How to Add x-axis labels to heatmap with dendrogram?

đź“Š Plotly Python
1

I’ve been trying to use different data than what’s offered on the heatmap/dendrogram plotly page (https://plotly.com/python/dendrogram/), but i can’t figure out how to add different labels to the xaxis of the dendrogram. Every time I get “index out of range”.

here’s what i’m working with:

df looks like this (about 400 rows and 12 columns):


fraud	accountid	V1	V2	V3	V4	V5	V6	fraud	nonfraud	fraud_rate	fpr	total
0	5534	-0.613696	3.698772	-5.534941	5.620486	1.649263	-2.335145	1.000000	0.000000	1.000000	0.000000	1.000000
338	3153	0.725646	2.300894	-5.329976	4.007683	-1.730411	-1.732193	1.000000	0.000000	1.000000	0.000000	1.000000
336	8073	-3.576362	3.299436	-7.460433	7.783634	-0.398549	-1.968441	1.000000	0.000000	1.000000	0.000000	1.000000
335	9375	-4.710529	8.636214	-15.496222	10.313349	-4.351341	-3.322689	1.000000	0.000000	1.000000	0.000000	1.000000
334	943	1.852889	1.069593	-1.776101	4.617410	0.770413	-0.400859	1.000000	0.000000	1.000000	0.000000	1.000000
333	9475	-2.207631	3.259076	-5.436365	3.684737	-3.066401	-0.671323	1.000000	0.000000	1.000000	0.000000	1.000000
332	6136	-0.758469	-0.045410	-0.168438	-1.313275	-1.901763	0.739433	1.000000	0.000000	1.000000	0.000000	1.000000
331	2470	-13.192671	12.785971	-9.906650	3.320337	-4.801176	5.760059	1.000000	0.000000	1.000000	0.000000	1.000000
330	2504	-3.240187	2.978122	-4.162314	3.869124	-3.645256	-0.126271	1.000000	0.000000	1.000000	0.000000	1.000000
329	7837	-14.179165	7.421370	-21.405836	11.927512	-7.974281	-2.202710	1.000000	0.000000	1.000000	0.000000	1.000000
328	9373	0.923764	0.344048	-2.880004	1.721680	-3.019565	-0.639736	1.000000	0.000000	1.000000	0.000000	1.000000
327	3460	1.159373	2.844795	-4.050680	4.777701	2.948980	-2.010361	1.000000	0.000000	1.000000	0.000000	1.000000
326	8978	-1.599457	2.607720	-2.987193	3.064156	-2.497914	-0.541103	1.000000	0.000000	1.000000	0.000000	1.000000
325	2283	-3.365319	2.426503	-3.752227	0.276017	-2.305870	-1.961578	1.000000	0.000000	1.000000	0.000000	1.000000
324	7284	-23.914101	13.765942	-25.733734	6.290918	-17.784824	-4.572498	1.000000	0.000000	1.000000	0.000000	1.000000
323	2126	-4.599447	2.762540	-4.656530	5.201403	-2.470388	-0.357618	1.000000	0.000000	1.000000	0.000000	1.000000
322	8069	-16.526507	8.584972	-18.649853	9.505594	-13.793819	-2.832404	1.000000	0.000000	1.000000	0.000000	1.000000
321	6003	-2.450367	2.107729	-5.140663	1.411304	-1.690780	-0.736427	1.000000	0.000000	1.000000	0.000000	1.000000
320	9374	-1.522305	1.505152	0.372364	2.286869	-0.526519	0.998593	1.000000	0.000000	1.000000	0.000000	1.000000
319	2504	-15.271362	8.326581	-22.338591	11.885313	-8.721334	-2.324307	1.000000	0.000000	1.000000	0.000000	1.000000

the code:

#create dendrograms
fig = ff.create_dendrogram(fraud_df, orientation='bottom')
for i in range(len(fig['data'])):
    fig['data'][i]['yaxis'] = 'y2'
fig.show()

dendro_side = ff.create_dendrogram(fraud_df, orientation='right')
for i in range(len(dendro_side['data'])):
    dendro_side['data'][i]['xaxis'] = 'x2'
dendro_side.show()

# Add Side Dendrogram Data to Figure
for data in dendro_side['data']:
    fig.add_trace(data)

# Create Heatmap
dendro_leaves = dendro_side['layout']['yaxis']['ticktext'] #grabs just the values of y axis
dendro_leaves = list(map(int, dendro_leaves)) #put in single column list
data_dist = pdist(fraud_df) #create pdist from df
heat_data = squareform(data_dist) #put in squareform for heatmap
heat_data = heat_data[dendro_leaves,:] #substitute dendro_leave sin the squareform of the pdist of the df
heat_data = heat_data[:,dendro_leaves] #switch axex
heat_data

#create heatmap
heatmap = [
    go.Heatmap(
        x = dendro_leaves,
        y = dendro_leaves,
        z = heat_data,
        showlegend = True,
        colorscale = 'plotly3'
    )
]

#add data to x and y axes of heatmap
heatmap[0]['x'] = fig['layout']['xaxis']['tickvals']
heatmap[0]['y'] = dendro_side['layout']['yaxis']['tickvals']

# Add Heatmap Data to Figure
for data in heatmap:
    fig.add_trace(data)
    
# Edit Layout
fig.update_layout({'width':2000
                   , 'height':1200
                   , 'showlegend':True
                   , 'hovermode': 'closest'
                   , 'title': "Clustered Heatmap of Creditcard Fraud Data"
                  })

# # Edit xaxis
fig.update_layout(xaxis={'domain': [.15, 1],
                                  'mirror': False,
                                  'showgrid': False,
                                  'showline': False,
                                  'zeroline': False,
                                  'ticks':""})
# Edit xaxis2
fig.update_layout(xaxis2={'domain': [0, .15],
                                   'mirror': False,
                                   'showgrid': False,
                                   'showline': False,
                                   'zeroline': False,
                                   'showticklabels': False,
                                   'ticks':""})

# Edit yaxis
fig.update_layout(yaxis={'domain': [0, .85],
                                  'mirror': False,
                                  'showgrid': False,
                                  'showline': False,
                                  'zeroline': False,
                                  'showticklabels': False,
                                  'ticks': ""
                        })
# Edit yaxis2
fig.update_layout(yaxis2={'domain':[.825, .975],
                                   'mirror': False,
                                   'showgrid': False,
                                   'showline': False,
                                   'zeroline': False,
                                   'showticklabels': False,
                                   'ticks':""})

# fig.show()

image
image1784Ă—1064 495 KB

Result:
If i exclude adding labels in the dendrogram figure, it works but the xaxis is the 400 rows of the df index. How do i get the xaxis to be the columns of the dataframe?