Input and output¶
NumPy binary files (NPY, NPZ)¶
load (file[, mmap_mode, allow_pickle, …]) |
Load arrays or pickled objects from .npy , .npz or pickled files. |
save (file, arr[, allow_pickle, fix_imports]) |
Save an array to a binary file in NumPy .npy format. |
savez (file, *args, **kwds) |
Save several arrays into a single file in uncompressed .npz format. |
savez_compressed (file, *args, **kwds) |
Save several arrays into a single file in compressed .npz format. |
The format of these binary file types is documented in http://docs.scipy.org/doc/numpy/neps/npy-format.html
Text files¶
loadtxt (fname[, dtype, comments, delimiter, …]) |
Load data from a text file. |
savetxt (fname, X[, fmt, delimiter, newline, …]) |
Save an array to a text file. |
genfromtxt (fname[, dtype, comments, …]) |
Load data from a text file, with missing values handled as specified. |
fromregex (file, regexp, dtype[, encoding]) |
Construct an array from a text file, using regular expression parsing. |
fromstring (string[, dtype, count, sep]) |
A new 1-D array initialized from text data in a string. |
ndarray.tofile (fid[, sep, format]) |
Write array to a file as text or binary (default). |
ndarray.tolist () |
Return the array as a (possibly nested) list. |
Raw binary files¶
fromfile (file[, dtype, count, sep]) |
Construct an array from data in a text or binary file. |
ndarray.tofile (fid[, sep, format]) |
Write array to a file as text or binary (default). |
String formatting¶
array2string (a[, max_line_width, precision, …]) |
Return a string representation of an array. |
array_repr (arr[, max_line_width, precision, …]) |
Return the string representation of an array. |
array_str (a[, max_line_width, precision, …]) |
Return a string representation of the data in an array. |
format_float_positional (x[, precision, …]) |
Format a floating-point scalar as a decimal string in positional notation. |
format_float_scientific (x[, precision, …]) |
Format a floating-point scalar as a decimal string in scientific notation. |
Text formatting options¶
set_printoptions ([precision, threshold, …]) |
Set printing options. |
get_printoptions () |
Return the current print options. |
set_string_function (f[, repr]) |
Set a Python function to be used when pretty printing arrays. |
Base-n representations¶
binary_repr (num[, width]) |
Return the binary representation of the input number as a string. |
base_repr (number[, base, padding]) |
Return a string representation of a number in the given base system. |
Data sources¶
DataSource ([destpath]) |
A generic data source file (file, http, ftp, …). |