It would be easier to have it as a "regular" array (pardon me for not knowing the correct nomenclature, I just started working with matlab). However, C is a cell array and this makes it harder to handle the contents of the file in matlab. I have successfully imported a test file using the following: ftest = fopen('test.csv') Ĭ = textscan(ftest,'%f %s %f %f %f %f %f %f %s %s %f %f','Headerlines',1,'Delimiter',',') Finally, 'Delimiter',',' states that all commas should be interpreted as the delimiter between each column. This question assumes that all you have is numerical values, so a cell array is indeed redundant, and it can be converted into a matrix, which is much easier to manipulate. To do this, call: data textscan (fid,'s s s f f f','Delimiter',',') The asterisk in s means 'ignore this column'. Here you have a cell array that stores both columns of numbers and strings. Each row is delimited by an end-of-line ( EOL) character sequence. 1 A cell array is an array that can store values of different types. When the field width operator is used with single characters ( c ), textscan also reads delimiter, white-space, and end-of-line characters. Each field consists of a group of characters delimited by a field delimiter character. So what I wanted the textscan to output was a 4 row cell array, the first row would have 6 cells representing the coordinates of the 6 regions for that specific row(in this case leaf tips). Each block consists of a number of internally consistent fields. I've tried the following: file = '0.I have a large csv file (should be around 1 million lines) with option data with the following structure (content is altered): secid, date, days, delta, impl_volatility, impl_strike, impl_premium, dispersion, cp_flag, ticker, index_flag, industry_groupġ00000,, 60, -80, 0.270556, 74.2511, 5.2415, 0.021514, C, ASC, 0, 481ġ00000,, 30, -40, 0.251556, 74.2571, 6.2415, 0.025524, P, ASC, 0, 481 The textscan function regards a text file as consisting of blocks. What formatSpec should I use so that I get the coordinates of each region outputed in a cell? I know I have to use textscan to accomplish this but I am unsure of the formatspec options needed to achieve this, since whichever setting I use seem to give me some jumbled form of cell output. These are coordinates to regions of interest for each category in an image.
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