read_horiba function may return bad raman shifts (as string)

[charlesll]

We need to change in the function:

lambdas=df.columns.values[2:]

to

lambdas=df.columns.values[2:].values

For now, a quick fix is to add the line

my_map.w = my_map.w.astype(float)

after generating your map object.

[KacperGrodecki]

You mean you wont to change lambdas from string to float right? I think it needs casting on float in this line:
lambdas=df.columns.values[2:]
As I remember pandas is on numpy and thus while generating .values we generate numpy- maybe of strings. Isn't it easier to perform:
lambdas=float(df.columns.values[2:])
However I'm not sure it it will generate array or not.

[charlesll]

I will have a look, but maybe the safest option is

lambdas = df.columns.values[2:].values.astype(float)

[charlesll]

Corrected in v0.4.8, closing.