| angle | Calculates angle of 2-dimensional vectors. |
| databar | Plot databars for matrix visualization |
| debugText | Prints variables or expressions for debug. |
| dir.create.deep | Checks and creates a unknown directory when it is not exist. |
| euclidean | Calculates euclidean distance of vectors. |
| eval_timer | Measure the elapsed time of 'eval' and returns the result. |
| grapes-.-grapes | magrittr operator with giving nothing to first argment |
| grapes-T.-grapes | magrittr tee operator with giving nothing to first argment |
| image2 | Improved 'image' function for matrix visualization |
| is.prob | Asserts 'x' whether probabic number or not. |
| is.range | Asserts 'x' whether numeric range or not. |
| is.todayDirectory | Checks if current directory is today directory or not. |
| keywait | Waits until enter key is pressd. |
| matlist | Converts lists or vectors that nested by list to matrix. |
| max2nd | Calculate second highest value in vector. |
| memory_summary | Summarize object size in environment. |
| min2nd | Calculate second lowest value in vector. |
| order2 | 'order' function regards a duplication value as the same... |
| order.col | Orders matrix in each rows. |
| overwriteEllipsis | Overwrite some fixed arguments to the arguments '...' given... |
| padding.matrix | Padding (expanding rows and cols) for 'matrix'. |
| passign | assign function for pipe stream |
| plotLines | Plot matlix as a set of lines |
| preparePrintify | Prepare the process that enables to print out your R-notebook... |
| print.noattr | Print variable without inconsiderable attributes. |
| quadrature | Integrates discrete vector by quadrature. |
| rank.matrix | Calculates rank of each elements of matrix. |
| replaceNA | Replaces NA from matrix with maintaining the dimension. |
| resetMfrow | Reset the graphics parameter mfrow as defalt. |
| rowMinus | Calculates 'X - a' with row first. |
| rowNorm | Calculates norm for each row of 'X'. |
| rowTimes | Calculates 'X \* a' with row first. |
| runifN | Generates random natural numbers. |
| savedDir | Retruns or Sets default save directory. |
| saveEnvironment | Save global environment. |
| saveggpng | Save plot generated by ggplot2. |
| savepng | Saves plot to today directory. |
| savepngTitle | Saves plot with adding title on the figure. |
| setMargin | Changes margins for plot |
| setMarginZero | Changes margins to zeros |
| setwdProject | Sets current directory to project directory. |
| softwriteEllipsis | Overwrite some desirable arguments to '...' softly. |
| sort_col | Sorts matrix in each rows. |
| subwd | Creates sub directory for saving a number of images. |
| todaywd | Sets working directory to today directory. |
| vnorm | Calculates norm of 'x'. |
| which.max.ind | Searches index of maximum element from matrix. |
| which.min.ind | Searches index of minimum element from matrix. |
