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dynamic java path vs static java path
Some Java functionality, especially those that are concerned with Java events that need to propagate to Matlab callbacks, does n...

5年弱前 | 1

回答済み
Matlab in AVX2 mode (for AMD CPU's)
This is apparently fixed on R2020a as reported by @NedFlanders (original credit is apparently due to @MichelKatz): https://www...

5年弱前 | 0

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How to change Heatmap's Grid (Edge) appereance and behavior?
There are several alternatives: Update the grid style to a non-solid line, for example: hHeatmap = struct(h_map).Heatmap; hHe...

5年弱前 | 5

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Unable to use Java class in a package - Undefined function or variable 'CartesianCoordinate'.
This problem could be due to numerous possible causes, and unfortunately Matlab is not very helpful in explaining the root cause...

5年弱前 | 0

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How to load multiple excel files with multiple excel sheets and store it in matlab faster?
Try to use the 'basic' mode of xlsread, which reads the XLS file directly instead of using the much slower Excel instance: for ...

約5年前 | 0

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Interactive broker timeseries vs history?
Both of these functions in the Trading Toolbox call IB's reqHistoricalDataEx function internally, but for some reason Mathworks ...

約5年前 | 0

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Legend looks very weird
Run the following and check if you still see the same problem: plot(1:3,1:3,'ko-', 1:3,2:4,'ro-', 1:3,3:5,'bo-'); legend('Cere...

約5年前 | 0

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Scrollable text box for GUI with selectable/editable text
Your script generates a GUI that looks perfectly ok to me (fully scrollable & selectable) on my Win10, in both 18b and 20a. Yo...

約5年前 | 2

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How can I suppress warnings about javacomponent being deprecated?
Wrap your javacomponent code as follows: oldWarningState = warning('off', 'MATLAB:ui:javacomponent:FunctionToBeRemoved'); [hjc...

約5年前 | 0

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Plotting performance reduced in APP
App Designer creates an HTML/JavaScript-based webpages (uifigures), which are noticably slower than the Java-based figures that ...

約5年前 | 1

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Datafeed Toolbox IQFeed Level 1 Data Fields Description
Cross-reference: https://www.mathworks.com/matlabcentral/answers/330794-field-list-of-iqfeed-realtime-data In the Trading Toolb...

約5年前 | 0

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With eSignal/InteractiveData being discontinued in the DataFeed Toolbox, are there any other "mid-range" cost options for financial vendors?
A possible mid-range / low-cost financial datafeed is https://eodhistoricaldata.com, which has a Matlab connector called EODML.

約5年前 | 0

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Creating a time series object from IQFeed data.
Consider using my IQML (IQFeed-Matlab) connector as an alternative. IQML enables both synchronous (blocking) and asynchronous (b...

約5年前 | 0

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IQFeed: plot return from array of cells?
I believe that the DataFeed toolbox functions only store data in base workspace variables, from which you need to fetch them aft...

約5年前 | 0

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Is there a way to get the timestamp including milliseconds when using the timeseries function of the datafeed toolbox?
IQFeed only returns the millisecs if you set the connection's IQFeed API protocol to 5.0 (see the IQFeed changelog). In certain ...

約5年前 | 0

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Can't build Tick data from iQfeed for e-mini S&P Futures(symbol: ES)
Consider using my IQML (IQFeed-Matlab) connector for this. IQML enables both synchronous (blocking) and asynchronous (background...

約5年前 | 0

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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...

約5年前 | 0

回答済み
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...

約5年前 | 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...

約5年前 | 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). ...

約5年前 | 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...

約5年前 | 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...

約5年前 | 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...

約5年前 | 0

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

約5年前 | 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 ...

約5年前 | 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...

約5年前 | 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...

約5年前 | 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...

約5年前 | 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 ...

約5年前 | 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\

約5年前 | 0