diff options
Diffstat (limited to 'noao/lib/scr/icgfit.html')
| -rw-r--r-- | noao/lib/scr/icgfit.html | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/noao/lib/scr/icgfit.html b/noao/lib/scr/icgfit.html new file mode 100644 index 00000000..1aa77e8c --- /dev/null +++ b/noao/lib/scr/icgfit.html @@ -0,0 +1,83 @@ +<HTML> +<HEAD> +<TITLE> +INTERACTIVE CURVE FITTING CURSOR OPTIONS +</TITLE> +</HEAD> +<BODY> +<H3>1. INTERACTIVE CURVE FITTING CURSOR OPTIONS</H3> + +<PRE> +? Print options +a Add point to constrain fit +c Print the coordinates and fit of point nearest the cursor +d Delete data point nearest the cursor +f Fit the data and redraw or overplot +g Redefine graph keys. Any of the following data types may be along + either axis. + x Independent variable y Dependent variable + f Fitted value r Residual (y - f) + d Ratio (y / f) n Nonlinear part of y +h-l Graph keys. Defaults are h=(x,y), i=(y,x), j=(x,r), k=(x,d), l=(x,n) +o Overplot the next graph +q Exit the interactive curve fitting. Carriage return will also exit. +r Redraw graph +s Set sample range with the cursor +t Initialize the sample range to all points +v Change the weight of the point nearest the cursor +u Undelete the deleted point nearest the cursor +w Set the graph window. For help type 'w' followed by '?'. +x Change the x value of the point nearest the cursor +y Change the y value of the point nearest the cursor +z Delete sample region nearest cursor +I Interrupt task immediately +</PRE> + +<H3>2. INTERACTIVE CURVE FITTING COLON COMMANDS</H3> + +The parameters are listed or set with the following commands which may be +abbreviated. To list the value of a parameter type the command alone. + +<PRE> +:show [file] Show the values of all the parameters +:vshow [file] Show the values of all the parameters verbosely +:xyshow [file] Show the x, y, y fit, and weight data values +:evaluate <value> Print the fit at the specified value +:errors [file] Print the errors of the fit (default STDOUT) +:function [value] Fitting function (chebyshev, legendre, spline3, spline1) +:grow [value] Rejection growing radius +:naverage [value] Sample averaging or medianing window +:order [value] Fitting function order +:low_reject [value] Low rejection threshold +:high_reject [value] High rejection threshold +:niterate [value] Number of rejection iterations +:sample [value] Sample ranges +:markrej [value] Mark rejected points? +</PRE> + +Additional commands are available for setting graph formats and manipulating +the graphics. Use the following commands for help. + +<PRE> +:/help Print help for graph formatting option +:.help Print help for general graphics options +</PRE> + +<H3>3. INTERACTIVE CURVE FITTING GRAPH KEYS</H3> + +The graph keys are h, i, j, k, and l. The graph keys may be redefined to +put any combination of axes types along either graph axis with the 'g' key. +To define a graph key select the desired key to redefine and then specify +the axes types for the horizontal and vertical axes by a pair of comma +separated types from the following: + +<PRE> +d Ratio (y / f) +f Fitted values +r Residuals of fit (y - f) +n Nonlinear part of data (linear component of fit subtracted) +x Indepedent variable +y Dependent variable (data being fit) +</PRE> +</BODY> +</HTML> |