Histogram doesn't work for pandas.Series #1253
Description
Description of the problem
Full code that generated the error
import pygmt
import pandas as pd
import numpy as np
table = pd.read_csv("https://raw.githubusercontent.com/GenericMappingTools/pygmt/master/pygmt/tests/data/points.txt", sep=" ", header=None)
fig = pygmt.Figure()
fig.histogram(table[0], pen="1p", series=[0, 90, 10], frame=True) # Fail
#fig.histogram(np.array(table[0]), pen="1p", series=[0, 90, 10], frame=True) # Pass
fig.show()I have to convert table[0] to a numpy array to make it work.
Full error message
Traceback (most recent call last):
File "test.py", line 8, in <module>
fig.histogram(table[0], pen="1p", series=[0, 90, 10], frame=True)
File "pygmt/pygmt/helpers/decorators.py", line 297, in new_module
return module_func(*args, **kwargs)
File "pygmt/pygmt/helpers/decorators.py", line 438, in new_module
return module_func(*args, **kwargs)
File "pygmt/pygmt/src/histogram.py", line 57, in histogram
with file_context as infile:
File "lib/python3.8/contextlib.py", line 113, in __enter__
return next(self.gen)
File "pygmt/pygmt/clib/session.py", line 1159, in virtualfile_from_vectors
rows = len(arrays[0])
TypeError: len() of unsized object
System information
Please paste the output of python -c "import pygmt; pygmt.show_versions()":
PyGMT information:
version: v0.3.2.dev82+g82ebbbc4.d20210412
System information:
python: 3.8.5 (default, Sep 4 2020, 02:22:02) [Clang 10.0.0 ]
executable: /Users/XXX/.miniconda/bin/python
machine: macOS-10.16-x86_64-i386-64bit
Dependency information:
numpy: 1.20.1
pandas: 1.2.3
xarray: 0.17.0
netCDF4: 1.5.6
packaging: 20.9
ghostscript: 9.53.3
gmt: 6.2.0_522a350_2021.04.29
GMT library information:
binary dir: /Users/XXX/.miniconda/bin
cores: 8
grid layout: rows
library path: /Users/XXX/opt/GMT-master/lib/libgmt.dylib
padding: 2
plugin dir: /Users/XXX/opt/GMT-master/lib/gmt/plugins
share dir: /Users/XXX/opt/GMT-master/share
version: 6.2.0