Translating GRIND commands into grind.R
| GRIND | grind.R |
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| 2d | plane() |
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| 3d | cube(); (after sourcing the extension cube.R) |
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| axis | plane(x=, xmin=, xmax=, log="xy") |
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| bifurcate | see the examples logisticMap.R and chaos.R |
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| bye | obsolete |
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| calculator | obsolete (use R) |
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| continue | continue() |
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| cursor | not implemented |
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| display | obsolete |
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| eigen | newton() |
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| erase | obsolete |
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| export | use RStudio's graphics window |
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| finish | run(tmax=, tstep=) |
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| format | obsolete |
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| grid | plane(portrait=TRUE) |
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| help | not implemented |
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| integrator | run(method=) (see ?ode) |
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| keepvar | f <- run() |
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| load | use R's read.table() |
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| macro | make your own R-function |
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| mode | for trajectories use run(traject=TRUE) |
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| newton | newton() |
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| noise | use run(after=) |
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| nullcline | plane(show=) |
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| option | several options have replacements: |
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| option adjust | obsolete, but see the chaos.R example |
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| option backwards | see the separatrix.R example |
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| option initial | the pch option in run() |
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| option map | use run(method="euler"); see the logisticMap.R example |
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| option mark | newton(plot=TRUE) |
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| option points | run(draw=points) |
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| option positive | run(after="state<-ifelse(state<0,0,state)") |
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| option truncate | play with: run(after="if(min(state)<0)break") |
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| output | run(show=) |
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| parameters | p |
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| perturb | see the separatrix.R example |
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| plot | use R's plot() function |
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| poincare | not implemented (see chaos.R for an alternative) |
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| rgb | redefine colors[] |
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| readfile | obsolete |
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| run | run() |
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| shade | not implemented |
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| takens | see the examples logisticMap.R and chaos.R |
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| timeplot | timePlot() |
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| triangle | not implemented |
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| value | not implemented |
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| vector | plane(vector=TRUE) |
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| where | not implemented; s provides the initial state |
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