This is documented here, Differentiation_function.pdf, and the full set of files is here ( IgorDifferentiation.zip. So at the moment (2006-2010) we have been using a simple technique: fit a straight line to the data, and take the slope of that line to get the differential. The simplest option, to take the difference between two adjacent points, generates huge noise. However differentiating noisy data is non-trivial. Often we need to differentiate data with Igor - e.g. See also notes and examples here: NumericDemodulation.Click the help button at the bottom of the panel to bring up an Igor help file with more information on how to use the panel. If you are using Igor Pro version 6 or greater, there is a Filter Design and Application control panel that comes built in to Igor.To access the nth row in a map, find out it's dimension, create a wave then assign it to map, i.e for the 2nd row, map (first is 0th!).Use the Image Line Profiles function under the "Image" Tab.Then the "Image" tab will appear next to the "Help" tab.Go the Analysis -> Package, and select "Image Processing".See How to extract rows and columns from a matrix Use the image processing function: See Saving one graph and associated waves to a new experiment file See Arranging annotations on a graph so that they can be precisely positioned vertically and horizontally Choose Graph->Packages->Transform Axes and click the Help button in the resulting control panel.Įmbedding a LaTeX expression in their graphs, panels, layouts.If you want to plot one data set with say current on the left axis and conductance on the right: How to make one axis which is a duplicate, or a function of, another axis See for examples of programming with this function.The other place to look is in Windows->Help Windows->WM Procedures Index.) (Generally useful tip: Check out the various Packages submenus when looking for something you have a feeling must be somewhere. From Igor's Graph menu, choose Packages->Make Traces Different.If you have a lot of waves on one graph, you can get Igor to automatically make each one a different colour: You can modify the host graph in this mode.ĭifferent colours for different wavesin a graph Return to the host graph by clicking on the little graph icon located above the Tools icon.The embedded graph can only be modified in tools mode. All other options should be available to you under the "Graph" menu. To modify the embedded graph, click on it and from the top menu bar select "Graph > Modify Axis" for usual modification window (i.e.The usual "New Graph" window will appear, select the waves for the embedded graph. Anywhere on the host graph right click.A selection of tools should appear below the "Tools" icon. Select "Tools" mode by clicking on the cirlce, square and line icon (Tools icon) on the left.Press Cntr-T to bring up the tools menu.Ensure the graph which is to 'host' the embedded graph is active (click on the top bar for example).To recreate the graph, simply type nicegraph() at the command prompt.Individual items can be precisely fine tuned in the procedure. Then go to the procedure window, and there you will see all the commands to perfectly recreate your graph.Igor will ask if you want to save a graph recreation macro - answer yes and give it a name - eg nicegraph.Rather than trying to fine tweak a graph with the mouse, simply close the graph window.Ticks should be inside (unless it is a colourmap).Make sure that the "suppress preview" checkbox is tickedīasic graph presentationfor QED-style graphs.It will look bad in print and the journal may reject it. If you want to compare two experiments at the same time, open hold down the CTRL key when double clicking on the Igor Pro icon to open a second separate instance of Igor.Įxporting graphs to LaTex for papers and theses Do not export your graph as a jpor png for use in LaTex unless you are exporting a grayscale/colourmap, or have imported a bitmap image into your Igor graph/layout (ie a png, gif or jpeg). There are lots of useful hints and tips available at - look there first. Write cursor values directly into wavesĪlso Igo Pro has the full manual online as a PDF file.How to extract rows and columns from a matrix.Saving one graph and associated waves to a new experiment file.Arranging annotations on a graph so that they can be precisely positioned vertically and horizontally.Embedding a LaTeX expression in their graphs, panels, layouts.How to make one axis which is a duplicate, or a function of, another axis.Different colours for different wavesin a graph.Basic graph presentationfor QED-style graphs.Exporting graphs to LaTex for papers and theses.
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