fit?
FAQ646 How to control the Residual Analysis/Plots in linear fit?
FAQ693 How to perform Multiple Linear Regression with boundary or constraint?
FAQ968 How to determine whether the slope in a linear fit is significantly different from a specific value?
FAQ1024 How to perform linear fit on a part of the loglog plot?
Nonlinear Curve Fitting
FAQ251 How to compute EC50/IC50 in Dose Response fitting
FAQ252 How can I quickly carry out dose response analysis?
FAQ253 How do I perform curve fitting on my histogram plot?
FAQ254 How do I fit a single dataset with multiple instances of one function?
FAQ255 How do I fit replicate data?
FAQ256 How to write linear constraints in different fitting cases
FAQ257 How can I perform regression with multiple linear terms and obtain an analytical solution?
FAQ258 How can I carry out nonlinear curve fit with X error?
FAQ259 How to fit date and time data?
FAQ261 How do I call the NAG library in my userdefined fit equation?
FAQ262 How do I supply my own Equation and Sample Curve images for my fitting function?
FAQ263 How to include integrate in my fitting function
FAQ264 How to quote a builtin function when defining a userdefined function?
FAQ265 How to define an implicit function?
FAQ266 Why do I need to provide initial parameter estimates for my userdefined fitting
FAQ267 How do I speed up the fitting routine for the userdefined function with integration?
FAQ268 How to estimate initial parameters for rational functions
FAQ269 How to define an ordinary differential equation for fitting
FAQ501 What are the confidence intervals associated with 1σ, 2σ, 3σ, and etc. for Gaussian distribution?
FAQ619 What is the difference between these two sigmoidal fitting function, Logistic and Bolzmann?
FAQ653 How to use the gamma function in Origin?
FAQ676 We are trying to use a single exponential decay equation to determine the halflife of a compound, but your equation is slightly different than the standard form. How do we calculate the halflife?
FAQ750 How can I calculate propagation delay time between two signals?
FAQ858 How to build up a summation fitting function or a double integral fitting funtion?
FAQ1177 How to define a constant related to input data in a fitting function?
Batch Processing
FAQ272 How do I automate repetitive tasks?
FAQ273 How do I keep certain data when saving an Analysis Template?
FAQ761 How to batch process multiple files in groups?
FAQ766 How to generate a customized Word report after batch processing?
FAQ769 Can I preprocess peak data, such as exclude unwanted data, before each analysis process?
FAQ976 Why does my Analysis Template file keep getting bigger?
FAQ1037 How to export graph during Batch Process?
General
FAQ275 How do I hide the Analysis Markers?
FAQ277 How do I know if an analysis result is not up to date?
FAQ278 How do I perform a different analysis on the same range?
FAQ279 What is the precision of results from analysis operations?
FAQ280 How do I perform analysis on a specific curve in my multicurve plot?
FAQ281 Is there a User Community site to share tools and applications?
FAQ282 How do I convert date data from Matlab to Origin
FAQ283 How do I convert date data from Excel to Origin
FAQ284 Why do analysis markers look so small or so big?
FAQ285 What are these markers and what is this lock on my graph?
FAQ286 How do I define global variables and constants?
FAQ287 How to change the font size of footnote in the result sheet?
FAQ288 How to change the default value of Recalculate dropdown when open dialog?
FAQ309 How do I carry out deconvolution?
FAQ633 How to draw a line between two points to find the slope and yintercept values?
FAQ648 How to specify the destinations of the output?
FAQ665 How do I exclude outliers from an analysis routine without deleting the data?
FAQ696 How to customize the shaded, integrated area under a curve?
FAQ721 How can I classify data into groups and colormap them from the graph directly?
FAQ805 How to compare the curves before and after recalculation?
FAQ826 How to revert the new report table Results ± Errors to old report table Results and Errors in two columns on graph?
FAQ855 Why does my DLL for fitting work in one PC but fail in another?
