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3 Data Analysis
Data-Analysis
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
FAQ-222 What is the difference between global fit and independent fit?
FAQ-223 How do I set the same bounds to parameters when fitting multiple datasets?
FAQ-224 How to use the parameter values from the last fit as the new starting values
FAQ-225 How do I fit all curves in my layer or graph?
FAQ-226 How do I fit a part of the data plot in my graph?
FAQ-228 How do I force my fit curve to go through a point?
FAQ-630 How to open FDF files in Windows Explorer?
FAQ-642 Which kind of weight can be used in fitting?
FAQ-654 How to fit multiple datasets?
FAQ-655 What kind of Fit Parameters (Error analysis) can be obtained in linear fit?
FAQ-1012 Why Does "Fit until converged" Generate Different Results Than Multiples of "1 Iteration" When Peak Fitting?
Curve Fitting - Fitting Results
FAQ-231 How do I know if my fit result is good?
FAQ-232 How to identify the outliers in linear fit?
FAQ-233 How to find a slope on the log-log plot?
FAQ-234 How do I compare datasets or fitting models?
FAQ-236 How to use the parameter values in the Script After Fitting
FAQ-238 Why am I not getting a good fit?
FAQ-239 What does the NLFit error code mean and what can I do?
FAQ-240 Why is my fitting function not compiling?
FAQ-241 Why does my fit curve appear jagged and not smooth?
FAQ-242 Why is my Reduced Chi-Sqr value very different from 1?
FAQ-243 Why my fit did not converge when I have exponential functions?
FAQ-244 Why can I not reproduce the fit curve using reported parameters?
FAQ-245 Why are fitted parameters different when fitting data are transformed?
FAQ-631 How to report FWHM for each peak in a single dataset Gaussian fit?
FAQ-635 How to display the fitting equation in the legend?
FAQ-647 How to identify fitting results in report table by Dataset Identilier?
FAQ-691 How to Find X/Y from Fitted Curves in Find X/Y table?
FAQ-709 How do I refer to fitting parameters in the Set Column Values dialog?
FAQ-770 How to customize the Report Table attached on the source graph for Linear and Nonlinear fitting?
FAQ-774 Can I add fitting equation with parameter values to the graph in nonlinear curve fitting?
FAQ-782 Why parameter's standard error remains unchanged when error bar is scaled?
FAQ-937 What's the difference between SE and SD of fitted parameters in curve fitting?
FAQ-965 How to turn off the fitting report table on graph?
Linear and Polynomial Fitting
FAQ-247 Why is R-Square greatly different when intercept is fixed in linear fit?
FAQ-248 How do I interpret polynomial fitting results?
FAQ-643 What is the Apparent Fit?
FAQ-645 What kind of Fit Statistics can be obtained in linear fit?
FAQ-646 How to control the Residual Analysis/Plots in linear fit?
FAQ-693 How to perform Multiple Linear Regression with boundary or constraint?
FAQ-968 How to determine whether the slope in a linear fit is significantly different from a specific value?
FAQ-1024 How to perform linear fit on a part of the log-log plot?
Nonlinear Curve Fitting
FAQ-251 How to compute EC50/IC50 in Dose Response fitting
FAQ-252 How can I quickly carry out dose response analysis?
FAQ-253 How do I perform curve fitting on my histogram plot?
FAQ-254 How do I fit a single dataset with multiple instances of one function?
FAQ-255 How do I fit replicate data?
FAQ-256 How to write linear constraints in different fitting cases
FAQ-257 How can I perform regression with multiple linear terms and obtain an analytical solution?
FAQ-258 How can I carry out nonlinear curve fit with X error?
FAQ-259 How to fit date and time data?
FAQ-261 How do I call the NAG library in my user-defined fit equation?
FAQ-262 How do I supply my own Equation and Sample Curve images for my fitting function?
FAQ-263 How to include integrate in my fitting function
FAQ-264 How to quote a built-in function when defining a user-defined function?
FAQ-265 How to define an implicit function?
FAQ-266 Why do I need to provide initial parameter estimates for my user-defined fitting
FAQ-267 How do I speed up the fitting routine for the user-defined function with integration?
FAQ-268 How to estimate initial parameters for rational functions
FAQ-269 How to define an ordinary differential equation for fitting
FAQ-501 What are the confidence intervals associated with 1σ, 2σ, 3σ, and etc. for Gaussian distribution?
