Ik heb vorige week wat code geschreven die perfect werkte.
Ik probeer het vandaag weer te gebruiken. Het deel in de problemen neemt een subset van een dataframe en past diffen diffinvuit kolom 2 toe op de lengte van het dataframe/matrix.
Dit is mijn dataframe:
dput(d)
structure(list(Tiempo = c(1158, 1158.2, 1158.4, 1158.6, 1158.8,
1159, 1159.2, 1159.4, 1159.6, 1159.8, 1160), UT1 = c(10500, 10500,
10499, 10499, 10499, 10499, 10498, 10498, 10498, 10498, 10497
), UT2 = c(8238, 8238, 8238, 8238, 8238, 8238, 8238, 8238, 8238,
8238, 8238), UT3 = c(16991, 16991, 16991, 16991, 16991, 16991,
16990, 16990, 16990, 16989, 16989), UT4 = c(17903, 17904, 17905,
17906, 17906, 17907, 17908, 17910, 17912, 17913, 17914), UT5 = c(16044,
16044, 16044, 16044, 16044, 16044, 16044, 16044, 16044, 16044,
16044), UT6 = c(16261, 16261, 16261, 16261, 16261, 16261, 16261,
16261, 16261, 16261, 16261), UT7 = c(17094, 17094, 17094, 17094,
17094, 17094, 17094, 17094, 17094, 17094, 17094), UT8 = c(19036,
19037, 19036, 19037, 19037, 19037, 19038, 19038, 19039, 19040,
19041), UT9 = c(15192, 15192, 15192, 15191, 15191, 15191, 15190,
15190, 15189, 15189, 15188), UT10 = c(7113, 7113, 7113, 7113,
7113, 7113, 7113, 7113, 7113, 7113, 7113), UT11 = c(3701, 3701,
3701, 3700, 3700, 3698, 3696, 3695, 3692, 3690, 3689), UT12 = c(11666,
11666, 11666, 11666, 11666, 11666, 11666, 11667, 11669, 11670,
11671), TR1 = c(15805, 15805, 15805, 15805, 15805, 15805, 15805,
15805, 15805, 15805, 15805), TR2 = c(13718, 13718, 13718, 13718,
13718, 13718, 13718, 13718, 13718, 13718, 13718), TR3 = c(19047,
19048, 19050, 19050, 19049, 19050, 19055, 19070, 19071, 19079,
19087), TR4 = c(15847, 15847, 15847, 15849, 15849, 15849, 15849,
15849, 15849, 15848, 15849), TR5 = c(21087, 21087, 21087, 21087,
21087, 21087, 21087, 21087, 21087, 21087, 21086), TR6 = c(11434,
11434, 11434, 11434, 11434, 11434, 11433, 11433, 11433, 11425,
11403), TR7 = c(15769, 15769, 15769, 15769, 15769, 15769, 15769,
15769, 15769, 15769, 15769), TR8 = c(16915, 16915, 16915, 16915,
16915, 16915, 16915, 16915, 16915, 16915, 16915), TR9 = c(15800,
15800, 15800, 15796, 15773, 15755, 15745, 15744, 15735, 15706,
15697), TR10 = c(14121, 14121, 14121, 14121, 14121, 14121, 14121,
14121, 14120, 14121, 14120), TR11 = c(18247, 18247, 18247, 18247,
18247, 18247, 18247, 18247, 18247, 18247, 18247), TR12 = c(10877,
10877, 10877, 10877, 10878, 10878, 10878, 10878, 10878, 10878,
10878)), .Names = c("Tiempo", "UT1", "UT2", "UT3", "UT4", "UT5",
"UT6", "UT7", "UT8", "UT9", "UT10", "UT11", "UT12", "TR1", "TR2",
"TR3", "TR4", "TR5", "TR6", "TR7", "TR8", "TR9", "TR10", "TR11",
"TR12"), row.names = 5791:5801, class = "data.frame")
De code die ik probeer uit te voeren is
dd<-data.frame(cbind(d$Tiempo,(diffinv(abs(diff(as.matrix(c[,2:length(d)])))))))
En ik krijg deze foutmelding:
Error in c[, 2:length(d)] : object of type 'builtin' is not subsettable
Bovendien, wanneer ik gebruik:
q<-c(1:25)
length(q)
[1] 25
q[4:length(q)]
[1] 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Werkt zoals het hoort.
Ik heb geen idee wat er gebeurt. Ik zou wat hulp op prijs stellen.
Bedankt
Antwoord 1, autoriteit 100%
Ik denk dat je dit van plan was:
d[,2:length(d)]