How to read alternate rows from an excel sheet?

2 vues (au cours des 30 derniers jours)
Aravind Rajan AYAGARA
Aravind Rajan AYAGARA le 20 Juin 2016
Commenté : Shameer Parmar le 21 Juin 2016
Hello, I am working with matlab to interpret data from excel sheets. Previously I used 'xlsread' function for reading data from a column for example * _ "t=xlsread(filename,sheet,'A2:A250')"_*.
Now I want to read data from alternate rows of a column regarding which I have no idea. I tried modifying my excel sheet but it did not work. Could anyone help me in figuring a way??

Réponses (2)

Guillaume
Guillaume le 20 Juin 2016
Yes, as per Shameer's answer, xlsread does not support reading non-continuous ranges, so you'll have to read the whole range at once.
It's just a matter of simple indexing to remove alternate rows. Do not use a loop for that:
t = xlsread(filename,sheet,'A2:A250')
toddrows = t(1:2:end, :)
tevenrows = t(2:2:end, :)
  1 commentaire
Aravind Rajan AYAGARA
Aravind Rajan AYAGARA le 20 Juin 2016
Voila! this method Works!!!
Thank you Mr. Guillaume

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Shameer Parmar
Shameer Parmar le 20 Juin 2016
Hello Aravind,
As per my knowledge, in xlsread, there is no such facility to fetch alternate rows of column.
You can do one thing.. after calculating value of t..
do this..
count = 1;
for i = 1:length(t)
if rem(i,2)~=0
new_t{count} = t{i};
count++;
end
end
  2 commentaires
Aravind Rajan AYAGARA
Aravind Rajan AYAGARA le 20 Juin 2016
Thenk you for your reply, the compiler shows an error saying 'Expression or statement is incomplete or incorrect' in 'count++'
Shameer Parmar
Shameer Parmar le 21 Juin 2016
ohh.. I checked and I made the changes as follows...
count = 1;
for i = 1:length(t)
if rem(i,2)~=0
new_t(count) = t(i);
count = count + 1;
end
end

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