FAQ-619 What is the difference between these two sigmoidal fitting function, Logistic and Bolzmann?
FAQ-653 How to use the gamma function in Origin?
FAQ-676 We are trying to use a single exponential decay equation to determine the half-life of a compound, but your equation is slightly different than the standard form. How do we calculate the half-life?
FAQ-750 How can I calculate propagation delay time between two signals?
FAQ-858 How to build up a summation fitting function or a double integral fitting funtion?
Batch Processing
FAQ-272 How do I automate repetitive tasks?
FAQ-273 How do I keep certain data when saving an Analysis Template?
FAQ-761 How to batch process multiple files in groups?
FAQ-766 How to generate a customized Word report after batch processing?
FAQ-769 Can I pre-process peak data, such as exclude unwanted data, before each analysis process?
FAQ-976 Why does my Analysis Template file keep getting bigger?
General
FAQ-275 How do I hide the Analysis Markers?
FAQ-277 How do I know if an analysis result is not up to date?
FAQ-278 How do I perform a different analysis on the same range?
FAQ-279 What is the precision of results from analysis operations?
FAQ-280 How do I perform analysis on a specific curve in my multi-curve plot?
FAQ-281 Is there a User Community site to share tools and applications?
FAQ-282 How do I convert date data from Matlab to Origin
FAQ-283 How do I convert date data from Excel to Origin
FAQ-284 Why do analysis markers look so small or so big?
FAQ-285 What are these markers and what is this lock on my graph?
FAQ-286 How do I define global variables and constants?
FAQ-287 How to change the font size of footnote in the result sheet?
FAQ-288 How to change the default value of Recalculate dropdown when open dialog?
FAQ-309 How do I carry out deconvolution?
FAQ-633 How to draw a line between two points to find the slope and y-intercept values?
FAQ-648 How to specify the destinations of the output?
FAQ-665 How do I exclude outliers from an analysis routine without deleting the data?
FAQ-696 How to customize the shaded, integrated area under a curve?
FAQ-721 How can I classify data into groups and colormap them from the graph directly?
FAQ-805 How to compare the curves before and after recalculation?
FAQ-826 How to revert the new report table Results ± Errors to old report table Results and Errors in two columns on graph?
FAQ-855 Why does my DLL for fitting work in one PC but fail in another?
FAQ-883 How to suppress the warning message dialog when I delete an analysis operation?
FAQ-891 How can I control digits display in each analysis tool?
FAQ-940 How do I highlight data points in multiple graphs simultaneously?
FAQ-965 How to turn off the fitting report table on graph?
Mathematics
FAQ-290 Where can I find a list of available mathematical functions?
FAQ-291 How do I normalize my data?
FAQ-292 How do I perform calculations using worksheet data columns?
FAQ-293 How to convert sphere coordinates to cartesian coordinates?
FAQ-687 How to calculate derivative for all datasets in graph?
FAQ-673 How can I find the x values where my data plot crosses the y=constant such as x axis?
FAQ-694 How can I calculate the parameter value in a complex equation?
FAQ-695 What is the difference between Integrate, integratexy and Integ1?
FAQ-765 How to quickly define and access Project Variables in Set Values dialog?
FAQ-961 How to get the difference or sum of two curves?
FAQ-1013 Can I use a simple formula to do simple math on columns or curves?
FAQ-1023 How do I synchronize two sensor signals recorded with different sampling rates?
Peak Analysis
FAQ-295 How do I calculate the FWHM?
FAQ-296 How do I find the area under my curve?
FAQ-297 How do I locate the peaks in my data?
FAQ-298 How do I set the bound for fitting for some functions?
FAQ-299 What are the various options for analyzing peak data?
FAQ-300 How do I perform Peak Deconvolution?
FAQ-778 How to create baseline with Asymmetric Least Squares method?
FAQ-808 Why my peak fitting with user-defined function is slow? How to speed it up?
FAQ-812 How can I plot subtracted data in result graph?
FAQ-964 Why there are negative peaks when I deconvolute peaks, how to make them always be positive?
FAQ-998 How to obtain a cumulative peak of several individual peaks?
Signal Processing
FAQ-302 How do I smooth my own data, so I don't get a new curve drawn on top?
FAQ-303 Does Origin support LOESS or LOWESS regression?
FAQ-304 Does the FFT computation truncate or pad my data?
FAQ-305 How do I compute autocorrelation on a signal?