FAQ883 How to suppress the warning message dialog when I delete an analysis operation?
FAQ891 How can I control digits display in each analysis tool?
FAQ940 How do I highlight data points in multiple graphs simultaneously?
FAQ965 How to turn off the fitting report table on graph?
FAQ1036 How to go back to the source sheet or graph?
FAQ1057 How to link to local CSS and other files in HTML Reports?
FAQ1098 How does "Duplicate this Operation" work?
Mathematics
FAQ290 Where can I find a list of available mathematical functions?
FAQ291 How do I normalize my data?
FAQ292 How do I perform calculations using worksheet data columns?
FAQ293 How to convert sphere coordinates to cartesian coordinates?
FAQ687 How to calculate derivative for all datasets in graph?
FAQ673 How can I find the x values where my data plot crosses the y=constant such as x axis?
FAQ694 How can I calculate the parameter value in a complex equation?
FAQ695 What is the difference between Integrate, integratexy and Integ1?
FAQ765 How to quickly define and access Project Variables in Set Values dialog?
FAQ961 How to get the difference or sum of two curves?
FAQ1013 Can I use a simple formula to do simple math on columns or curves?
FAQ1023 How do I synchronize two sensor signals recorded with different sampling rates?
FAQ1183 How to get the Z data in a specific X/Y value in Contour plot?
Peak Analysis
FAQ295 How do I calculate the FWHM?
FAQ296 How do I find the area under my curve?
FAQ297 How do I locate the peaks in my data?
FAQ298 How do I set the bound for fitting for some functions?
FAQ299 What are the various options for analyzing peak data?
FAQ300 How do I perform Peak Deconvolution?
FAQ778 How to create baseline with Asymmetric Least Squares method?
FAQ808 Why my peak fitting with userdefined function is slow? How to speed it up?
FAQ812 How can I plot subtracted data in result graph?
FAQ964 Why there are negative peaks when I deconvolute peaks, how to make them always be positive?
Signal Processing
FAQ302 How do I smooth my own data, so I don't get a new curve drawn on top?
FAQ303 Does Origin support LOESS or LOWESS regression?
FAQ304 Does the FFT computation truncate or pad my data?
FAQ305 How do I compute autocorrelation on a signal?
FAQ306 How do I perform FFT when my time data is not evenly spaced?
FAQ307 How do I remove DC offset before performing FFT?
FAQ308 Why is my FFT result different from that in Origin7.5?
FAQ634 How can I smooth the contour lines in a contour plot?
FAQ698 How can I show PseudoFrequency axis scale in cwt image plot?
FAQ948 How to remove baseline for the XRD data?
Statistics
FAQ311 Can we put results of statistics on column to a worksheet?
FAQ312 Does Mann Whitney Test support raw data in Origin?
FAQ313 Does Origin support Multivariate Analysis?
FAQ314 Does Origin supports Welch's ttest?
FAQ315 How can I align outliers in a line in box chart?
FAQ316 How can I customize the scatter matrix plotted with the correlation coefficient tool?
FAQ317 How can I draw data on the top of the box chart?
FAQ318 How can I know the best representative sample within each cluster in cluster analysis?
FAQ319 How can I perform ttests on rows?
FAQ320 How can I plot a 3D histogram?
FAQ321 How can I plot a histogram with counts as label?
FAQ322 How can I show data from different groups within one box chart?
FAQ323 How can I calculate a simple moving average?
FAQ324 How can I calculate the moving median?
FAQ325 How do I overlay a distribution curve on my histogram plot?
FAQ326 How to add scatter label for Score Plot/Biplot in Principal Component Analysis?
FAQ327 How to compute the critical value of t distribution?
FAQ328 How to perform distribution fit
FAQ329 How to plot a pp plot with confidence intervals?
FAQ330 How to plot the kernel density graph?
FAQ331 What can I do if I have more than 10 columns to be run for ANOVA?
