Graph plotting software free download

We recommend importing your Excel data, so that you have full access to Origin's powerful graphing and analysis environment. Origin supports importing data from a database using Database Connector. Options include:. Origin supports importing from a database , and then saving the query in the worksheet for easy editing and re-importing. The Digitizer tool in Origin allows you to perform manual or semi-automated digitizing of graph images.

Features include:. The Digitizer tool in Origin lets you generate data from images of graphs. Cartesian, ternary, and polar coordinates are supported. Digitizing methods include manual or semi-automated operations. Multiple curves can be digitized, and points can be reordered and visualized in the result graphing and data worksheet.

In a Zoom graph, a zoomed portion of a larger graph is added to explore a region of interest. Moving the cyan rectangle updates that portion of the graph shown by the inset. Press the Z or X keys and scroll the mouse wheel to quickly and interactively zoom and pan data in graph layers. The new Data Slicer feature allows you to change filter conditions directly on a graph for easy data exploration. Simply set up filters on desired worksheet columns, create a graph with one or more layers, and turn on the Data Slicer panel to control the filters.

Features include: Mini Toolbar to toggle Data Slicer panel Directly disable or enable filters from the graph Text filter has option for single entry allowing for easy switch of filter conditon Numeric filters allow several conditions including combinations with AND or OR.

Highlight a particular data plot in a graph. Also works with complex graph types such as Parallel plot. You can customize the display to include information from other columns of the worksheet, including images embedded in worksheet cells. Use Vertical Cursor for exploring data in stacked graphs in multiple graph windows simultaneously.

You can find information of one cursor or compare two cursors such as the distance. Origin and OriginPro provide a rich set of tools for performing exploratory and advanced analysis of your data.

Please view the following sections for details. Origin provides several gadgets to perform exploratory analysis by interacting with data plotted in a graph.

Origin provides a selection of Gadgets to perform exploratory analysis of data from a graph. A region of interest ROI control allows you to interactively specify the subset of data to be analyzed.

Results from the analysis are dynamically updated on top of the ROI as it is resized or moved. This image shows peak fitting being performed using the Quick Fit gadget. Two statistics gadgets are applied to this graph to report statistics in two regions of interest ROI. The Y axis is moved to separate the two regions.

Yellow ROI boxes are hidden so that they do not show in printouts. The "S" button on upper-right corner re-displays the ROI boxes when clicked. Use the Quick Peak Gadget to interactively perform peak finding, baseline subtraction, and peak integration of data from a graph. The Quick Fit Gadget lets you perform linear, polynomial, or nonlinear curve fitting on data plots in a graph.

Notice the label on top of the ROI displaying the slope and Pearson's r from a linear fit. The label updates dynamically as the ROI is moved or resized. The ROI can be rectangular, elliptical, polygon or arbitrary hand-draw shape. The tool provides statistics on data inside and outside the ROI, and also lets you copy, clear, mask or delete selected data. Origin provides various tools for linear, polynomial and nonlinear curve and surface fitting.

Fitting routines use state-of-the-art algorithms. The sections below provide a summary of key features. Graph displaying result of linear regression. Graph displaying result of polynomial regression. Origin supports Global Fitting with Parameter Sharing , where you can simultaneously fit multiple datasets with the same function and optionally share one or more fitting parameters across all datasets.

The report sheet will provide a summary table with all parameter values and errors, and a single set of fit statistics from the global fit. OriginPro supports fitting with implicit functions using the Orthogonal Distance Regression algorithm which minimizes the orthogonal distance from data to the fit curve. Errors and weighting for both X and Y data are supported. Implicit functions can have two or more variables.

Result of an Apparent Linear Fit on data plotted with logarithmic Y axis scale. The latter supports weights for both X and Y data. Select from over 12 weighting methods including instrumental, statistical, direct, arbitrary dataset, and variance. When working with replicate data, Origin can perform a Concatenated Fit where the replicates are combined internally to a single dataset.

The graph included in the report sheet can either represent the data in replicate form, or as mean values with SD or SE error bars. A Quick Sigmoidal Fit Gadget is also available. The Rank Models tool in OriginPro can fit and rank multiple functions to a dataset.

