Estimados eRReros, Tengo un df como el adjunto (en txt y como objeto de R) Como veréis hay una columna T/F que se llama germ y cada fila corresponde a datos de un día. Me gustaría que R fuera siguiendo la columna germ y en cada serie de días con TRUE sumara el valor de la columna p. Se trata de saber si en esa serie de días con valor T el total de p es mayor que 1 o no. He hecho algo parecido con rle() que me cuenta la longitud de las series de TRUE, pero este siguiente paso no se como darlo. Si uso apply o subset me toma todas las filas del df con T en la columna germ. Lo que no se el como decirle a R que empiece por el principio y vaya tomando grupo a grupo. Me imagino que podría llegar a construir un bucle que lo hiciera, pero no quiero pasarme tres horas dándole vueltas si hay una función o combinación de funciones que lo hace ¿Alguna sugerencia o me pongo ya con el bucle?
Muchas gracias. Jaume. -- Dr. Jaume Tormo. Area of Ecology Department of Agrarian and Environmental Sciences Technological College. Agri-food and Environment University of Zaragoza, Spain 0034 974292678 https://flipboard.com/@jaumetormo/hallazgos-interesantes-bj8opmboy https://acercad.wordpress.com/
"dia" "p" "lim" "trat" "sp" "germ" "estac" "1" 2019-11-07 0 "brown" "gfgs" "aege" FALSE "fall" "2" 2019-11-08 0 "brown" "gfgs" "aege" FALSE "fall" "3" 2019-11-09 0 "brown" "gfgs" "aege" FALSE "fall" "4" 2019-11-10 0.079 "black" "gfgs" "aege" TRUE "fall" "5" 2019-11-11 0.084 "black" "gfgs" "aege" TRUE "fall" "6" 2019-11-12 0.081 "black" "gfgs" "aege" TRUE "fall" "7" 2019-11-13 0.116 "black" "gfgs" "aege" TRUE "fall" "8" 2019-11-14 0.097 "black" "gfgs" "aege" TRUE "fall" "9" 2019-11-15 0.059 "black" "gfgs" "aege" TRUE "fall" "10" 2019-11-16 0.042 "black" "gfgs" "aege" TRUE "fall" "11" 2019-11-17 0.035 "black" "gfgs" "aege" TRUE "fall" "12" 2019-11-18 0.054 "black" "gfgs" "aege" TRUE "fall" "13" 2019-11-19 0 "brown" "gfgs" "aege" FALSE "fall" "14" 2019-11-20 0 "brown" "gfgs" "aege" FALSE "fall" "15" 2019-11-21 0.094 "black" "gfgs" "aege" TRUE "fall" "16" 2019-11-22 0.114 "black" "gfgs" "aege" TRUE "fall" "17" 2019-11-23 0.092 "black" "gfgs" "aege" TRUE "fall" "18" 2019-11-24 0.058 "black" "gfgs" "aege" TRUE "fall" "19" 2019-11-25 0 "brown" "gfgs" "aege" FALSE "fall" "20" 2019-11-26 0.115 "black" "gfgs" "aege" TRUE "fall" "21" 2019-11-27 0.144 "black" "gfgs" "aege" TRUE "fall" "22" 2019-11-28 0 "brown" "gfgs" "aege" FALSE "fall" "23" 2019-11-29 0 "brown" "gfgs" "aege" FALSE "fall" "24" 2019-11-30 0 "brown" "gfgs" "aege" FALSE "fall" "25" 2019-12-01 0.113 "black" "gfgs" "aege" TRUE "winter" "26" 2019-12-02 0.099 "black" "gfgs" "aege" TRUE "winter" "27" 2019-12-03 0.076 "black" "gfgs" "aege" TRUE "winter" "28" 2019-12-04 0.084 "black" "gfgs" "aege" TRUE "winter" "29" 2019-12-05 0.103 "black" "gfgs" "aege" TRUE "winter" "30" 2019-12-06 0.113 "black" "gfgs" "aege" TRUE "winter" "31" 2019-12-07 0.056 "black" "gfgs" "aege" TRUE "winter" "32" 2019-12-08 0.062 "black" "gfgs" "aege" TRUE "winter" "33" 2019-12-09 0 "brown" "gfgs" "aege" FALSE "winter" "34" 2019-12-10 0 "brown" "gfgs" "aege" FALSE "winter" "35" 2019-12-11 0 "brown" "gfgs" "aege" FALSE "winter" "36" 2019-12-12 0 "brown" "gfgs" "aege" FALSE "winter" "37" 2019-12-13 0 "brown" "gfgs" "aege" FALSE "winter" "38" 2019-12-14 0 "brown" "gfgs" "aege" FALSE "winter" "39" 2019-12-15 0.041 "black" "gfgs" "aege" TRUE "winter" "40" 2019-12-16 0 "brown" "gfgs" "aege" FALSE "winter" "41" 2019-12-17 0.076 "black" "gfgs" "aege" TRUE "winter" "42" 2019-12-18 0.057 "black" "gfgs" "aege" TRUE "winter" "43" 2019-12-19 0.095 "black" "gfgs" "aege" TRUE "winter" "44" 2019-12-20 0.163 "black" "gfgs" "aege" TRUE "winter" "45" 2019-12-21 0.175 "black" "gfgs" "aege" TRUE "winter" "46" 2019-12-22 0.132 "black" "gfgs" "aege" TRUE "winter" "47" 2019-12-23 0 "brown" "gfgs" "aege" FALSE "winter" "48" 2019-12-24 0 "brown" "gfgs" "aege" FALSE "winter" "49" 2019-12-25 0.052 "black" "gfgs" "aege" TRUE "winter" "50" 2019-12-26 0 "brown" "gfgs" "aege" FALSE "winter"
ejemplo.RData
Description: Binary data
_______________________________________________ R-help-es mailing list R-help-es@r-project.org https://stat.ethz.ch/mailman/listinfo/r-help-es
