I have a large sparse matrix and would like to plot it using pyqtgraph. At the moment I am just converting the matrix into a full matrix with the obvious drawback of large memory consumption. Is there a more elegant way of plotting a sparse 2D array using pyqtgraph?

I have a large sparse matrix and would like to plot it using pyqtgraph. At the moment I am just converting the matrix into a full matrix with the obvious drawback of large memory consumption. Is there a more elegant way of plotting a sparse 2D array using pyqtgraph?

I am trying to programmatically add and remove plots to GraphicsLayoutWidget. Adding works as expected via addPlot(row, col) (col is zero for me). Unfortunately there is no removePlot function (which I find odd!), so I am trying to use removeItems(plot). This does not seem to work, though.

I was wondering if it is possible to seek some help on how to customize the y-axis values when plotting an image with ImageItem.

I want to plott live data with the pyqtgraph. This is a minimal code sample:

I have an dataframe, i import this dataframe in an python modul and then i plott them live. Each dataframe has 100 numbers. For this i use pyqtgraph: