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How to effectively utilize listener and callback functions with iqfeed function realtime.
Consider using my IQML (IQFeed-Matlab) connector as an alternative. IQML enables both synchronous (blocking) and asynchronous (b...

5 years 前 | 0

已回答
How do I get tick-by-tick historical data from iqFeed ?
Consider using my IQML (IQFeed-Matlab) connector for this. IQML enables both synchronous (blocking) and asynchronous (background...

5 years 前 | 0

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how to get multiple stocks datafeed for IQFeed?
I believe that the Datafeed Toolbox only allows specifying one symbol at a time. See here for example. As an alternative, consi...

5 years 前 | 0

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Does the Matlab iqfeed link timeseries function provide bid ask data
I believe that IQFeed provides bid/ask data only for historic ticks (HTT,HTX,HTD) queries, but not interval queries (e.g. HIT). ...

5 years 前 | 0

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How to plot data from iqfeed
Consider using my IQML (IQFeed-Matlab) connector for this. IQML enables both synchronous (blocking) and asynchronous (background...

5 years 前 | 0

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IQFeed market depth and time series not working
!NO_DATA! is an IQFeed message that means there is no market-depth data for this symbol. It is my understanding that Market Dept...

5 years 前 | 0

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Listener for receiving real time data through DataFeed Toolbox
Consider using my IQML (IQFeed-Matlab) connector as an alternative. IQML enables both synchronous (blocking) and asynchronous (b...

5 years 前 | 0

已回答
Field List of IQFeed Realtime Data
Cross-reference: https://www.mathworks.com/matlabcentral/answers/459284-datafeed-toolbox-iqfeed-level-1-data-fields-description ...

5 years 前 | 0

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IQFEED and Matlab too slow
For anyone interested, the IQML (IQFeed-Matlab) connector was specifically designed for top performance, including parallel and ...

5 years 前 | 0

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Datafeed toolbox & IqFeed -- any known solution to IAsyncResult error?
Perhaps your IQFeed subscription does not enable fetching historic tick/interval data for XIV. Adding the necessary subscription...

5 years 前 | 0

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Are synchronous IQFEED data queries possible in Datafeed Toolbox 4.5 (R2013a)?
For anyone interested, the IQML (IQFeed-Matlab) connector enables both synchronous (blocking) and asynchronous (background) quer...

5 years 前 | 0

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Can I use the function HISTORY with multiple security inputs for IQFEED data in MATLAB (R2013a)?
For anyone interested, the IQML (IQFeed-Matlab) connector enables querying multiple securities at once, specified as either a ce...

5 years 前 | 0

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3D point clouds with variable marker transparency, color and size
As an alternative to scatter3, you could keep using plot3 and attach a callback function to the axes that gets invoked whenever ...

5 years 前 | 2

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Does 2019b (windows) contains java?
The Java runtime is located in C:\Program Files\Matlab\R2019b\sys\java\jre\win64\jre\bin\

5 years 前 | 0

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Figure uitable does not display html image in 2019b
It's not just in tables. For some reason <img> tags are now ignored in all uicontrols (inc. buttons, listboxes etc.). There is n...

5 years 前 | 3

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How to keep axes on top of uipanels?
You can also use a semi-tranparent patch. Patches are children of axes, so they move around with the axes if you zoom or pan, an...

5 years 前 | 1

已回答
How to keep axes on top of uipanels?
You had a few errors in your code: first, you made Panel3 transparent instead of Panel2. Secondly, you need to create Panel2 ins...

5 years 前 | 0

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How can I put a javacomponent in the app designer?
Java components are not supported by AppDesigner or uifigures. This is not a temporary limitation - it is a fundamental outcome ...

5 years 前 | 4

| 已接受

已回答
deprecated javacomponent and javaframe
I am very sorry to say that I am not aware of any easy way to make the transition from a Java-rich GUI to uifigures. All the mai...

5 years 前 | 9

已回答
com.mathworks.*....
These Java classes are internal to Matlab, are unsupported and undocumented. To the best of my knowledge, the only location that...

5 years 前 | 1

| 已接受

已回答
How do I speed up plotting of interactable scatter points?
Indeed - you get a single line object with multiple data points, this is the main reason for the speedup. In your callback you c...

5 years 前 | 0

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How do I speed up plotting of interactable scatter points?
Try to use the vectorized version of plot to plot all the data points in a single function call rather than a loop, and also try...

5 years 前 | 0

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How can convert a .gdb (binary file) file to a .mat file ?
I am not familiar with a direct GDB-to-Matlab function. The easiest solution may be to store the data in CSV file rather than G...

5 years 前 | 0

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How to speed up function approximation?
It may be useful to replace the string with a function handle. Also, setting the convergence tolerances to smaller values than...

5 years 前 | 0

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Converting .fig file into 2D .dxf file
I think it may be simplest to save the figure as PDF and then use one of the multiple available converters from PDF to DXF.

5 years 前 | 1

| 已接受

已回答
Subscript in stackedplot DisplayLabels
You can access the individual stacked-axes' properties via the hidden sub-property Axes of the stackedplot's AxesProperties prop...

5 years 前 | 4

| 已接受

已回答
Improving Presentation of a Graph
Regarding output quality, esp. for EPS that you mentioned - many people found the export_fig utility useful for preparing public...

5 years 前 | 0

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The following appears in the command window. What does it mean?java.lang.NullPointerException
This is an error that originates from Java code, typically concerning some GUI component that misbehavs or which does not handle...

5 years 前 | 0

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Matlab uitable column font size using html not working
HTML is only supported out-of-the-box in the legacy (Java-based) figures, not the new web-based (AppDesigner) uifigures. You ma...

5 years 前 | 0

| 已接受

已回答
Why does "Auto Width" feature not adapt to table axes size in GUIDE?
The "AutoWidth" setting of the uitable only sets the individual column's width based on its contents. It does not control the en...

5 years 前 | 2