如何在jupyter pandas中的每个scatter_matrix上添加标题

因此,我在不同时间对数据集进行了多次采样.
对于每个采样,我想绘制一个散射矩阵,每个散射矩阵应该将采样时间作为标题.

问题是pandas.tools.plotting.scatter_matrix没有参数“title”

当我在绘制图形之前尝试打印()标题时,它会在绘制图形之前打印所有标题.

for qid in qids:
    date = db[collection].find_one({ "querySummary.qid": qid }, {"querySummary.date":1})["querySummary"]["date"].isoformat()
    print(date) # does not provide the desired result
    cursor = db[collection].find({ "querySummary.qid": qid })
    cols = ["resultNum", "col2", "col3", "col4"] # list of columns labels
    rows = [] # will be populated below
    for result in cursor:
        rows.append([result["resultNum"], result["col2"], result["col3"], result["col4"]])
    df = pd.DataFrame(rows, columns=cols);
    scatter_matrix(df, alpha=0.3, figsize=(16,16), diagonal='kde', marker=date)

通过运行代码,在最终绘制第一个scatter_matrix之前,所有标题都会打印出来：

有任何想法吗？

解决方法:

在这种情况下,您不能使用print(日期).相反,请为每个scatter_matrix尝试plt.suptitle(date),如下所示.

for qid in qids:
    date = db[collection].find_one({ "querySummary.qid": qid }, {"querySummary.date":1})["querySummary"]["date"].isoformat()
    cursor = db[collection].find({ "querySummary.qid": qid })
    cols = ["resultNum", "col2", "col3", "col4"] # list of columns labels
    rows = [] # will be populated below

    for result in cursor:
        rows.append([result["resultNum"], result["col2"], result["col3"], result["col4"]])
    df = pd.DataFrame(rows, columns=cols);
    scatter_matrix(df, alpha=0.3, figsize=(16,16), diagonal='kde', marker='o')

    plt.suptitle(date)