Thanks a lot, I am done with that part. But now I am facing another
problem. I am using the code given below where A is a matrix and row is
a sequence. But it gives following error:
-------- error------
A[a,:]=row
ValueError: setting an array element with a sequence.
--------------code----------------
#!/usr/bin/python
import numpy
file1 = open('matrix.txt', 'r')
count = 0
a=0
b=0
c=0
d=0
e=0
A = numpy.zeros([4,4])
while 1:
lineStr = file1.readline()
if not(lineStr):
break
count = count + 1
row=lineStr.split()
if count<=4:
A[a,:]=row
a=a+1
elif count<=8:
B[b,:]=row
b=b+1
elif count<=12:
C[c,:]=row
c=c+1
elif count<=16:
D[d,:]=row
d=d+1
elif count<=20:
E[e,:]=row
e=e+1
file1.close()
---------end of code-------------
is there any way to change a sequence to array?
thank you
Amit
Gabriel Genellina wrote:
> > > I have to write a code in python to read a matrix from a text file and
> > > for that i am using following code. But it gives an error saying
> > > "NameError: name 'split' is not defined". Can anyone help me with this.
>
> A few hints:
> - don't use "file" as a name - it shadows the builtin "file" type
> - matrix.close() won't work, perhaps you meant file.close()?
>
> > > -----------------------------------------------------
> > > Also, i want to initialize the matrix A by zeros, but using A=zeros([4,
> > > 4]) was giving a similar error "NameError: name 'zeros' is not
> > > defined".
>
> Oh, so *that's* why you build it using standard_normal and then
> overwrite the contents!
>
>
> --
> Gabriel Genellina
> Softlab SRL
>
> __________________________________________________
> Correo Yahoo!
> Espacio para todos tus mensajes, antivirus y antispam ¡gratis!
> ¡Abrí tu cuenta ya! - http://correo.yahoo.com.ar
--
http://mail.python.org/mailman/listinfo/python-list
