with simpler expressions:
if I have a dataframe
A B C
is it possible de transform it to a matrix where nrow(A) colomns, nrow(B)
row and for each value of C, we put the corresponding value in the matrix.

Regards



Le 18 février 2012 13:57, Adel ESSAFI <adelessafi@gmail.com> a écrit :

> Hello
>
> > orderulcount
>    Group.1 Group.2 Group.3  x    V5
> 7        C       L     0.0 30 C / L
> 19       C       L     0.2 27 C / L
> 31       C       L     0.4 15 C / L
> 43       C       L     0.6  7 C / L
> 54       C       L     0.8  2 C / L
> 10       C       S     0.0 27 C / S
> 22       C       S     0.2 10 C / S
> 34       C       S     0.4  6 C / S
> 46       C       S     0.6  1 C / S
> 1        D       D     0.0 30 D / D
> 13       D       D     0.2 30 D / D
> 25       D       D     0.4 17 D / D
> 37       D       D     0.6  9 D / D
> 49       D       D     0.8  2 D / D
> 3        D       F     0.0 30 D / F
> 15       D       F     0.2 26 D / F
> 27       D       F     0.4 13 D / F
> 39       D       F     0.6  3 D / F
> 51       D       F     0.8  3 D / F
> 5        D       I     0.0 26 D / I
> 17       D       I     0.2  7 D / I
> 29       D       I     0.4  7 D / I
> 41       D       I     0.6  1 D / I
> 53       D       I     0.8  1 D / I
> 8        D       L     0.0 30 D / L
> 20       D       L     0.2 26 D / L
> 32       D       L     0.4 14 D / L
> 44       D       L     0.6  8 D / L
> 55       D       L     0.8  2 D / L
> 11       D       S     0.0 27 D / S
> 23       D       S     0.2  8 D / S
> 35       D       S     0.4  4 D / S
> 47       D       S     0.6  1 D / S
> 2        I       D     0.0 30 I / D
> 14       I       D     0.2 30 I / D
> 26       I       D     0.4 14 I / D
> 38       I       D     0.6  9 I / D
> 50       I       D     0.8  2 I / D
> 4        I       F     0.0 30 I / F
> 16       I       F     0.2 29 I / F
> 28       I       F     0.4 16 I / F
> 40       I       F     0.6  5 I / F
> 52       I       F     0.8  2 I / F
> 6        I       I     0.0 30 I / I
> 18       I       I     0.2 17 I / I
> 30       I       I     0.4  4 I / I
> 42       I       I     0.6  1 I / I
> 9        I       L     0.0 30 I / L
> 21       I       L     0.2 27 I / L
> 33       I       L     0.4 17 I / L
> 45       I       L     0.6  8 I / L
> 56       I       L     0.8  2 I / L
> 12       I       S     0.0 28 I / S
> 24       I       S     0.2 11 I / S
> 36       I       S     0.4  6 I / S
> 48       I       S     0.6  3 I / S
>
> I have a data frame formed by 5 colomns. How to transform this data frame
> to a matrix formed as follow:
> 1. the colomn 5 is the comumn (string)
> 2.  the colomn 5 row
> 3. the data are the colomn x.
>
> I aim to draw barplot later using the matrix.
>
> Thanks for any help
>
>
>
>
>
>
>
>
>
> --
> PhD candidate in Computer Science
> Address
> 3 avenue lamine, cité ezzahra, Sousse 4000
> Tunisia
> tel: +216 97 246 706 (+33640302046 jusqu'au 15/6)
> fax: +216 71 391 166
>



-- 
PhD candidate in Computer Science
Address
3 avenue lamine, cité ezzahra, Sousse 4000
Tunisia
tel: +216 97 246 706 (+33640302046 jusqu'au 15/6)
fax: +216 71 391 166

	[[alternative HTML version deleted]]