FAQ-306 How do I perform FFT when my time data is not evenly spaced?
FAQ-307 How do I remove DC offset before performing FFT?
FAQ-308 Why is my FFT result different from that in Origin7.5?
FAQ-634 How can I smooth the contour lines in a contour plot?
FAQ-698 How can I show Pseudo-Frequency axis scale in cwt image plot?
FAQ-948 How to remove baseline for the XRD data?
Statistics
FAQ-311 Can we put results of statistics on column to a worksheet?
FAQ-312 Does Mann Whitney Test support raw data in Origin?
FAQ-313 Does Origin support Multivariate Analysis?
FAQ-314 Does Origin supports Welch's t-test?
FAQ-315 How can I align outliers in a line in box chart?
FAQ-316 How can I customize the scatter matrix plotted with the correlation coefficient tool?|
FAQ-317 How can I draw data on the top of the box chart?
FAQ-318 How can I know the best representative sample within each cluster in cluster analysis?
FAQ-319 How can I perform t-tests on rows?
FAQ-320 How can I plot a 3D histogram?
FAQ-321 How can I plot a histogram with counts as label?
FAQ-322 How can I show data from different groups within one box chart?
FAQ-323 How can I calculate a simple moving average?
FAQ-324 How can I calculate the moving median?
FAQ-325 How do I overlay a distribution curve on my histogram plot?
FAQ-326 How to add scatter label for Score Plot/Biplot in Principal Component Analysis?
FAQ-327 How to compute the critical value of t distribution?
FAQ-328 How to perform distribution fit
FAQ-329 How to plot a p-p plot with confidence intervals?
FAQ-330 How to plot the kernel density graph?
FAQ-331 What can I do if I have more than 10 columns to be run for ANOVA?
FAQ-332 What is balanced design?
FAQ-333 What is indexed versus raw data and how to I transform from one to another?
FAQ-334 Where can I find a list of available statistical functions?
FAQ-490 How do I identify and eliminate outliers?
FAQ-729 How can I put the results of Statistics on Columns in the source worksheet?
FAQ-837 How to group data into bins and sum up the data of each bins respectively?
FAQ-877 How to calculate the parameters of the correlation ellipse?
FAQ-878 How to eliminate the outliers by a user-defined defination?
FAQ-987 Why SE of mean got in ANOVA is different from the one got in statistics on column?
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Licensing and Installation
FAQ-976 Why does my Analysis Template file keep getting bigger?
FAQ-222 What is the difference between global fit and independent fit?
FAQ-223 How do I set the same bounds to parameters when fitting multiple datasets?
FAQ-224 How to use the parameter values from the last fit as the new starting values
FAQ-225 How do I fit all curves in my layer or graph?
FAQ-226 How do I fit a part of the data plot in my graph?
FAQ-228 How do I force my fit curve to go through a point?
FAQ-231 How do I know if my fit result is good?
FAQ-232 How to identify the outliers in linear fit?
FAQ-233 How to find a slope on the log-log plot?
FAQ-234 How do I compare datasets or fitting models?
FAQ-236 How to use the parameter values in the Script After Fitting
FAQ-238 Why am I not getting a good fit?
FAQ-239 What does the NLFit error code mean and what can I do?
FAQ-240 Why is my fitting function not compiling?
FAQ-241 Why does my fit curve appear jagged and not smooth?
FAQ-242 Why is my Reduced Chi-Sqr value very different from 1?
FAQ-243 Why my fit did not converge when I have exponential functions?
FAQ-244 Why can I not reproduce the fit curve using reported parameters?
FAQ-245 Why are fitted parameters different when fitting data are transformed?
FAQ-247 Why is R-Square greatly different when intercept is fixed in linear fit?
FAQ-248 How do I interpret polynomial fitting results?
FAQ-251 How to compute EC50/IC50 in Dose Response fitting
FAQ-252 How can I quickly carry out dose response analysis?
FAQ-253 How do I perform curve fitting on my histogram plot?
FAQ-254 How do I fit a single dataset with multiple instances of one function?
FAQ-255 How do I fit replicate data?
FAQ-256 How to write linear constraints in different fitting cases
FAQ-257 How can I perform regression with multiple linear terms and obtain an analytical solution?
FAQ-258 How can I carry out curve fitting with X error?
FAQ-259 How to fit date and time data?
FAQ-261 How do I call the NAG library in my user-defined fit equation?
