Systems and methods to display chart bars with variable scaling and/or aggregation

Abstract

Example methods, apparatus, and computer readable storage media are described and disclosed. An example method includes receiving market data related to a tradeable object offered at an exchange, aggregating a first data subset of the market data for a first period, and aggregating a second data subset of the market data for a second period. The second period represents a period of time different from the first period. The example method includes defining a first bar based on the first data subset and a first bar-width, and defining a second bar based on the second data subset and a second bar-width. The second bar-width is related to the first bar-width based on a width-scaling factor. The example method includes displaying the first bar and the second bar in the window, wherein the first bar and the second bar are separated by a bar-spacing.

1 . (canceled) 
     
     
         2 . A computer readable medium having stored therein instructions executable by a processor, wherein the instructions are executable to:
 receive market data related to a tradeable object offered at an exchange;   aggregate a first data subset of the market data for a first period;   aggregate a second data subset of the market data for a second period, the second period represents a period of time different from and before the first period;   aggregate a third data subset of the market data for a third period, the third period represents a period of time different from the first period and the second period, and wherein the third period is before the second period;   define a first bar based on the first data subset and a first bar-width;   define a second bar based on the second data subset and a second bar-width, wherein the second bar-width is related to the first bar-width based on a width-scaling factor, and wherein the second bar-width is based on the width-scaling factor applied to the first bar-width and is narrower than the first bar-width;   define a third bar based on the third data subset and a third bar-width, wherein the third bar-width is related to the second bar-width based on the width-scaling factor, and wherein the third bar-width is scaled based on the width-scaling factor applied to the second bar-width and is narrower than the second bar-width;   display the first bar and the second bar in a window, wherein the first bar and the second bar are separated by a first bar-spacing;   display the third bar in the window in relation to the second bar, wherein the second bar and the third bar are separated by a second bar-spacing that is different than the first bar-spacing, wherein the second bar-spacing is related to the first bar-spacing based on a spatial-scaling factor, wherein the second bar-spacing is based on the spatial-scaling factor applied to the first bar-spacing and is less than the first bar-spacing;   detect a user-input control overlapping with the second bar;   in response to the user-input control, display a second window in relation to the second bar;   define a fourth bar based on the second data subset and the first bar-width; and   display the fourth bar in the second window.   
     
     
         3 . The computer readable medium of  claim 2 , wherein a duration associated with the first period is the same as a duration associated with the second period, and the width-scaling factor is less than one. 
     
     
         4 . The computer readable medium of  claim 2 , wherein the spatial-scaling factor is less than one. 
     
     
         5 . The computer readable medium of  claim 2 , wherein a duration associated with the second period is relative to a duration associated with the first period based on an aggregation-scaling factor greater than one. 
     
     
         6 . The computer readable medium of  claim 2 , wherein the width-scaling factor or a spatial-scaling factor associated with distances between respective bars is less than one. 
     
     
         7 . The computer readable medium of  claim 2 , wherein the width-scaling factor and a spatial-scaling factor associated with distances between respective bars is less than one. 
     
     
         8 . The computer readable medium of  claim 2 , wherein the second window is within the first window. 
     
     
         9 . The computer readable medium of  claim 2 , wherein the second window overlaps the first window. 
     
     
         10 . The computer readable medium of  claim 2 , wherein when values of the first data subset are a subset of the second data subset, the second bar consumes the first bar. 
     
     
         11 . The computer readable medium of  claim 2 , wherein when values of the first data subset are not a subset of the second data subset, the instructions are executable to display the first bar and the second bar as distinct bars in the window. 
     
     
         12 . The computer readable medium of  claim 2 , wherein the width-scaling factor, the spatial-scaling factor associated with distances between respective bars or an aggregation-scaling factor associated with respective periods is a sliding scale. 
     
     
         13 . The computer readable medium of  claim 2 , wherein the width-scaling factor, the spatial-scaling factor associated with distances between respective bars or an aggregation-scaling factor associated with respective periods is logarithmic. 
     
     
         14 . The computer readable medium of  claim 2 , wherein the market data includes an open-value, a high-value, a low-value and a close-value. 
     
     
         15 . The computer readable medium of  claim 14 , wherein each bar of the first bar, second bar, and the third bar is an indicator defined based on the open-value, the high-value, the low-value and the close-value. 
     
     
         16 . The computer readable medium of  claim 2 , wherein each bar of the first bar, the second bar, and the third bar is a candlestick. 
     
     
         17 . The computer readable medium of  claim 2 , wherein each bar of the first bar, the second bar, and the third bar is a vertically-aligned market indicia.