switched to standard higlass method for finding global max and min values
switched to standard higlass method for finding global max and min values

hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/4DN_matrix-viewer,hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/4DN_matrix-viewer,hms-dbmi/4DN_matrix-viewer