FAQ332 What is balanced design?
FAQ333 What is indexed versus raw data and how to I transform from one to another?
FAQ334 Where can I find a list of available statistical functions?
FAQ490 How do I identify and eliminate outliers?
FAQ729 How can I put the results of Statistics on Columns in the source worksheet?
FAQ837 How to group data into bins and sum up the data of each bins respectively?
FAQ877 How to calculate the parameters of the correlation ellipse?
FAQ878 How to eliminate the outliers by a userdefined defination?
FAQ987 Why SE of mean got in ANOVA is different from the one got in statistics on column?
FAQ1156 How to get "exact P values" in ANOVA tools?
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Licensing and Installation
FAQ976 Why does my Analysis Template file keep getting bigger?
FAQ222 What is the difference between global fit and independent fit?
FAQ223 How do I set the same bounds to parameters when fitting multiple datasets?
FAQ224 How to use the parameter values from the last fit as the new starting values
FAQ225 How do I fit all curves in my layer or graph?
FAQ226 How do I fit a part of the data plot in my graph?
FAQ228 How do I force my fit curve to go through a point?
FAQ231 How do I know if my fit result is good?
FAQ232 How to identify the outliers in linear fit?
FAQ233 How to find a slope on the loglog plot?
FAQ234 How do I compare datasets or fitting models?
FAQ236 How to use the parameter values in the Script After Fitting
FAQ238 Why am I not getting a good fit?
FAQ239 What does the NLFit error code mean and what can I do?
FAQ240 Why is my fitting function not compiling?
FAQ241 Why does my fit curve appear jagged and not smooth?
FAQ242 Why is my Reduced ChiSqr value very different from 1?
FAQ243 Why my fit did not converge when I have exponential functions?
FAQ244 Why can I not reproduce the fit curve using reported parameters?
FAQ245 Why are fitted parameters different when fitting data are transformed?
FAQ247 Why is RSquare greatly different when intercept is fixed in linear fit?
FAQ248 How do I interpret polynomial fitting results?
FAQ251 How to compute EC50/IC50 in Dose Response fitting
FAQ252 How can I quickly carry out dose response analysis?
FAQ253 How do I perform curve fitting on my histogram plot?
FAQ254 How do I fit a single dataset with multiple instances of one function?
FAQ255 How do I fit replicate data?
FAQ256 How to write linear constraints in different fitting cases
FAQ257 How can I perform regression with multiple linear terms and obtain an analytical solution?
FAQ258 How can I carry out curve fitting with X error?
FAQ259 How to fit date and time data?
FAQ261 How do I call the NAG library in my userdefined fit equation?
FAQ262 How do I supply my own Equation and Sample Curve images for my fitting function?
FAQ263 How to include integrate in my fitting function
FAQ264 How to quote a builtin function when defining a userdefined function?
FAQ265 How to define an implicit function?
FAQ266 Why do I need to provide initial parameter estimates for my userdefined fitting
FAQ267 How do I speed up the fitting routine for the userdefined function with integration?
FAQ268 How to estimate initial parameters for rational functions
FAQ269 How to define an ordinary differential equation for fitting
FAQ272 How do I automate repetitive tasks?
FAQ273 How do I keep certain data when saving an Analysis Template?
FAQ275 How do I hide the analysis markers and locks?
FAQ277 How do I know if an analysis result is not up to date?
FAQ278 How do I perform a different analysis on the same range?
FAQ279 What is the precision of results from analysis operations?
FAQ280 How do I perform analysis on a specific curve in my multicurve plot?
FAQ281 Is there a User Community site to share tools and applications?
FAQ282 How do I convert date data from Matlab to Origin
FAQ283 How do I convert date data from Excel to Origin
FAQ284 Why do analysis markers look so small or so big?
FAQ285 What are these markers and what is this lock on my graph?
FAQ287 How to change the font size of footnote in the result sheet?
