Asymmetric Error Bars Idl
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Toolkit APIs ENVI API ESE API Libraries Astronomy Library Beaumont Library Bowman Library Catalyst Library Coyote Library Dáithí Library Galloy Library JBIU Library JHUAPLS1R Library Mankoff Library Markwardt Library Motley Library Salvaggio Library ENVI Using ENVI Modules Atmospheric Correction DEM Extraction ENVI Photogrammetry Feature Extraction (FX) NITF ENVI API ESE Using ENVI Services Engine ENVI Services Engine API ENVI for ArcGIS@ Services Edition Resources Licensing PDF Guides plot error bars idl Platform Support Harris Geospatial/Docs Center/Libraries/AstroLib/OPLOTERROR OPLOTERROR OPLOTERROR Name OPLOTERROR Purpose Over-plot data points with
Asymmetric Error Bars Matlab
accompanying X or Y error bars. Explanation For use instead of PLOTERROR when the plotting system has already been defined. Calling Sequence asymmetric error bars matplotlib oploterror, [ x,] y, [xerr], yerr, [ /NOHAT, HATLENGTH= , ERRTHICK =, ERRSTYLE=, ERRCOLOR =, /LOBAR, /HIBAR, NSKIP = , NSUM = , /ADDCMD, ... OPLOT keywords ] Inputs X = array of abscissas, asymmetric error bars sigmaplot any datatype except string Y = array of Y values, any datatype except string XERR = array of error bar values (along X) YERR = array of error bar values (along Y) Optional Input Keyword Parameters /ADDCMD = Set this keyword if you want to add this command to a cgWindow. /NOHAT = if specified and non-zero, the error bars are drawn without hats. HATLENGTH
Gnuplot Asymmetric Error Bars
= the length of the hat lines used to cap the error bars. Defaults to !D.X_VSIZE / 100). ERRTHICK = the thickness of the error bar lines. Defaults to the THICK plotting keyword. ERRSTYLE = the line style to use when drawing the error bars. Uses the same codes as LINESTYLE. ERRCOLOR = String (e.g. 'red') or scalar integer (0 - !D.N_TABLE) specifying the color to use for the error bars. See CGCOLOR() for a list of possible color names. See http://www.idlcoyote.com/cg_tips/legcolor.php for a warning about the use of indexed color NSKIP = Positive Integer specifying the error bars to be plotted. For example, if NSKIP = 2 then every other error bar is plotted; if NSKIP=3 then every third error bar is plotted. Default is to plot every error bar (NSKIP = 1) NSUM = Number of points to average over before plotting, default = !P.NSUM The errors are also averaged, and then divided by sqrt(NSUM). This approximation is meaningful only when the neighboring error bars have similar sizes. /LOBAR = if specified and non-zero, will draw only the -ERR error bars. /HIBAR = if specified and non-zero, will d
Toolkit APIs ENVI API ESE API Libraries Astronomy Library Beaumont Library Bowman Library Catalyst Library Coyote Library Dáithí idl oploterr Library Galloy Library JBIU Library JHUAPLS1R Library Mankoff Library Markwardt Library idl errplot Motley Library Salvaggio Library ENVI Using ENVI Modules Atmospheric Correction DEM Extraction ENVI Photogrammetry Feature
Ploterror Idl
Extraction (FX) NITF ENVI API ESE Using ENVI Services Engine ENVI Services Engine API ENVI for ArcGIS@ Services Edition Resources Licensing PDF Guides Platform Support Harris http://www.harrisgeospatial.com/docs/oploterror.html Geospatial/Docs Center/IDL Reference/New Graphics/ERRORPLOT ERRORPLOT ERRORPLOT The ERRORPLOTfunction draws a simple line plot, with error bars surrounding each vertex. You can create plots with both symmetric and asymmetric error bars. Example The following lines create the plot shown at the right. y = [20.1, 19.9, 20.0, 20.0, 19.9, 20.0] yerror = [0.329, http://www.harrisgeospatial.com/docs/ERRORPLOT.html 0.186, 0.147, 0.086, 0.234, 0.196] x = INDGEN(6)+1 ; Create the plot p = ERRORPLOT(x, y, yerror, XRANGE=[0,7], $ XTITLE="Day", YTITLE="Distance (miles)", $ TITLE="Average distance bears walk in a day") ; Set some properties p.THICK=2 p.ERRORBAR_THICK=2 p.SYM_COLOR ="cornflower" p.ERRORBAR_COLOR="indian_red" p.ERRORBAR_CAPSIZE=0.5 Additional Examples See Plot examples for additional examples using the ERRORPLOTfunction. Syntax graphic = ERRORPLOT(Y, Yerror [, Format] [, Keywords=value] [, Properties=value]) graphic = ERRORPLOT(X, Y, Xerror, Yerror [, Format] [, Keywords=value] [, Properties=value]) graphic = ERRORPLOT(X, Y, Yerror [, Format] [, Keywords=value] [, Properties=value]) Keywords Keywords are applied only during the initial creation of the graphic. AXIS_STYLE=value /BUFFER, /CURRENT, /DEVICE, DIMENSIONS=[width, height], LAYOUT=array, LOCATION=[x, y], MARGIN=scalar or [left, bottom, right, top], /NO_TOOLBAR, /NODATA, /OVERPLOT, /WIDGETS Properties Properties can be set as keywords to the function during creation, or retrieved or changed using the "." notation after creation. ANTIALIAS, ASPECT_RATIO, AXES, BACKGROUND_COLOR, BACKGROUND_TRANSPARENCY, CLIP, COLOR, CROSSHAIR, ERRORBAR_CAPSIZE, ERRORBAR_COLOR, ERRORBAR_LINESTYLE, ERRORBAR_THICK, FILL_BACKGROUND, FILL_COLOR, FILL_LEVEL, FILL_TRANSPARENC
probably out of luck here, given what goes in the IDL distribution. error bars But others have run up against this problem, too. Check out the routines PlotErrorand OplotErr in the NASA Astronomy Library. These routines have modified the standard IDL routines to allow asymmetric error bars error bars in either direction. Moreover, the routines have additional options, such as NAN value recogntion, plotting only every nth error bar, and the NSum keyword that make them even more useful. Error bars can also be created on plots using the ERR_* keywords available on the cgPlot command. You can find IDL code and see an example of this in the Errorbar_Plot example in the Coyote Plot Gallery. [Return to IDL Programming Tips] Copyright © 1997-2013 David W. Fanning Last Updated 10 December 2013
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