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10-Example-2-TallyLake.md

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install.packages("yaImpute")
library(yaImpute)
Installing package into '/home/nbcommon/R'
(as 'lib' is unspecified)
data(TallyLake)

Ground based measurements of trees (Y-variables):

  • TopHt Height of tallest trees (ft)
  • LnVolL Log of the volume (f t3/acre) of western larch
  • LnVolDF Log of the volume (f t3/acre) of Douglas-fir
  • LnVolLP Log of the volume (f t3/acre) of lodgepole pine
  • LnVolES Log of the volume (f t3/acre) of Engelmann spruce
  • LnVolAF Log of the volume (f t3/acre) of alpine fir
  • LnVolPP Log of the volume (f t3/acre) of ponderosa pine
  • CCover Canopy cover (percent)

Geographic Location, Slope, and Aspect (X-variables):

  • utmx UTM easting at plot center
  • utmy UTM northing at plot center
  • elevm Mean elevation (ft) above sea level over plot
  • eevsqrd (elevm − 1600)2
  • slopem Mean slope (percent) over plot
  • slpcosaspmMean of slope (proportion) times the cosine of aspect (see Stage (1976) for description of this transformation)
  • slpsinaspmMean of slope (proportion) times the sine of aspect

Additional X-variables:

  • ctim Mean of slope curviture over pixels in stand
  • tmb1m Mean of LandSat band 1 over pixels in stand
  • tmb2m Mean of LandSat band 2 over pixels in stand
  • tmb3m Mean of LandSat band 3 over pixels in stand
  • tmb4m Mean of LandSat band 4 over pixels in stand
  • tmb5m Mean of LandSat band 5 over pixels in stand
  • tmb6m Mean of LandSat band 6 over pixels in stand
  • durm Mean of light duration over pixels in stand
  • insom Mean of solar insolation over pixels in stand
  • msavim Mean of AVI for pixels in stand
  • ndvim Mean of NDVI for pixels in stand
  • crvm Mean of slope curviture for pixels in stand
  • tancrvm Mean of tangent curvature for pixels in stand
  • tancrvsd Standard deviation of tangent curvature for pixels in stand
head(TallyLake)
TopHtLnVolLLnVolDFLnVolLPLnVolESLnVolAFLnVolPPCCoverctimelevm...tmb6mdurminsomutmxutmymsavimndvimcrvmtancrvmtancrvsd
10081001000138 2.9892113.2300146.5507661.3217560.0000000 56 2.337 1055.099... 26.995 3834.9711091455 237324.25372317 54.091 41.005 32.688 47.893 12.184
10081001001028 3.4388144.2079715.4985613.9479693.8819760 72 1.712 961.795... 32.988 3979.4331135193 238273.85375102 56.251 43.006 36.737 60.215 14.304
10081001001387 7.1892966.8506136.1315316.6313964.9472690 58 0.695 970.778... 23.938 3991.5621156310 238555.95375048 53.604 39.104 31.271 45.604 12.649
10081001001771 6.2420484.3782708.0308623.9764990.0000000 58 1.376 993.172... 32.572 4039.0541152221 238524.25374100 56.069 42.596 36.360 57.576 11.614
10081001001836 4.2450614.2554717.8350730.0000000.0000000 94 1.421 1138.569... 27.078 4070.3301194140 238541.05371568 53.835 41.379 33.330 50.767 6.374
10081001001925 0.0000000.0000006.1007450.0000000.0000000 69 1.544 984.898... 30.292 4077.8331167056 238709.85374420 55.000 41.792 35.375 54.542 5.888
dim(TallyLake)
  1. 847
  2. 29