Matlab - Plotar datas do eixo x

[Luís Marton]

Pessoal,

preciso de ajuda para plotar data no eixo x.

Estou fazendo alguns gráficos no MATLAB para um projeto que desenvolvo, entretanto estou tendo alguns problemas para plotar datas no eixo x, sendo que estas datas se encontram num arquivo externo.

Script:

% Faz a Leitura do arquivo

FileName=([ 'historia2' ]);

disp([ 'lendo o arquivo historia' ]);

open_arq=([ 'load ' FileName '.txt' ]); eval(open_arq);

%--------------------------

% Cria o label data para o eixo x

d = [ 'd = ' FileName '(1:80,1);' ]; eval(d); % Intervalo de Data

t=d

datestr(t,1)

pause

- O programa abre o arquivo historia2.txt, e a variável "d"faz a leitura da primeira coluna do arquivo:

- Este deveria ler: 03.APR.2011.00Z, mas ele lê apenas o primeiro termo antes do ponto - 03. , quando solicito para escrever na tela aparece o seguinte: 03-Jan-0000.

Alguém tem ideia do que pode estar ocorrendo?

Desde já, agradeço pelo auxílio.

Obrigado!

Arquivo: historia2.txt

03.APR.2011.00Z -4.3 -2.1 4.8 -154.5 -1.1 1.2 1.6 133. 10.9

03.APR.2011.03Z -4.7 -3.4 5.8 -144.8 -1.1 1.2 1.6 133. 10.8

03.APR.2011.06Z -4.2 -4.2 5.9 -134.7 -1.1 1.1 1.6 135. 10.4

03.APR.2011.12Z -2.9 -4.9 5.7 -120.7 -1.2 1.0 1.6 139. 9.8

03.APR.2011.12Z -2.9 -4.9 5.7 -120.7 -1.2 1.0 1.6 139. 9.8

03.APR.2011.15Z -2.3 -4.4 4.9 -117.5 -1.1 1.0 1.5 139. 9.7

03.APR.2011.18Z -2.6 -3.6 4.4 -126.1 -1.1 1.0 1.4 138. 9.7

03.APR.2011.21Z -4.4 -2.7 5.2 -148.6 -1.0 0.9 1.4 137. 9.6

04.APR.2011.00Z -5.2 -1.4 5.4 -165.0 -1.0 0.9 1.3 138. 9.4

04.APR.2011.03Z -5.7 -2.3 6.1 -157.5 -1.0 0.9 1.3 139. 9.1

04.APR.2011.06Z -5.2 -2.6 5.8 -153.3 -1.0 0.8 1.3 142. 8.8

04.APR.2011.09Z -5.0 -2.9 5.8 -150.0 -1.0 0.7 1.3 145. 8.5

04.APR.2011.12Z -4.5 -3.5 5.7 -142.2 -1.1 0.7 1.3 148. 8.3

04.APR.2011.15Z -3.1 -3.7 4.8 -130.4 -1.1 0.6 1.2 149. 8.2

04.APR.2011.18Z -3.5 -2.8 4.5 -141.7 -1.0 0.6 1.2 149. 8.2

04.APR.2011.21Z -5.5 -1.2 5.7 -168.3 -1.0 0.6 1.2 149. 8.1

05.APR.2011.00Z -6.8 -0.4 6.8 -176.5 -1.0 0.5 1.2 152. 7.7

05.APR.2011.03Z -6.9 -1.0 6.9 -172.1 -1.1 0.5 1.2 155. 7.4

05.APR.2011.06Z -6.5 -1.4 6.7 -168.2 -1.1 0.4 1.2 158. 7.2

05.APR.2011.09Z -5.8 -1.6 6.0 -164.9 -1.1 0.4 1.2 159. 7.1

05.APR.2011.12Z -5.4 -1.9 5.7 -160.6 -1.1 0.4 1.1 160. 7.1

05.APR.2011.15Z -4.4 -2.2 5.0 -153.4 -1.0 0.4 1.1 160. 7.2

05.APR.2011.18Z -4.4 -1.8 4.8 -158.0 -1.0 0.4 1.1 159. 7.2

05.APR.2011.21Z -5.9 -1.3 6.0 -167.2 -1.0 0.4 1.1 160. 7.2

06.APR.2011.00Z -5.0 -0.5 5.0 -173.9 -1.0 0.3 1.1 162. 6.9

06.APR.2011.03Z -5.4 -1.3 5.6 -166.4 -1.0 0.3 1.1 163. 7.0

06.APR.2011.06Z -4.9 -2.3 5.4 -155.3 -1.0 0.3 1.1 163. 7.0

06.APR.2011.09Z -4.3 -2.2 4.8 -153.3 -1.0 0.3 1.1 162. 7.2

06.APR.2011.12Z -4.0 -2.1 4.5 -152.4 -1.0 0.4 1.1 160. 7.5

06.APR.2011.15Z -3.3 -2.0 3.9 -148.9 -1.0 0.4 1.0 157. 7.8

06.APR.2011.18Z -3.0 -0.9 3.2 -163.5 -0.9 0.5 1.0 154. 8.1

