show data under cursor in epochs_obj.plot_image

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1
  • MNE version: 1.8.0
  • operating system: Red Hat Enterprise Linux 8.8

** k = 0
fig = plt.figure(figsize=(18, 10))
chan_name = epochs_obj.ch_names[k]
grid = GridSpec(6, 18, wspace=0.1, hspace=0.1)

ax1 = plt.subplot(grid[:4, :8])
ax2 = plt.subplot(grid[:4, 8:9])
ax3 = plt.subplot(grid[4:6, :8])

# Remove condition from the plot call
epochs_obj['asteroids_hit'].plot_image(
    picks=chan_name,
    axes=[ax1, ax3, ax2],
    title='Subject' + subject_id + " " + chan_name +', (hit)',
    cmap='interactive'
)
fig.show().**

I can plot figures successfully, with the code above, but I need to be able to see the data points under the cursor to perform the visual QC.

download
download846×853 186 KB

For instance, I would like to know what trials at a specific time point look differently from others. How do I need to modify the code?

2

Look in the top-right corner of the figure window, it should show the data-coordinates of your cursor.

For example, in the figure below, my mouse cursor was hoovering on epoch 271

image
image907×902 199 KB

3

Hi Marijn,

Thank you for your response.

What code did you use?
My code produces a figure that does not pop up in a separate window and is does not show coordinates the way it shows for you.
Many thanks!

4

Hi Marijn,
The issue was that I worked on a supercluster that would not allow producing pop up figures. The code works as described when I run it on my personal computer.
Thank you again!