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fopen function - file functionthe fopen opens the file for reading the fscanf then reads each line one double and one character and put each pair in
fscanf function - file functionthe fscanf reads matrix variable mat columnwise from the file specified by fid the format involves conversion
generic code for reading from filesthe generic code to complete this is as shown below fid fopenfilenameif fid -1 dispfile open not
operation on filewe concentrate first on the fgetl function that reads strings from the file one line at a time the fgetl functions afford more
reading from filesthere are many lower level functions which read from files the function fscanf reads the formatted data into a matrix by using
opening and closing a filethe files are opened with the fopen function by the default fopen function opens a file for reading if the other mode is
steps for input output functions - lower level filethe steps involved are as shown below open the file read the file write to the file or
lower level file io functionswhenever reading from data file as long as the data in the file is regular the load function works-in another words the
advanced file input and outputin that section we saw how to read the values entered by user using the input as well as the output functions disp and
initializing the data structure - functionfunction is shown as gtgt printcylvolscylscylinder x has a volume of 1696cylinder a has a volume of
illustration of initializing the data structureillustration of initializing the data structure by preallocating is here as showngtgt cyls3
technique to create nested structuresthis technique is the most proficient though the other technique is to build the nested structure one field at a
variable packagesvariable packages are now the vector of structures hence each and every element in the vector is a structure to show one element in
technique is to create one element - vectortechnique is to create one element with the values from one structure and use repmat to replicate it to
illustration of vectors of structuresin this illustration the packages are vector which has three elements it is shown as a column vector each and
function fieldnames - structure functionsthe function fieldnames will return the names of the fields which are contained in the structure
related structure functionsthere are many functions which can be used with structures in a matlab the function isstruct will return 1 for logical
function rmfield - structurethe function rmfield eliminates a field from the structure it returns a new structure with field eliminated but does not
print from the structureto print from the structure a disp function will show either the whole structure or a fieldgtgt disppackageitemno 123cost
technique to creating this structurean alternative technique of creating this structure that is not as efficient includes using the dot operator to
creating the structure variablescreating a structure variable can be accomplished by simply storing the values in fields by using assignment
structuresthe structures are data structures which group together values which are logically related in what are known as the fields of structure the
function iscellstr - string functionthe function iscellstr will return the logical true when a cell array is a cell array of all the strings or
storing strings in cell arraysthe one good application of a cell array is to store strings of various lengths as cell arrays can store various types
function cellplot - cell arraythe function cellplot place a graphical display of the cell array in a figure window though it is a high-level view and