FAQ-262 How do I supply my own Equation and Sample Curve images for my fitting function?
FAQ-263 How to include integrate in my fitting function
FAQ-264 How to quote a built-in function when defining a user-defined function?
FAQ-265 How to define an implicit function?
FAQ-266 Why do I need to provide initial parameter estimates for my user-defined fitting
FAQ-267 How do I speed up the fitting routine for the user-defined function with integration?
FAQ-268 How to estimate initial parameters for rational functions
FAQ-269 How to define an ordinary differential equation for fitting
FAQ-272 How do I automate repetitive tasks?
FAQ-273 How do I keep certain data when saving an Analysis Template?
FAQ-275 How do I hide the analysis markers and locks?
FAQ-277 How do I know if an analysis result is not up to date?
FAQ-278 How do I perform a different analysis on the same range?
FAQ-279 What is the precision of results from analysis operations?
FAQ-280 How do I perform analysis on a specific curve in my multi-curve plot?
FAQ-281 Is there a User Community site to share tools and applications?
FAQ-282 How do I convert date data from Matlab to Origin
FAQ-283 How do I convert date data from Excel to Origin
FAQ-284 Why do analysis markers look so small or so big?
FAQ-285 What are these markers and what is this lock on my graph?
FAQ-287 How to change the font size of footnote in the result sheet?
FAQ-288 How to change the default value of Recalculate dropdown when open dialog?
FAQ-290 Where can I find a list of available mathematical functions?
FAQ-291 How do I normalize my data?
FAQ-292 How do I perform calculations using worksheet data columns?
FAQ-293 How to convert sphere coordinates to cartesian coordinates?
FAQ-295 How do I calculate the FWHM?
FAQ-296 How do I find the area under my curve?
FAQ-297 How do I locate the peaks in my data?
FAQ-298 How do I set the bound for fitting for some functions?
FAQ-299 What are the various options for analyzing peak data?
FAQ-300 How do I perform Peak Deconvolution?
FAQ-302 How do I smooth my own data, so I don't get a new curve drawn on top?
FAQ-303 Does Origin support LOESS or LOWESS regression?
FAQ-304 Does the FFT computation truncate or pad my data?
FAQ-305 How do I compute autocorrelation on a signal?
FAQ-306 How do I perform FFT when my time data is not evenly spaced?
FAQ-307 How do I remove DC offset before performing FFT?
FAQ-308 Why is my FFT result different from that in Origin7.5?
FAQ-309 How do I carry out deconvolution?
FAQ-311 Can we put results of statistics on column to a worksheet?
FAQ-312 Does Mann Whitney Test support raw data in Origin?
FAQ-313 Does Origin support Multivariate Analysis?
FAQ-314 Does Origin supports Welch's t-test?
FAQ-315 How can I align outliers in a line in box chart?
FAQ-316 How can I customize the scatter matrix plotted with the correlation coefficient tool?
FAQ-317 How can I draw data on the top of the box chart?
FAQ-318 How can I know the best representative sample within each cluster in cluster analysis?
FAQ-319 How can I perform t-tests on rows?
FAQ-320 How can I plot a 3D histogram?
FAQ-321 How can I plot a histogram with counts as label?
FAQ-322 How can I show data from different groups within one box chart?
FAQ-323 How to perform column calculation over a sliding window, such as moving average or moving standard deviation?
FAQ-324 How can I calculate the moving median?
FAQ-325 How do I overlay a distribution curve on my histogram plot?
FAQ-326 How to add scatter label for Score Plot/Biplot in Principal Component Analysis?
FAQ-327 How to compute the critical value of t distribution?
FAQ-328 How to perform distribution fit
FAQ-329 How to plot a p-p plot with confidence band?
FAQ-330 How to plot the kernel density graph?
FAQ-331 What can I do if I have more than 10 columns to be run for ANOVA?
FAQ-332 What is balanced design in repeated measure analysis?
FAQ-333 What is indexed versus raw data and how to I transform from one to another?
FAQ-334 Where can I find a list of available statistical functions?
FAQ-490 How do I identify and eliminate outliers?
FAQ-501 What are the confidence intervals associated with 1σ, 2σ, 3σ, and etc. for Gaussian distribution?
FAQ-619 What is the difference between these two sigmoidal fitting function, Logistic and Bolzmann?
FAQ-630 How to open FDF files in Windows Explorer?