FAQ288 How to change the default value of Recalculate dropdown when open dialog?
FAQ290 Where can I find a list of available mathematical functions?
FAQ291 How do I normalize my data?
FAQ292 How do I perform calculations using worksheet data columns?
FAQ293 How to convert sphere coordinates to cartesian coordinates?
FAQ295 How do I calculate the FWHM?
FAQ296 How do I find the area under my curve?
FAQ297 How do I locate the peaks in my data?
FAQ298 How do I set the bound for fitting for some functions?
FAQ299 What are the various options for analyzing peak data?
FAQ300 How do I perform Peak Deconvolution?
FAQ302 How do I smooth my own data, so I don't get a new curve drawn on top?
FAQ303 Does Origin support LOESS or LOWESS regression?
FAQ304 Does the FFT computation truncate or pad my data?
FAQ305 How do I compute autocorrelation on a signal?
FAQ306 How do I perform FFT when my time data is not evenly spaced?
FAQ307 How do I remove DC offset before performing FFT?
FAQ308 Why is my FFT result different from that in Origin7.5?
FAQ309 How do I carry out deconvolution?
FAQ311 Can we put results of statistics on column to a worksheet?
FAQ312 Does Mann Whitney Test support raw data in Origin?
FAQ313 Does Origin support Multivariate Analysis?
FAQ314 Does Origin supports Welch's ttest?
FAQ315 How can I align outliers in a line in box chart?
FAQ316 How can I customize the scatter matrix plotted with the correlation coefficient tool?
FAQ317 How do I get data to draw on top of the box/bar + data charts?
FAQ318 How can I know the best representative sample within each cluster in cluster analysis?
FAQ319 How can I perform ttests on rows?
FAQ320 How can I plot a 3D histogram?
FAQ321 How can I plot a histogram with counts as label?
FAQ322 How can I show data from different groups within one box chart?
FAQ323 How to perform column calculation over a sliding window, such as moving average or moving standard deviation?
FAQ324 How can I calculate the moving median?
FAQ325 How do I overlay a distribution curve on my histogram plot?
FAQ326 How to add scatter label for Score Plot/Biplot in Principal Component Analysis?
FAQ327 How to compute the critical value of t distribution?
FAQ328 How to perform distribution fit
FAQ329 How to plot a pp plot with confidence band?
FAQ330 How to plot the kernel density graph?
FAQ331 What can I do if I have more than 10 columns to be run for ANOVA?
FAQ332 What is balanced design in repeated measure analysis?
FAQ333 What is indexed versus raw data and how to I transform from one to another?
FAQ334 Where can I find a list of available statistical functions?
FAQ490 How do I identify and eliminate outliers?
FAQ501 What are the confidence intervals associated with 1σ, 2σ, 3σ, and etc. for Gaussian distribution?
FAQ619 What is the difference between these two sigmoidal fitting function, Logistic and Bolzmann?
FAQ630 How to open FDF files in Windows Explorer?
FAQ631 How to report FWHM for each peak in a single dataset Gaussian fit?
FAQ633 How to draw a line between two points to find the slope and yintercept values?
FAQ634 How can I smooth the contour lines in a contour plot?
FAQ635 How to display the fitting equation in the legend?
FAQ642 Which kind of weight can be used in fitting?
FAQ643 What is the Apparent Fit?
FAQ645 What kind of Fit Statistics can be obtained in linear fit?
FAQ646 How to control the Residual Analysis/Plots in linear fit?
FAQ647 How to identify fitting results in report table by Dataset Identilier?
FAQ648 How to specify the destinations of the output?
FAQ653 How to use the gamma function in Origin?
FAQ654 How to fit multiple datasets?
FAQ655 What kind of Fit Parameters (Error analysis) can be obtained in linear fit?
FAQ665 How do I exclude outliers from an graphing or analysis routine without deleting the data?
FAQ673 How can I find the x values where my data plot crosses the y=constant such as x axis?
