Where can I find documentation for data[:,9]

[Cal Who]

data = readdata( 'data/input.dat', delimiter = ',' )

input = data[:, :9]#nine data columns



Where can I find documentation for the

data[:,9]

in the code above.

Been looking and found many examples but would like to know the definition.

I need to skip the first column and then read 9



I would also like to print the data in ihe variable "input"



Thanks

 

[Robert Kern]

data = readdata( 'data/input.dat', delimiter = ',' )

input = data[:, :9]#nine data columns



Where can I find documentation for the

data[:,9]

in the code above.

Been looking and found many examples but would like to know the definition.

When asking questions like this, it helps *a lot* to provide a complete example,
not just a snippet. If I weren't already intimately familiar with the library
you are using, I would have no idea how to help you.

However, I do know that input object is a numpy array, and the syntax you are
asking about is multidimensional slicing.

http://docs.scipy.org/doc/numpy/reference/arrays.indexing.html

I need to skip the first column and then read 9

data[:, 1:10]

I would also like to print the data in ihe variable "input"

print input

--
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco

 

[Cal Who]

data = readdata( 'data/input.dat', delimiter = ',' )

input = data[:, :9]#nine data columns



Where can I find documentation for the

data[:,9]

in the code above.

Been looking and found many examples but would like to know the
definition.

When asking questions like this, it helps *a lot* to provide a complete
example, not just a snippet. If I weren't already intimately familiar with
the library you are using, I would have no idea how to help you.

However, I do know that input object is a numpy array, and the syntax you
are asking about is multidimensional slicing.

http://docs.scipy.org/doc/numpy/reference/arrays.indexing.html

I need to skip the first column and then read 9

data[:, 1:10]

I would also like to print the data in ihe variable "input"

print input

--
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless
enigma
that is made terrible by our own mad attempt to interpret it as though it
had
an underlying truth."
-- Umberto Eco

Thanks, that helped a lot.

I'm having trouble knowing what to search for to find documenatation. For
example, is print a Python command, a numpy command or a java command?

I like to read the documentation even if the command is working for me.


Thanks again

 

[Martin P. Hellwig]

On 03/11/10 22:08, Cal Who wrote:

Thanks, that helped a lot.

I'm having trouble knowing what to search for to find documenatation. For
example, is print a Python command, a numpy command or a java command?

I like to read the documentation even if the command is working for me.


Thanks again

Probably for you the right way would be to familiarize yourself with the
namespace concept of Python, this makes it easier to identify whether
something is built-in, a standard module or an external module.
Which makes it much easier to feed google the right clues.

 

[Cal Who]

On 03/11/10 22:08, Cal Who wrote:

Probably for you the right way would be to familiarize yourself with the
namespace concept of Python, this makes it easier to identify whether
something is built-in, a standard module or an external module.
Which makes it much easier to feed google the right clues.

Thanks a lot, I'll look that up now.