How can I write a 2D array into a CSV file
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Behrad Ze
on 17 Feb 2022
Answered: Walter Roberson
on 17 Feb 2022
I have read an array from a csv file and done some calculations on that. After that, I want to save the array excactly like the CSV file I read.I would be thankful if anyone could help me with this .I have also attached a sample file. thank You so much
sample=readmatrix('71.csv');
Blank=readmatrix('Blank.csv');
x=sample(1,2:end);
y=sample(2:end,1);
RamanArea=5275.6715;
data=sample(2:end,2:end);
dataBlank=Blank(2:end,2:end);
[numRows,numCols] = size(data);
data=data-dataBlank;
for k = 1:numRows
for l = 1:numCols
data(k,l)=data (k,l)/RamanArea;
end
end
for i = 1:numRows
for j = 1:numCols
if (data(i,j)<=0)
data(i,j)=NaN;
end
end
end
xCSV=numRows+1;
yCSV=numCols+1;
xsvArray=csvArray(xCSV,yCSV);
csvArray(2:end,1)=x;
csvArray(1,2:end)=y;
csvwrite('file.csv',csvArray);
csvwrite('file.csv',x,1,0);
figure();
surf(x,y,data);
colorbar();
3 Comments
Accepted Answer
Walter Roberson
on 17 Feb 2022
as_cell = [num2cell([nan, x]); num2cell(csvArray)];
as_cell(cellfun(@isnan, as_cell)) = {''};
writecell(as_cell, 'file.csv')
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