FAQ676 We are trying to use a single exponential decay equation to determine the halflife of a compound, but your equation is slightly different than the standard form. How do we calculate the halflife?
FAQ687 How to calculate derivative for all datasets in graph?
FAQ691 How to Find X/Y from Fitted Curves in Find X/Y table?
FAQ693 How to perform Multiple Linear Regression with boundary or constraint?
FAQ694 How can I calculate the parameter value in a complex equation?
FAQ695 What is the difference between Integrate, integratexy and Integ1?
FAQ696 How to customize the shaded, integrated area under a curve?
FAQ698 How can I show PseudoFrequency axis scale in cwt image plot?
FAQ709 How do I refer to fitting parameters in the Set Column Values dialog?
FAQ721 How can I classify data into groups and colormap them from the graph directly?
FAQ729 How can I put the results of Statistics on Columns in the source worksheet?
FAQ750 How can I calculate propagation delay time between two signals?
FAQ761 How to batch process multiple files in groups?
FAQ765 How to quickly define and access Project Variables in Set Values dialog?
FAQ766 How to generate a customized Word report after batch processing?
FAQ769 Can I preprocess peak data, such as exclude unwanted data, before each analysis process?
FAQ770 How to customize the Report Table attached on the source graph for Linear and Nonlinear fitting?
FAQ774 Can I add fitting equation with parameter values to the graph in nonlinear curve fitting?
FAQ778 How to create baseline with Asymmetric Least Squares method?
FAQ782 Why parameter's standard error remains the same when error bar largely changes?
FAQ805 How to compare the curves before and after recalculation?
FAQ808 Why my peak fitting with userdefined function is slow? How to speed it up?
FAQ812 How can I plot subtracted data in result graph?
FAQ826 How to revert the new report table Results ± Errors to old report table Results and Errors in two columns on graph?
FAQ837 How to group data into bins and sum up the data of each bins respectively?
FAQ855 Why does my DLL for fitting work in one PC but fail in another?
FAQ858 How to build up a summation fitting function or a double integral fitting funtion?
FAQ877 How to calculate the parameters of the correlation ellipse?
FAQ878 How to eliminate the outliers by a userdefined defination?
FAQ883 How to suppress the warning message dialog?
FAQ884 How to get a good fit with a very large or a very small parameter?
FAQ891 How can I control digits display in each analysis tool?
FAQ894 How to fit 3D XYZ surface with X/Y/Z error?
FAQ940 How do I highlight data points in multiple graphs simultaneously?
FAQ937 What's the difference between SE and SD of fitted parameters in curve fitting?
FAQ948 How to remove baseline for the XRD data?
FAQ964 Why there are negative peaks when I deconvolute peaks, how to make them always be positive?
FAQ965 How to turn off the fitting report table on graph?
FAQ968 How to determine whether the slope in a linear fit is significantly different from a specific value?
FAQ987 Why SE of mean got in ANOVA is different from the one got in statistics on column?
FAQ1002 Are there validation results for Origin's analysis tools?
FAQ1012 Why Does "Fit until converged" Generate Different Results Than Multiples of "1 Iteration" When Peak Fitting?
FAQ1023 How do I synchronize two sensor signals recorded with different sampling rates?
FAQ1024 How to perform linear fit on a part of the loglog plot?
FAQ1036 How to go back to the source sheet or graph?
FAQ1037 How to export graph during Batch Process?
FAQ1057 How to link to local CSS and other files in HTML Reports?
FAQ1082 What's the difference between SE and SEM?
FAQ1085 Why does my fit fail with no iterations and a message saying "reason unknown"?
FAQ1098 How does "Duplicate this Operation" work?
FAQ1118 How to fit large X/Y data?
FAQ1156 How to get "exact P values" in ANOVA tools?
FAQ1177 How to define a constant related to input data in a fitting function?
FAQ1183 How to get the Z data in a specific X/Y value in Contour plot?
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