Use OriginPro to perform nonlinear surface fitting of data organized in XYZ worksheet columns , a matrix , or a virtual matrix. Select from over 20 surface functions or create your own function. For peak functions, find peaks using local maximum, partial derivative, or contour consolidation. The raw data is plotted as a color-filled contour plot, and the fit results are plotted as contour lines. Do you need to fit an implicit function to your data?

Implicit Fitting uses the Orthogonal Distance Regression algorithm to find optimal values for the fit parameters. Errors or weights are supported for both X and Y data. Origin provides several features for peak analysis, from baseline correction to peak finding, peak integration, peak deconvolution and fitting.

The following sections list the key features for peak analysis. This is a preview graph for performing peak integration using the Peak Analyzer tool.

The integration range can be applied for all peaks, or modified individually and interactively for each peak. Once you have performed baseline detection and peak finding, Origin provides several options for peak fitting: Select from over 25 built-in peak functions, or create your own peak function Fit all peaks with same function form, or assign different functions to specific peaks Peak deconvolution to resolve overlapping or hidden peaks Fix peak centers or allow them to vary by a set percentage or within a set range of values Specify bounds and constraints on peak parameters Share parameters across peaks Full control of fitting process including step-by-step iterations Detailed report including fit statistics, residuals, and graph of individual and cumulative fit lines Over 25 peak properties for reporting, including peak area by percentage, variance, skewness and peak excess Fit summary graph with customizable peak properties table.

There are several options for batch peak analysis of multiple datasets in Origin: Use integration and peak gadgets to analyze multiple curves in a graph within or across layers Use a predefined peak analysis theme to analyze multiple datasets or files Output a custom report table with peak parameters from each dataset or file. The Quick Peaks Gadget provides a quick and interactive way to perform peak analysis from a graph, using a region of interest ROI control. Batch operations such as integration of multiple curves over a desired range are also possible from this gadget.

The Peak Analyzer tool in Origin supports baseline detection, peak picking, and peak integration. In OriginPro, this tool also supports fitting multiple peaks. Peak detection methods include 2nd derivative search to detect overlapping or hidden peaks. The interface guides you step-by-step, allowing you to customize settings at each stage, and then save the settings as a theme for repeat use on similar data.

In addition, Origin provides Stats Advisor App which helps user to interactively choose the appropriate statistical test, analysis tool or App. The Stats Advisor App asks a series of questions and then suggests the appropriate tool or App to analyze your data. The graph shows a Custom Report of numerical and graphical results from multiple statistical tools, created from Origin's flexible worksheet. Once created, such reports can be automatically generated, greatly simplifying your statistical analysis tasks.

The image shows two of the embedded graphs opened for further editing. Edit an embedded graph by double-clicking on the thumbnail image in the report.

Once customizations are made, put the graphs back into the report and see your modifications. Dendrogram of spectra classification from Hierarchical Cluster Analysis of spectra. This plot can be used to classify observations across groups. This graph displays survival functions with confidence intervals, created by the Survival Analysis tool in OriginPro.

The tool also performs a log-rank test to compare the two survival functions. A preview panel is provided to enable real-time visualization of specified parameters and corresponding results. OriginPro provides several wavelet transform tools.

From simple column calculations to interpolation, calculus and integration, Origin provides a wide range of tools for mathematical analysis of worksheet and matrix data. Use the Normalize tool to normalize data in a worksheet or a graph. The F x Column Formula row in Origin worksheet lets you directly type expressions to calculate column values based on data in other columns and metadata elements. The expression can be further edited in the Set Values dialog which provides a lower panel to execute Before Formula scripts for pre-processing data.

The Set Values dialog also provides a search button to quickly find and insert functions from over built-in functions. User-defined functions can also be added for custom transforms. Auto complete helps to quickly find and enter functions as well as name ranges to complete your formula. Use Origin's Interpolation Gadget to perform interpolation and extrapolation on one or more data plots in a graph.

You can interactively select the data range using a region-of-interest ROI control. Interpolation methods include linear, spline and Akima spline.

Use the Integrate Gadget to perform integration of data curves in a graph. This software helps you beautifully graph and present your research project. The setup file is standalone and is an offline installer.

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Platforms: Windows, XP.