FAQ-631 How to report FWHM for each peak in a single dataset Gaussian fit?
FAQ-633 How to draw a line between two points to find the slope and y-intercept values?
FAQ-634 How can I smooth the contour lines in a contour plot?
FAQ-635 How to display the fitting equation in the legend?
FAQ-642 Which kind of weight can be used in fitting?
FAQ-643 What is the Apparent Fit?
FAQ-645 What kind of Fit Statistics can be obtained in linear fit?
FAQ-646 How to control the Residual Analysis/Plots in linear fit?
FAQ-647 How to identify fitting results in report table by Dataset Identilier?
FAQ-648 How to specify the destinations of the output?
FAQ-653 How to use the gamma function in Origin?
FAQ-654 How to fit multiple datasets?
FAQ-655 What kind of Fit Parameters (Error analysis) can be obtained in linear fit?
FAQ-665 How do I exclude outliers from an graphing or analysis routine without deleting the data?
FAQ-673 How can I find the x values where my data plot crosses the y=constant such as x axis?
FAQ-676 We are trying to use a single exponential decay equation to determine the half-life of a compound, but your equation is slightly different than the standard form. How do we calculate the half-life?
FAQ-687 How to calculate derivative for all datasets in graph?
FAQ-691 How to Find X/Y from Fitted Curves in Find X/Y table?
FAQ-693 How to perform Multiple Linear Regression with boundary or constraint?
FAQ-694 How can I calculate the parameter value in a complex equation?
FAQ-695 What is the difference between Integrate, integratexy and Integ1?
FAQ-696 How to customize the shaded, integrated area under a curve?
FAQ-698 How can I show Pseudo-Frequency axis scale in cwt image plot?
FAQ-709 How do I refer to fitting parameters in the Set Column Values dialog?
FAQ-721 How can I classify data into groups and colormap them from the graph directly?
FAQ-729 How can I put the results of Statistics on Columns in the source worksheet?
FAQ-750 How can I calculate propagation delay time between two signals?
FAQ-761 How to batch process multiple files in groups?
FAQ-765 How to quickly define and access Project Variables in Set Values dialog?
FAQ-766 How to generate a customized Word report after batch processing?
FAQ-769 Can I pre-process peak data, such as exclude unwanted data, before each analysis process?
FAQ-770 How to customize the Report Table attached on the source graph for Linear and Nonlinear fitting?
FAQ-774 Can I add fitting equation with parameter values to the graph in nonlinear curve fitting?
FAQ-778 How to create baseline with Asymmetric Least Squares method?
FAQ-782 Why parameter's standard error remains the same when error bar largely changes?
FAQ-805 How to compare the curves before and after recalculation?
FAQ-808 Why my peak fitting with user-defined function is slow? How to speed it up?
FAQ-812 How can I plot subtracted data in result graph?
FAQ-826 How to revert the new report table Results ± Errors to old report table Results and Errors in two columns on graph?
FAQ-837 How to group data into bins and sum up the data of each bins respectively?
FAQ-855 Why does my DLL for fitting work in one PC but fail in another?
FAQ-858 How to build up a summation fitting function or a double integral fitting funtion?
FAQ-877 How to calculate the parameters of the correlation ellipse?
FAQ-878 How to eliminate the outliers by a user-defined defination?
FAQ-883 How to suppress the warning message dialog?
FAQ-884 How to get a good fit with a very large or a very small parameter?
FAQ-891 How can I control digits display in each analysis tool?
FAQ-894 How to fit 3D XYZ surface with X/Y/Z error?
FAQ-940 How do I highlight data points in multiple graphs simultaneously?
FAQ-937 What's the difference between SE and SD of fitted parameters in curve fitting?
FAQ-948 How to remove baseline for the XRD data?
FAQ-964 Why there are negative peaks when I deconvolute peaks, how to make them always be positive?
FAQ-965 How to turn off the fitting report table on graph?
FAQ-968 How to determine whether the slope in a linear fit is significantly different from a specific value?
FAQ-987 Why SE of mean got in ANOVA is different from the one got in statistics on column?
FAQ-1002 Are there validation results for Origin's analysis tools?
FAQ-1012 Why Does "Fit until converged" Generate Different Results Than Multiples of "1 Iteration" When Peak Fitting?
FAQ-1023 How do I synchronize two sensor signals recorded with different sampling rates?
FAQ-1024 How to perform linear fit on a part of the log-log plot?
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