Skip to content

fix normalize_min_max #353

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
kushalkolar merged 2 commits into from
Nov 2, 2023
Merged

fix normalize_min_max #353

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
5373458
fix normalize_min_max
kushalkolar Nov 1, 2023
1a21b71
document utils.get_cmap()
kushalkolar Nov 1, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 20 additions & 0 deletions fastplotlib/utils/functions.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,23 @@


def get_cmap(name: str, alpha: float = 1.0) -> np.ndarray:
"""
Get a colormap as numpy array

Parameters
----------
name: str
name of colormap
alpha: float
alpha, 0.0 - 1.0

Returns
-------
np.ndarray
[n_colors, 4], i.e. [n_colors, RGBA]

"""

cmap_path = Path(__file__).absolute().parent.joinpath("colormaps", name)
if cmap_path.is_file():
cmap = np.loadtxt(cmap_path)
Expand Down Expand Up @@ -214,6 +231,9 @@ def calculate_gridshape(n_subplots: int) -> Tuple[int, int]:

def normalize_min_max(a):
"""normalize an array between 0 - 1"""
if np.unique(a).size == 1:
return np.zeros(a.size)

return (a - np.min(a)) / (np.max(a - np.min(a)))


Expand Down