![]() 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. Here you have a cell array that stores both columns of numbers and strings. The file comes out of a relational database (Antelope) and consists of earthquake location, dates, times, phase information, etc. 1 A cell array is an array that can store values of different types. ![]() file fopen ('file.txt') d textscan (file,'s d d d ,'delimiter',',') If i run the code above it gives me a 1 x n array. ![]() Each row is delimited by an end-of-line ( EOL) character sequence. Learn more about text file, block, textscan, text, read, parse, debug, debugging session, regexp, blocks MATLAB I have a text file that is in a rather funky format. I want to read a text file into a cell array so that i have each line of my file as a new row and each attribute in my file as a column on that row. Each field consists of a group of characters delimited by a field delimiter character. Each block consists of a number of internally consistent fields. If trailing delimiters should invoke the missing-contents behaviour (your interpretation) then that would imply that the 123 should be accepted by the first time %f is processed, then the abc should be accepted by the first time %q is processed, then the empty field at the end of the line should be accepted and turned into nan by the second time %f is processed, then the 456 should be accepted and turned into character vector by the second time %q is processed, then the def should trigger a format mismatch the third time %f is processed, stopping the scanning and leaving def, in the buffer. The textscan function regards a text file as consisting of blocks. that is also my first time doing communication with a serial device. i have aseen a very old script, that used strread, but there is an information its not available for so long, so i write my own script now and update everything else accordingly (serial to serialport and so on). For example if the input were 123,abc,456,def, and the format were %f%q then with the current behaviour that would generate. i have a string with several values from an alicat as input and i want to cut into several values using textscan. If trailing delimiters should invoke the missing-contents behaviour (your interpretation) then that would imply that the 123 should be accepted by the first time %f is processed, then the abc should be accepted by the first time %q is processed, then the empty field at the end of the line should be accepted and turned into nan by the second time %f is processed, then the 456 should be accepted and turned into character vector by the second time %q is processed, then the def should trigger a format mismatch the third time %f is processed, stopping the scanning and leaving def, in the buffer.Yes, textscan could have been designed to set an internal flag indicating that a delimiter had been seen before the current position, but I am not sure that would meet with expectations. For example if the input were 123,abc,456,def, and the format were %f%q then with the current behaviour that would generate. The default field delimiter is the white-space character, (i.e., any character that returns true from a call to the isspace function). ![]() Yes, textscan could have been designed to set an internal flag indicating that a delimiter had been seen before the current position, but I am not sure that would meet with expectations.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |