八、【表现】table数据类型索引:使用点表示法或多级索引进行下标时提高了性能Classes: Improved performance for static methods, constant property access, and package functions in scriptstry块:提高语句无错误运行时的性能Python数据类型转换:提高 了在进程外模式下在Python和MATLAB数据类型之间转换时的性能MATLAB Engine...
PaddingValue=paddingIdx); X = cat(1,X{:}); % Convert to dlarray. X = dlarray(X,"BTC"); % If training on a GPU, then convert data to gpuArray. if canUseGPU X = gpuArray(X); end % Calculate sequence lengths. sequenceLengths = doclength(documentsBatch); ...
Use theisnanorismissingfunction to detectNaNvalues in an array. Use theanynanoranymissingfunction to determine if any array element isNaN. Use thermmissingfunction to detect and removeNaNvalues, and thefillmissingfunction to detectNaNvalues and replace them with non-NaNvalues. ...
field_num = mxGetFieldNumber(pa, "fieldname"); mxSetFieldByNumber(pa, index, field_num, new_value_pa); with a call tomxSetField: mxSetField(pa, index, "fieldname", new_value_pa); Fortran Language In Fortran, you can replace the statements: ...
(1,size_x,'double');% code.2: step.1 vectorize the variable xx=min_x:max_x;% code.2: step.2 For variable y, replace the `for cycle` by vectorized operationy=cos(x);forj=1:length(y)ify(j)<0.5z(j)=cos(y(j));elsez(j)=sin(y(j));endendtime=time+toc;enddisp(['code2...
Use fillmissing to replace NaN values in CustAge with the median value and to replace the <missing> values in ResStatus with 'Tenant'. Use predictorinfo to verify the filled values. Get sc = fillmissing(sc,{'CustAge'},'median'); sc = fillmissing(sc,{'ResStatus'},'constant','Tenant...
Record frames of the peaks function vibrating by using getframe in a loop. Preallocate an array to store the movie frames. Z = peaks; surf(Z) axis tight manual ax = gca; ax.NextPlot = 'replaceChildren'; loops = 40; F(loops) = struct('cdata',[],'colormap',[]); for j = 1:...
In this example, -99 is a nonstandard value for indicating a missing value. To replace the instances of -99 with standard missing values, use the standardizeMissing function. NaN is the standard missing value for single- and double-precision floating-point numeric arrays. Get messyTable = st...
Font size, specified as a scalar value greater than zero in point units. The default font size depends on the specific operating system and locale. If you change the axes font size, then MATLAB automatically sets the font size of the colorbar to 90% of the axes font size. If you manual...
For more information, including suggestions on updating code, seeReplace Discouraged Instances of hist and histc. Description hist(x)creates a histogram bar chart of the elements in vectorx. The elements inxare sorted into 10 equally spaced bins along thex-axis between the minimum and maximum va...