Hello,

I am following Muon’s tutorial “Processing and integrating 5k PBMCs CITE-seq data” and I get an error on the mofa.plot_factors function. This happens both with my data and with the ones provided by the tutorial itself. It’s a value error about a length mismatch, basically the function always expects double of the elements in the list passed to the “color” argument.

Below you can find my code and the error that I get.

Thanks for reading and for your help!

**Code:**

mofa.plot_factors(model, x=1, y=2, color=[“CD45RA_TotalSeqB”, “CD45RO_TotalSeqB”, “CD19_TotalSeqB”], palette=“RdPu”)

**Error:**

ValueError Traceback (most recent call last)

Cell In[127], line 1

----> 1 mofa.plot_factors(model, x=1, y=2, color=[“CD45RA_TotalSeqB”, “CD45RO_TotalSeqB”, “CD19_TotalSeqB”], palette=“RdPu”)

File ~/opt/anaconda3/envs/myenv/lib/python3.10/site-packages/mofax/plot_factors.py:150, in plot_factors_scatter(model, x, y, dist, groups, group_label, color, zero_line_x, zero_line_y, linewidth, zero_linewidth, size, legend, legend_prop, palette, ncols, sharex, sharey, **kwargs)

145 else:

146 plot = partial(

147 sns.scatterplot,

148 s=size,

149 )

→ 150 g = _plot_factors(

151 plot,

152 model,

153 x,

154 y,

155 color,

156 groups=groups,

157 group_label=group_label,

158 zero_line_x=zero_line_x,

159 zero_line_y=zero_line_y,

160 linewidth=linewidth,

161 zero_linewidth=zero_linewidth,

162 legend=legend,

163 legend_prop=legend_prop,

…

71 f"Length mismatch: Expected axis has {old_len} elements, new "

72 f"values have {new_len} elements"

73 )

ValueError: Length mismatch: Expected axis has 6 elements, new values have 3 elements