Dear All,
I have a vector x (as a factor, see below) for which I'd like to know
frequencies for each
level of the factor itself. I generally use "tapply function" for that but it
gave to me
an unespected result as you can see and according my knowledge of R language
and if my memory did not fail.
x <-
c(16056,16056,16056,16056,16056,16056,16056,16057,16057,16057,16058,16060
,16060,16060,16061,16061,16062,16062,16062,16062,16062,16063,16064,16065
,16073,16076,16076,16076,16076,16077,16078,16079,16080,16083,16083,16084
,16086,16086,16087,16087,16088,16088,16088,16088,16088,16088,16088,16088
,16089,16089,16089,16089,16090,16090,16090,16090,16092,16092,16092,16092
,16092,16092,16093,16093,16093,16093,16093,16094,16094,16094,16094,16094
,16094,16094,16094,16095,16095,16095,16095,16095,16095,16095,16095,16095
,16095,16095,16095,16095,16095,16095,16096,16096,16096,16096,16096,16097
,16097,16097,16097,16098,16098,16098,16098,16098,16099,16099,16099,16100
,16100,16101,16101,16103,16106,16109,16110,16112,16114,16116,16117,16117
,16119,16119,16120,16121,16121,16121,16122,16122,16122,16122,16122,16123
,16123,16123,16123,16123,16123,16124,16124,16124,16125,16125,16125,16126
,16126,16126,16127,16127,16128,16128,16129,16129,16129,16129,16130,16131
,16131,16131,16131,16131,16131,16132,16132,16133,16133,16133,16133,16134
,16134,16134,16134,16134,16135,16137,16137,16137,16137,16137,16137,16137
,16138,16138,16138,16138,16138,16138,16138,16138,16138,16139,16139,16139
,16139,16139,16140,16140,16140,16140,16140,16142,16142,16143,16143,16143
,16143,16144,16144,16144,16144,16144,16144,16145,16145,16145,16146,16146
,16146,16146,16146,16147,16147,16147,16150,16151,16151,16153,16154,16155
,16155,16155,16155,16157,16158)
x <- factor(x)
tapply(x,x,fun=length)
[1] 1 1 1 1 1 1 1 2 2 2 3 4 4 4 5 5 6 6 6 6 6 7 8 9 10
[26] 11 11 11 11 12 13 14 15 16 16 17 18 18 19 19 20 20 20 20 20 20 20 20 21 21
[51] 21 21 22 22 22 22 23 23 23 23 23 23 24 24 24 24 24 25 25 25 25 25 25 25 25
[76] 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 27 27 27 27 27 28 28 28 28 29
[101] 29 29 29 29 30 30 30 31 31 32 32 33 34 35 36 37 38 39 40 40 41 41 42 43 43
[126] 43 44 44 44 44 44 45 45 45 45 45 45 46 46 46 47 47 47 48 48 48 49 49 50 50
[151] 51 51 51 51 52 53 53 53 53 53 53 54 54 55 55 55 55 56 56 56 56 56 57 58 58
[176] 58 58 58 58 58 59 59 59 59 59 59 59 59 59 60 60 60 60 60 61 61 61 61 61 62
[201] 62 63 63 63 63 64 64 64 64 64 64 65 65 65 66 66 66 66 66 67 67 67 68 69 69
[226] 70 71 72 72 72 72 73 74
table(x)
x
16056 16057 16058 16060 16061 16062 16063 16064 16065 16073 16076 16077 16078
7 3 1 3 2 5 1 1 1 1 4 1 1
16079 16080 16083 16084 16086 16087 16088 16089 16090 16092 16093 16094 16095
1 1 2 1 2 2 8 4 4 6 5 8 15
16096 16097 16098 16099 16100 16101 16103 16106 16109 16110 16112 16114 16116
5 4 5 3 2 2 1 1 1 1 1 1 1
16117 16119 16120 16121 16122 16123 16124 16125 16126 16127 16128 16129 16130
2 2 1 3 5 6 3 3 3 2 2 4 1
16131 16132 16133 16134 16135 16137 16138 16139 16140 16142 16143 16144 16145
6 2 4 5 1 7 9 5 5 2 4 6 3
16146 16147 16150 16151 16153 16154 16155 16157 16158
5 3 1 2 1 1 4 1 1
>
# By looking tapply function help why the table's output is different from
tapply's output?
# Anyone could help to me, please?
Massimiliano
--
Massimiliano Tripoli
Collaboratore T.E.R. scado il 31/12/2014
ISTAT - DCCN - Direzione Centrale della Contabilità Nazionale
U.O. Contabilità dei flussi di materia del sistema economico - CSA/C
Via Depretis, 74/B 00184 Roma
Tel. 06.4673.3132
E-mail: mtrip...@istat.it
Precedentemente:
Collaboratore T.E.R.
Dipartimento DICS Dipartimento per i conti nazionali e le statistiche
economiche
Direzione DCCN Direzione Centrale della contabilità nazionale
Servizio FIP Servizio Statistiche della Finanza Pubblica
Ufficio FIP/E U.O. Conti trimestrali delle amministrazioni pubbliche e
conti della sanità
Via Depretis, 74/B 00184 Roma
Tel. 06.4673.3132
E-mail: mtrip...@istat.it
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