Get several specific position between two states

Source: R/tween_at.R

This tween is a variation of tween_at(). Instead of having at refer to the tweening position of each row, each at will interpolate the full data at that position.

tween_at_t(from, to, at, ease)

Arguments

from, to

A data.frame or vector of the same type. If either is of length/nrow 1 it will get repeated to match the length of the other

at

A numeric vector with values between 0 and 1.

ease

A character vector giving valid easing functions. Recycled to match the ncol of from

Value

If from/to is a data.frame then a data.frame with the same columns. If from/to is a vector then a vector.

Examples

tween_at_t(mtcars[1:6, ], mtcars[6:1, ], runif(3), 'cubic-in-out')
#> Warning: corrupt data frame: columns will be truncated or padded with NAs
#>         mpg      cyl     disp        hp     drat       wt     qsec         vs
#> 1  18.69036 6.000000 211.7678 106.01786 2.992072 3.288999 19.45457 0.79642793
#> 2  19.16822 7.592856 319.2856 161.76782 3.302679 3.324982 17.02000 0.00000000
#> 3  21.68500 5.592856 227.4642 106.53927 3.236750 3.032803 19.27104 1.00000000
#> 4  22.51500 4.407144 138.5358  96.46073 3.693250 2.502197 18.77896 1.00000000
#> 5  20.53178 6.407144 200.7144 123.23218 3.747321 2.990018 17.02000 0.00000000
#> 6  20.40964 6.000000 173.2322 108.98214 3.667928 2.791001 17.22543 0.20357207
#> 7  18.37723 6.000000 218.7863 105.47798 2.868979 3.379699 19.86056 0.90440402
#> 8  18.91987 7.808808 340.8808 168.78626 3.221697 3.385988 17.02000 0.00000000
#> 9  21.53383 5.808808 243.6606 108.37487 3.153609 3.129442 19.36066 1.00000000
#> 10 22.66617 4.191192 122.3394  94.62513 3.776391 2.405558 18.68934 1.00000000
#> 11 20.78013 6.191192 179.1192 116.21374 3.828303 2.929012 17.02000 0.00000000
#> 12 20.72277 6.000000 166.2137 109.52202 3.791021 2.700301 16.81944 0.09559598
#> 13 18.77713 6.000000 209.8228 106.16747 3.026184 3.263864 19.34206 0.76650524
#> 14 19.23704 7.533010 313.3010 159.82284 3.325121 3.308075 17.02000 0.00000000
#> 15 21.72689 5.533010 222.9758 106.03059 3.259791 3.006022 19.24620 1.00000000
#> 16 22.47311 4.466990 143.0242  96.96941 3.670209 2.528978 18.80380 1.00000000
#> 17 20.46296 6.466990 206.6990 125.17716 3.724879 3.006925 17.02000 0.00000000
#> 18 20.32287 6.000000 175.1772 108.83253 3.633816 2.816136 17.33794 0.23349476
#>            am     gear     carb <NA>
#> 1  0.20357207 3.203572 1.610716    1
#> 2  0.20357207 3.203572 2.407144    1
#> 3  0.20357207 3.203572 1.000000    1
#> 4  0.79642793 3.796428 1.000000    1
#> 5  0.79642793 3.796428 3.592856    1
#> 6  0.79642793 3.796428 3.389284    1
#> 7  0.09559598 3.095596 1.286788    1
#> 8  0.09559598 3.095596 2.191192    1
#> 9  0.09559598 3.095596 1.000000    1
#> 10 0.90440402 3.904404 1.000000    1
#> 11 0.90440402 3.904404 3.808808    1
#> 12 0.90440402 3.904404 3.713212    1
#> 13 0.23349476 3.233495 1.700484    1
#> 14 0.23349476 3.233495 2.466990    1
#> 15 0.23349476 3.233495 1.000000    1
#> 16 0.76650524 3.766505 1.000000    1
#> 17 0.76650524 3.766505 3.533010    1
#> 18 0.76650524 3.766505 3.299516    1