如何使用matplotlib向烛台添加边框或边缘颜色？

Question

I'm trying to add a black border around the candlesticks in a matplotlib plot. Here's the code I've tried, which resulted in an error ( TypeError: candlestick_ohlc() got an unexpected keyword argument 'edgecolor' )

candlestick_ohlc(ax2, ohlc, width=0.9, edgecolor = 'k', colorup='g', colordown='r')

edgecolor = 'k' is unrecognized. I've used it on the fill_between function before but the candlestick_ohlc won't accept it.

this is the result I want:

this is what I currently have:

thank you!

Answer 1

From the documentation , candlestick_ohlc returns a tuple of lists, one list for the lines, one for the rectangles. You can store each of these lists and then iterate over each element to change their properties.

ls, rs = candlestick_ohlc(ax, quotes, width=0.6, colorup='b', colordown='g')

for r in rs:
    r.set_edgecolor('r')
    r.set_linewidth(1.)