Fortran read from file how to#

If(iend.lt.0)exit ! same when eof is reached Read(10,20,iostat=iend)int1,int2,float1,float2,float3Дў0 format(2i15,3f15.8) ! if you select the field width inexcess of what you expect in the file you are sure your numbers get read completely.ДЇlag =.true. Integer chrcr ! would not work on real numbers Rewind your (sequential acess)- and start reading the lines and start to process the lines when your first number equals the one you want Well, there is no need to have the data in direct access mode (this would require they were saved in direct access mode, which is not so much a common feature if you have it from the outside).

Fortran read from file how to#

RE: How to read data from specific line in a file My problem now is how do i make Fortran start reading the file from a particular line based on the value returned by the variable 'crhr' So when this variable has a value of 5002 what i need is i should be able to read the rows corresponding to the number 5002 and store it in an array. For example it may be 5002 or 5050 or anything.

There is a variable 'crhr' which returns a value which corresponds to any of the values in column 1. Infact my original file has (5760 x 4633) rows. Or i should say the column 1 number doesnt change for for 100 rows and then it increases.

That means, for each number in column 1 i have 100 values. It has 5 columns with first two being integers and 3-5 are floating values.ДЇile format (similar format with different values)