06.APR.2011.21Z -4.0 0.8 4.1 169.0 -0.9 0.5 1.0 151. 8.3

07.APR.2011.00Z -4.9 2.0 5.3 157.6 -0.9 0.5 1.0 149. 8.4

07.APR.2011.03Z -4.5 0.5 4.5 174.2 -0.9 0.6 1.0 148. 8.4

07.APR.2011.06Z -3.8 -0.5 3.8 -173.0 -0.9 0.6 1.0 148. 8.4

07.APR.2011.09Z -3.5 -0.7 3.6 -169.0 -0.9 0.5 1.1 150. 8.3

07.APR.2011.12Z -3.5 -1.0 3.7 -164.6 -1.0 0.5 1.1 152. 8.2

07.APR.2011.15Z -2.7 0.3 2.7 173.9 -1.0 0.5 1.1 154. 8.0

07.APR.2011.18Z -2.9 0.6 3.0 168.7 -1.1 0.5 1.2 156. 7.8

07.APR.2011.21Z -3.5 0.9 3.6 166.2 -1.1 0.5 1.2 157. 7.7

08.APR.2011.00Z -7.0 1.9 7.3 165.1 -1.1 0.5 1.2 158. 7.6

08.APR.2011.03Z -7.7 2.3 8.0 163.5 -1.2 0.5 1.3 159. 7.1

08.APR.2011.06Z -7.6 1.7 7.8 167.6 -1.3 0.5 1.3 159. 6.7

08.APR.2011.09Z -6.6 1.7 6.8 166.0 -1.3 0.5 1.4 159. 6.7

08.APR.2011.12Z -6.2 1.8 6.5 163.8 -1.3 0.5 1.4 157. 7.0

08.APR.2011.15Z -5.5 2.1 5.9 159.5 -1.3 0.6 1.4 155. 7.3

08.APR.2011.18Z -6.3 2.3 6.7 160.3 -1.3 0.7 1.5 153. 7.5

08.APR.2011.21Z -7.0 0.4 7.0 176.6 -1.4 0.7 1.6 153. 7.6

09.APR.2011.00Z -6.6 0.8 6.7 172.9 -1.5 0.7 1.7 154. 7.7

09.APR.2011.03Z -7.5 1.3 7.6 170.3 -1.6 0.7 1.7 155. 7.6

09.APR.2011.06Z -7.4 1.5 7.6 168.6 -1.6 0.7 1.8 155. 7.6

09.APR.2011.09Z -7.0 1.3 7.1 169.1 -1.6 0.7 1.8 155. 7.5

09.APR.2011.12Z -6.6 1.3 6.8 169.0 -1.6 0.7 1.8 155. 7.5

09.APR.2011.15Z -4.8 1.1 4.9 166.9 -1.6 0.7 1.7 155. 7.5

09.APR.2011.18Z -4.0 3.3 5.2 140.6 -1.5 0.7 1.7 154. 7.6

09.APR.2011.21Z -5.7 4.7 7.4 140.9 -1.5 0.8 1.7 152. 7.5

10.APR.2011.00Z -6.6 4.4 7.9 146.4 -1.5 0.8 1.7 151. 7.3

10.APR.2011.03Z -7.1 3.6 8.0 152.9 -1.5 0.8 1.7 152. 7.1

10.APR.2011.06Z -8.0 2.5 8.4 162.5 -1.5 0.8 1.7 154. 6.9

10.APR.2011.09Z -8.3 2.2 8.6 165.1 -1.6 0.7 1.8 156. 6.7

10.APR.2011.12Z -8.2 1.9 8.4 167.4 -1.7 0.7 1.8 158. 6.6

10.APR.2011.15Z -6.7 2.3 7.1 160.9 -1.7 0.7 1.8 158. 6.6

10.APR.2011.18Z -6.6 2.7 7.1 158.0 -1.6 0.7 1.8 158. 6.7

10.APR.2011.21Z -6.2 3.4 7.1 151.5 -1.6 0.7 1.7 158. 6.7

11.APR.2011.00Z -6.8 2.9 7.3 157.1 -1.6 0.6 1.7 157. 6.7

11.APR.2011.03Z -6.0 2.1 6.4 161.2 -1.5 0.6 1.7 158. 6.8

11.APR.2011.06Z -6.3 2.7 6.9 156.6 -1.5 0.6 1.6 158. 6.7

11.APR.2011.09Z -7.1 2.6 7.6 159.9 -1.5 0.6 1.7 158. 6.6

11.APR.2011.12Z -7.5 2.5 7.9 161.3 -1.6 0.6 1.7 158. 6.5

11.APR.2011.15Z -6.5 1.9 6.7 163.4 -1.6 0.7 1.7 158. 6.6

11.APR.2011.18Z -5.6 2.6 6.2 155.4 -1.6 0.7 1.7 157. 6.8

11.APR.2011.21Z -5.7 3.3 6.6 149.6 -1.5 0.7 1.7 155. 7.0

12.APR.2011.00Z -6.9 2.8 7.4 158.0 -1.5 0.8 1.6 153. 7.1

12.APR.2011.03Z -8.4 2.5 8.8 163.4 -1.6 0.8 1.7 153. 7.1

12.APR.2011.06Z -9.3 2.5 9.6 165.3 -1.8 0.9 2.0 154. 7.1

12.APR.2011.09Z -8.4 1.5 8.5 170.1 -1.9 0.9 2.1 153. 7.2

12.APR.2011.12Z -7.1 0.8 7.2 173.6 -1.9 1.0 2.2 152. 7.5

12.APR.2011.15Z -6.1 1.4 6.2 167.0 -1.9 1.1 2.2 149. 7.8

12.APR.2011.18Z -5.4 2.2 5.8 157.9 -1.8 1.2 2.1 146. 8.1

12.APR.2011.21Z -5.1 1.1 5.3 167.7 -1.7 1.3 2.1 143. 8.3

13.APR.2011.00Z -6.8 -1.2 6.9 -169.7 -1.6 1.3 2.1 142. 8.5